cregit-Linux how code gets into the kernel

Release 4.7 include/linux/fs.h

Directory: include/linux
#ifndef _LINUX_FS_H

#define _LINUX_FS_H

#include <linux/linkage.h>
#include <linux/wait.h>
#include <linux/kdev_t.h>
#include <linux/dcache.h>
#include <linux/path.h>
#include <linux/stat.h>
#include <linux/cache.h>
#include <linux/list.h>
#include <linux/list_lru.h>
#include <linux/llist.h>
#include <linux/radix-tree.h>
#include <linux/rbtree.h>
#include <linux/init.h>
#include <linux/pid.h>
#include <linux/bug.h>
#include <linux/mutex.h>
#include <linux/rwsem.h>
#include <linux/capability.h>
#include <linux/semaphore.h>
#include <linux/fiemap.h>
#include <linux/rculist_bl.h>
#include <linux/atomic.h>
#include <linux/shrinker.h>
#include <linux/migrate_mode.h>
#include <linux/uidgid.h>
#include <linux/lockdep.h>
#include <linux/percpu-rwsem.h>
#include <linux/blk_types.h>
#include <linux/workqueue.h>
#include <linux/percpu-rwsem.h>
#include <linux/delayed_call.h>

#include <asm/byteorder.h>
#include <uapi/linux/fs.h>

struct backing_dev_info;
struct bdi_writeback;
struct export_operations;
struct hd_geometry;
struct iovec;
struct kiocb;
struct kobject;
struct pipe_inode_info;
struct poll_table_struct;
struct kstatfs;
struct vm_area_struct;
struct vfsmount;
struct cred;
struct swap_info_struct;
struct seq_file;
struct workqueue_struct;
struct iov_iter;
struct fscrypt_info;
struct fscrypt_operations;

extern void __init inode_init(void);
extern void __init inode_init_early(void);
extern void __init files_init(void);
extern void __init files_maxfiles_init(void);

extern struct files_stat_struct files_stat;
extern unsigned long get_max_files(void);
extern int sysctl_nr_open;
extern struct inodes_stat_t inodes_stat;
extern int leases_enable, lease_break_time;
extern int sysctl_protected_symlinks;
extern int sysctl_protected_hardlinks;

struct buffer_head;

typedef int (get_block_t)(struct inode *inode, sector_t iblock,
			struct buffer_head *bh_result, int create);

typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
			ssize_t bytes, void *private);


#define MAY_EXEC		0x00000001

#define MAY_WRITE		0x00000002

#define MAY_READ		0x00000004

#define MAY_APPEND		0x00000008

#define MAY_ACCESS		0x00000010

#define MAY_OPEN		0x00000020

#define MAY_CHDIR		0x00000040
/* called from RCU mode, don't block */

#define MAY_NOT_BLOCK		0x00000080

/*
 * flags in file.f_mode.  Note that FMODE_READ and FMODE_WRITE must correspond
 * to O_WRONLY and O_RDWR via the strange trick in __dentry_open()
 */

/* file is open for reading */

#define FMODE_READ		((__force fmode_t)0x1)
/* file is open for writing */

#define FMODE_WRITE		((__force fmode_t)0x2)
/* file is seekable */

#define FMODE_LSEEK		((__force fmode_t)0x4)
/* file can be accessed using pread */

#define FMODE_PREAD		((__force fmode_t)0x8)
/* file can be accessed using pwrite */

#define FMODE_PWRITE		((__force fmode_t)0x10)
/* File is opened for execution with sys_execve / sys_uselib */

#define FMODE_EXEC		((__force fmode_t)0x20)
/* File is opened with O_NDELAY (only set for block devices) */

#define FMODE_NDELAY		((__force fmode_t)0x40)
/* File is opened with O_EXCL (only set for block devices) */

#define FMODE_EXCL		((__force fmode_t)0x80)
/* File is opened using open(.., 3, ..) and is writeable only for ioctls
   (specialy hack for floppy.c) */

#define FMODE_WRITE_IOCTL	((__force fmode_t)0x100)
/* 32bit hashes as llseek() offset (for directories) */

#define FMODE_32BITHASH         ((__force fmode_t)0x200)
/* 64bit hashes as llseek() offset (for directories) */

#define FMODE_64BITHASH         ((__force fmode_t)0x400)

/*
 * Don't update ctime and mtime.
 *
 * Currently a special hack for the XFS open_by_handle ioctl, but we'll
 * hopefully graduate it to a proper O_CMTIME flag supported by open(2) soon.
 */

#define FMODE_NOCMTIME		((__force fmode_t)0x800)

/* Expect random access pattern */

#define FMODE_RANDOM		((__force fmode_t)0x1000)

/* File is huge (eg. /dev/kmem): treat loff_t as unsigned */

#define FMODE_UNSIGNED_OFFSET	((__force fmode_t)0x2000)

/* File is opened with O_PATH; almost nothing can be done with it */

#define FMODE_PATH		((__force fmode_t)0x4000)

/* File needs atomic accesses to f_pos */

#define FMODE_ATOMIC_POS	((__force fmode_t)0x8000)
/* Write access to underlying fs */

#define FMODE_WRITER		((__force fmode_t)0x10000)
/* Has read method(s) */

#define FMODE_CAN_READ          ((__force fmode_t)0x20000)
/* Has write method(s) */

#define FMODE_CAN_WRITE         ((__force fmode_t)0x40000)

/* File was opened by fanotify and shouldn't generate fanotify events */

#define FMODE_NONOTIFY		((__force fmode_t)0x4000000)

/*
 * Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector
 * that indicates that they should check the contents of the iovec are
 * valid, but not check the memory that the iovec elements
 * points too.
 */

#define CHECK_IOVEC_ONLY -1

/*
 * The below are the various read and write types that we support. Some of
 * them include behavioral modifiers that send information down to the
 * block layer and IO scheduler. Terminology:
 *
 *      The block layer uses device plugging to defer IO a little bit, in
 *      the hope that we will see more IO very shortly. This increases
 *      coalescing of adjacent IO and thus reduces the number of IOs we
 *      have to send to the device. It also allows for better queuing,
 *      if the IO isn't mergeable. If the caller is going to be waiting
 *      for the IO, then he must ensure that the device is unplugged so
 *      that the IO is dispatched to the driver.
 *
 *      All IO is handled async in Linux. This is fine for background
 *      writes, but for reads or writes that someone waits for completion
 *      on, we want to notify the block layer and IO scheduler so that they
 *      know about it. That allows them to make better scheduling
 *      decisions. So when the below references 'sync' and 'async', it
 *      is referencing this priority hint.
 *
 * With that in mind, the available types are:
 *
 * READ                 A normal read operation. Device will be plugged.
 * READ_SYNC            A synchronous read. Device is not plugged, caller can
 *                      immediately wait on this read without caring about
 *                      unplugging.
 * READA                Used for read-ahead operations. Lower priority, and the
 *                      block layer could (in theory) choose to ignore this
 *                      request if it runs into resource problems.
 * WRITE                A normal async write. Device will be plugged.
 * WRITE_SYNC           Synchronous write. Identical to WRITE, but passes down
 *                      the hint that someone will be waiting on this IO
 *                      shortly. The write equivalent of READ_SYNC.
 * WRITE_ODIRECT        Special case write for O_DIRECT only.
 * WRITE_FLUSH          Like WRITE_SYNC but with preceding cache flush.
 * WRITE_FUA            Like WRITE_SYNC but data is guaranteed to be on
 *                      non-volatile media on completion.
 * WRITE_FLUSH_FUA      Combination of WRITE_FLUSH and FUA. The IO is preceded
 *                      by a cache flush and data is guaranteed to be on
 *                      non-volatile media on completion.
 *
 */

#define RW_MASK			REQ_WRITE

#define RWA_MASK		REQ_RAHEAD


#define READ			0

#define WRITE			RW_MASK

#define READA			RWA_MASK


#define READ_SYNC		(READ | REQ_SYNC)

#define WRITE_SYNC		(WRITE | REQ_SYNC | REQ_NOIDLE)

#define WRITE_ODIRECT		(WRITE | REQ_SYNC)

#define WRITE_FLUSH		(WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FLUSH)

#define WRITE_FUA		(WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FUA)

#define WRITE_FLUSH_FUA		(WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FLUSH | REQ_FUA)

/*
 * Attribute flags.  These should be or-ed together to figure out what
 * has been changed!
 */

#define ATTR_MODE	(1 << 0)

#define ATTR_UID	(1 << 1)

#define ATTR_GID	(1 << 2)

#define ATTR_SIZE	(1 << 3)

#define ATTR_ATIME	(1 << 4)

#define ATTR_MTIME	(1 << 5)

#define ATTR_CTIME	(1 << 6)

#define ATTR_ATIME_SET	(1 << 7)

#define ATTR_MTIME_SET	(1 << 8)

#define ATTR_FORCE	(1 << 9) 
/* Not a change, but a change it */

#define ATTR_ATTR_FLAG	(1 << 10)

#define ATTR_KILL_SUID	(1 << 11)

#define ATTR_KILL_SGID	(1 << 12)

#define ATTR_FILE	(1 << 13)

#define ATTR_KILL_PRIV	(1 << 14)

#define ATTR_OPEN	(1 << 15) 
/* Truncating from open(O_TRUNC) */

#define ATTR_TIMES_SET	(1 << 16)

/*
 * Whiteout is represented by a char device.  The following constants define the
 * mode and device number to use.
 */

#define WHITEOUT_MODE 0

#define WHITEOUT_DEV 0

/*
 * This is the Inode Attributes structure, used for notify_change().  It
 * uses the above definitions as flags, to know which values have changed.
 * Also, in this manner, a Filesystem can look at only the values it cares
 * about.  Basically, these are the attributes that the VFS layer can
 * request to change from the FS layer.
 *
 * Derek Atkins <warlord@MIT.EDU> 94-10-20
 */

struct iattr {
	
unsigned int	ia_valid;
	
umode_t		ia_mode;
	
kuid_t		ia_uid;
	
kgid_t		ia_gid;
	
loff_t		ia_size;
	
struct timespec	ia_atime;
	
struct timespec	ia_mtime;
	
struct timespec	ia_ctime;

	/*
         * Not an attribute, but an auxiliary info for filesystems wanting to
         * implement an ftruncate() like method.  NOTE: filesystem should
         * check for (ia_valid & ATTR_FILE), and not for (ia_file != NULL).
         */
	
struct file	*ia_file;
};

/*
 * Includes for diskquotas.
 */
#include <linux/quota.h>

/*
 * Maximum number of layers of fs stack.  Needs to be limited to
 * prevent kernel stack overflow
 */

#define FILESYSTEM_MAX_STACK_DEPTH 2

/** 
 * enum positive_aop_returns - aop return codes with specific semantics
 *
 * @AOP_WRITEPAGE_ACTIVATE: Informs the caller that page writeback has
 *                          completed, that the page is still locked, and
 *                          should be considered active.  The VM uses this hint
 *                          to return the page to the active list -- it won't
 *                          be a candidate for writeback again in the near
 *                          future.  Other callers must be careful to unlock
 *                          the page if they get this return.  Returned by
 *                          writepage(); 
 *
 * @AOP_TRUNCATED_PAGE: The AOP method that was handed a locked page has
 *                      unlocked it and the page might have been truncated.
 *                      The caller should back up to acquiring a new page and
 *                      trying again.  The aop will be taking reasonable
 *                      precautions not to livelock.  If the caller held a page
 *                      reference, it should drop it before retrying.  Returned
 *                      by readpage().
 *
 * address_space_operation functions return these large constants to indicate
 * special semantics to the caller.  These are much larger than the bytes in a
 * page to allow for functions that return the number of bytes operated on in a
 * given page.
 */


enum positive_aop_returns {
	
AOP_WRITEPAGE_ACTIVATE	= 0x80000,
	
AOP_TRUNCATED_PAGE	= 0x80001,
};


#define AOP_FLAG_UNINTERRUPTIBLE	0x0001 
/* will not do a short write */

#define AOP_FLAG_CONT_EXPAND		0x0002 
/* called from cont_expand */

#define AOP_FLAG_NOFS			0x0004 
/* used by filesystem to direct
                                                * helper code (eg buffer layer)
                                                * to clear GFP_FS from alloc */

/*
 * oh the beauties of C type declarations.
 */
struct page;
struct address_space;
struct writeback_control;


#define IOCB_EVENTFD		(1 << 0)

#define IOCB_APPEND		(1 << 1)

#define IOCB_DIRECT		(1 << 2)

#define IOCB_HIPRI		(1 << 3)

#define IOCB_DSYNC		(1 << 4)

#define IOCB_SYNC		(1 << 5)


struct kiocb {
	
struct file		*ki_filp;
	
loff_t			ki_pos;
	
void (*ki_complete)(struct kiocb *iocb, long ret, long ret2);
	
void			*private;
	
int			ki_flags;
};


static inline bool is_sync_kiocb(struct kiocb *kiocb) { return kiocb->ki_complete == NULL; }

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static inline int iocb_flags(struct file *file);
static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp) { *kiocb = (struct kiocb) { .ki_filp = filp, .ki_flags = iocb_flags(filp), }; }

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/* * "descriptor" for what we're up to with a read. * This allows us to use the same read code yet * have multiple different users of the data that * we read from a file. * * The simplest case just copies the data to user * mode. */ typedef struct { size_t written; size_t count; union { char __user *buf; void *data; } arg; int error; } read_descriptor_t; typedef int (*read_actor_t)(read_descriptor_t *, struct page *, unsigned long, unsigned long); struct address_space_operations { int (*writepage)(struct page *page, struct writeback_control *wbc); int (*readpage)(struct file *, struct page *); /* Write back some dirty pages from this mapping. */ int (*writepages)(struct address_space *, struct writeback_control *); /* Set a page dirty. Return true if this dirtied it */ int (*set_page_dirty)(struct page *page); int (*readpages)(struct file *filp, struct address_space *mapping, struct list_head *pages, unsigned nr_pages); int (*write_begin)(struct file *, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata); int (*write_end)(struct file *, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, struct page *page, void *fsdata); /* Unfortunately this kludge is needed for FIBMAP. Don't use it */ sector_t (*bmap)(struct address_space *, sector_t); void (*invalidatepage) (struct page *, unsigned int, unsigned int); int (*releasepage) (struct page *, gfp_t); void (*freepage)(struct page *); ssize_t (*direct_IO)(struct kiocb *, struct iov_iter *iter); /* * migrate the contents of a page to the specified target. If * migrate_mode is MIGRATE_ASYNC, it must not block. */ int (*migratepage) (struct address_space *, struct page *, struct page *, enum migrate_mode); int (*launder_page) (struct page *); int (*is_partially_uptodate) (struct page *, unsigned long, unsigned long); void (*is_dirty_writeback) (struct page *, bool *, bool *); int (*error_remove_page)(struct address_space *, struct page *); /* swapfile support */ int (*swap_activate)(struct swap_info_struct *sis, struct file *file, sector_t *span); void (*swap_deactivate)(struct file *file); }; extern const struct address_space_operations empty_aops; /* * pagecache_write_begin/pagecache_write_end must be used by general code * to write into the pagecache. */ int pagecache_write_begin(struct file *, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata); int pagecache_write_end(struct file *, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, struct page *page, void *fsdata); struct address_space { struct inode *host; /* owner: inode, block_device */ struct radix_tree_root page_tree; /* radix tree of all pages */ spinlock_t tree_lock; /* and lock protecting it */ atomic_t i_mmap_writable;/* count VM_SHARED mappings */ struct rb_root i_mmap; /* tree of private and shared mappings */ struct rw_semaphore i_mmap_rwsem; /* protect tree, count, list */ /* Protected by tree_lock together with the radix tree */ unsigned long nrpages; /* number of total pages */ /* number of shadow or DAX exceptional entries */ unsigned long nrexceptional; pgoff_t writeback_index;/* writeback starts here */ const struct address_space_operations *a_ops; /* methods */ unsigned long flags; /* error bits/gfp mask */ spinlock_t private_lock; /* for use by the address_space */ struct list_head private_list; /* ditto */ void *private_data; /* ditto */ } __attribute__((aligned(sizeof(long)))); /* * On most architectures that alignment is already the case; but * must be enforced here for CRIS, to let the least significant bit * of struct page's "mapping" pointer be used for PAGE_MAPPING_ANON. */ struct request_queue; struct block_device { dev_t bd_dev; /* not a kdev_t - it's a search key */ int bd_openers; struct inode * bd_inode; /* will die */ struct super_block * bd_super; struct mutex bd_mutex; /* open/close mutex */ struct list_head bd_inodes; void * bd_claiming; void * bd_holder; int bd_holders; bool bd_write_holder; #ifdef CONFIG_SYSFS struct list_head bd_holder_disks; #endif struct block_device * bd_contains; unsigned bd_block_size; struct hd_struct * bd_part; /* number of times partitions within this device have been opened. */ unsigned bd_part_count; int bd_invalidated; struct gendisk * bd_disk; struct request_queue * bd_queue; struct list_head bd_list; /* * Private data. You must have bd_claim'ed the block_device * to use this. NOTE: bd_claim allows an owner to claim * the same device multiple times, the owner must take special * care to not mess up bd_private for that case. */ unsigned long bd_private; /* The counter of freeze processes */ int bd_fsfreeze_count; /* Mutex for freeze */ struct mutex bd_fsfreeze_mutex; }; /* * Radix-tree tags, for tagging dirty and writeback pages within the pagecache * radix trees */ #define PAGECACHE_TAG_DIRTY 0 #define PAGECACHE_TAG_WRITEBACK 1 #define PAGECACHE_TAG_TOWRITE 2 int mapping_tagged(struct address_space *mapping, int tag);
static inline void i_mmap_lock_write(struct address_space *mapping) { down_write(&mapping->i_mmap_rwsem); }

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static inline void i_mmap_unlock_write(struct address_space *mapping) { up_write(&mapping->i_mmap_rwsem); }

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static inline void i_mmap_lock_read(struct address_space *mapping) { down_read(&mapping->i_mmap_rwsem); }

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static inline void i_mmap_unlock_read(struct address_space *mapping) { up_read(&mapping->i_mmap_rwsem); }

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/* * Might pages of this file be mapped into userspace? */
static inline int mapping_mapped(struct address_space *mapping) { return !RB_EMPTY_ROOT(&mapping->i_mmap); }

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/* * Might pages of this file have been modified in userspace? * Note that i_mmap_writable counts all VM_SHARED vmas: do_mmap_pgoff * marks vma as VM_SHARED if it is shared, and the file was opened for * writing i.e. vma may be mprotected writable even if now readonly. * * If i_mmap_writable is negative, no new writable mappings are allowed. You * can only deny writable mappings, if none exists right now. */
static inline int mapping_writably_mapped(struct address_space *mapping) { return atomic_read(&mapping->i_mmap_writable) > 0; }

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static inline int mapping_map_writable(struct address_space *mapping) { return atomic_inc_unless_negative(&mapping->i_mmap_writable) ? 0 : -EPERM; }

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static inline void mapping_unmap_writable(struct address_space *mapping) { atomic_dec(&mapping->i_mmap_writable); }

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static inline int mapping_deny_writable(struct address_space *mapping) { return atomic_dec_unless_positive(&mapping->i_mmap_writable) ? 0 : -EBUSY; }

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static inline void mapping_allow_writable(struct address_space *mapping) { atomic_inc(&mapping->i_mmap_writable); }

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/* * Use sequence counter to get consistent i_size on 32-bit processors. */ #if BITS_PER_LONG==32 && defined(CONFIG_SMP) #include <linux/seqlock.h> #define __NEED_I_SIZE_ORDERED #define i_size_ordered_init(inode) seqcount_init(&inode->i_size_seqcount) #else #define i_size_ordered_init(inode) do { } while (0) #endif struct posix_acl; #define ACL_NOT_CACHED ((void *)(-1))
static inline struct posix_acl * uncached_acl_sentinel(struct task_struct *task) { return (void *)task + 1; }

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static inline bool is_uncached_acl(struct posix_acl *acl) { return (long)acl & 1; }

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#define IOP_FASTPERM 0x0001 #define IOP_LOOKUP 0x0002 #define IOP_NOFOLLOW 0x0004 /* * Keep mostly read-only and often accessed (especially for * the RCU path lookup and 'stat' data) fields at the beginning * of the 'struct inode' */ struct inode { umode_t i_mode; unsigned short i_opflags; kuid_t i_uid; kgid_t i_gid; unsigned int i_flags; #ifdef CONFIG_FS_POSIX_ACL struct posix_acl *i_acl; struct posix_acl *i_default_acl; #endif const struct inode_operations *i_op; struct super_block *i_sb; struct address_space *i_mapping; #ifdef CONFIG_SECURITY void *i_security; #endif /* Stat data, not accessed from path walking */ unsigned long i_ino; /* * Filesystems may only read i_nlink directly. They shall use the * following functions for modification: * * (set|clear|inc|drop)_nlink * inode_(inc|dec)_link_count */ union { const unsigned int i_nlink; unsigned int __i_nlink; }; dev_t i_rdev; loff_t i_size; struct timespec i_atime; struct timespec i_mtime; struct timespec i_ctime; spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */ unsigned short i_bytes; unsigned int i_blkbits; blkcnt_t i_blocks; #ifdef __NEED_I_SIZE_ORDERED seqcount_t i_size_seqcount; #endif /* Misc */ unsigned long i_state; struct rw_semaphore i_rwsem; unsigned long dirtied_when; /* jiffies of first dirtying */ unsigned long dirtied_time_when; struct hlist_node i_hash; struct list_head i_io_list; /* backing dev IO list */ #ifdef CONFIG_CGROUP_WRITEBACK struct bdi_writeback *i_wb; /* the associated cgroup wb */ /* foreign inode detection, see wbc_detach_inode() */ int i_wb_frn_winner; u16 i_wb_frn_avg_time; u16 i_wb_frn_history; #endif struct list_head i_lru; /* inode LRU list */ struct list_head i_sb_list; union { struct hlist_head i_dentry; struct rcu_head i_rcu; }; u64 i_version; atomic_t i_count; atomic_t i_dio_count; atomic_t i_writecount; #ifdef CONFIG_IMA atomic_t i_readcount; /* struct files open RO */ #endif const struct file_operations *i_fop; /* former ->i_op->default_file_ops */ struct file_lock_context *i_flctx; struct address_space i_data; struct list_head i_devices; union { struct pipe_inode_info *i_pipe; struct block_device *i_bdev; struct cdev *i_cdev; char *i_link; unsigned i_dir_seq; }; __u32 i_generation; #ifdef CONFIG_FSNOTIFY __u32 i_fsnotify_mask; /* all events this inode cares about */ struct hlist_head i_fsnotify_marks; #endif #if IS_ENABLED(CONFIG_FS_ENCRYPTION) struct fscrypt_info *i_crypt_info; #endif void *i_private; /* fs or device private pointer */ };
static inline int inode_unhashed(struct inode *inode) { return hlist_unhashed(&inode->i_hash); }

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al viroal viro21100.00%1100.00%
Total21100.00%1100.00%

/* * inode->i_mutex nesting subclasses for the lock validator: * * 0: the object of the current VFS operation * 1: parent * 2: child/target * 3: xattr * 4: second non-directory * 5: second parent (when locking independent directories in rename) * * I_MUTEX_NONDIR2 is for certain operations (such as rename) which lock two * non-directories at once. * * The locking order between these classes is * parent[2] -> child -> grandchild -> normal -> xattr -> second non-directory */ enum inode_i_mutex_lock_class { I_MUTEX_NORMAL, I_MUTEX_PARENT, I_MUTEX_CHILD, I_MUTEX_XATTR, I_MUTEX_NONDIR2, I_MUTEX_PARENT2, };
static inline void inode_lock(struct inode *inode) { down_write(&inode->i_rwsem); }

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al viroal viro20100.00%2100.00%
Total20100.00%2100.00%


static inline void inode_unlock(struct inode *inode) { up_write(&inode->i_rwsem); }

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al viroal viro20100.00%2100.00%
Total20100.00%2100.00%


static inline void inode_lock_shared(struct inode *inode) { down_read(&inode->i_rwsem); }

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al viroal viro20100.00%1100.00%
Total20100.00%1100.00%


static inline void inode_unlock_shared(struct inode *inode) { up_read(&inode->i_rwsem); }

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al viroal viro20100.00%2100.00%
Total20100.00%2100.00%


static inline int inode_trylock(struct inode *inode) { return down_write_trylock(&inode->i_rwsem); }

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al viroal viro21100.00%2100.00%
Total21100.00%2100.00%


static inline int inode_trylock_shared(struct inode *inode) { return down_read_trylock(&inode->i_rwsem); }

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al viroal viro21100.00%2100.00%
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static inline int inode_is_locked(struct inode *inode) { return rwsem_is_locked(&inode->i_rwsem); }

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al viroal viro21100.00%2100.00%
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static inline void inode_lock_nested(struct inode *inode, unsigned subclass) { down_write_nested(&inode->i_rwsem, subclass); }

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al viroal viro25100.00%2100.00%
Total25100.00%2100.00%

void lock_two_nondirectories(struct inode *, struct inode*); void unlock_two_nondirectories(struct inode *, struct inode*); /* * NOTE: in a 32bit arch with a preemptable kernel and * an UP compile the i_size_read/write must be atomic * with respect to the local cpu (unlike with preempt disabled), * but they don't need to be atomic with respect to other cpus like in * true SMP (so they need either to either locally disable irq around * the read or for example on x86 they can be still implemented as a * cmpxchg8b without the need of the lock prefix). For SMP compiles * and 64bit archs it makes no difference if preempt is enabled or not. */
static inline loff_t i_size_read(const struct inode *inode) { #if BITS_PER_LONG==32 && defined(CONFIG_SMP) loff_t i_size; unsigned int seq; do { seq = read_seqcount_begin(&inode->i_size_seqcount); i_size = inode->i_size; } while (read_seqcount_retry(&inode->i_size_seqcount, seq)); return i_size; #elif BITS_PER_LONG==32 && defined(CONFIG_PREEMPT) loff_t i_size; preempt_disable(); i_size = inode->i_size; preempt_enable(); return i_size; #else return inode->i_size; #endif }

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andrew mortonandrew morton10199.02%150.00%
jan engelhardtjan engelhardt10.98%150.00%
Total102100.00%2100.00%

/* * NOTE: unlike i_size_read(), i_size_write() does need locking around it * (normally i_mutex), otherwise on 32bit/SMP an update of i_size_seqcount * can be lost, resulting in subsequent i_size_read() calls spinning forever. */
static inline void i_size_write(struct inode *inode, loff_t i_size) { #if BITS_PER_LONG==32 && defined(CONFIG_SMP) preempt_disable(); write_seqcount_begin(&inode->i_size_seqcount); inode->i_size = i_size; write_seqcount_end(&inode->i_size_seqcount); preempt_enable(); #elif BITS_PER_LONG==32 && defined(CONFIG_PREEMPT) preempt_disable(); inode->i_size = i_size; preempt_enable(); #else inode->i_size = i_size; #endif }

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andrew mortonandrew morton7992.94%150.00%
fan dufan du67.06%150.00%
Total85100.00%2100.00%

/* Helper functions so that in most cases filesystems will * not need to deal directly with kuid_t and kgid_t and can * instead deal with the raw numeric values that are stored * in the filesystem. */
static inline uid_t i_uid_read(const struct inode *inode) { return from_kuid(&init_user_ns, inode->i_uid); }

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eric w. biedermaneric w. biederman24100.00%1100.00%
Total24100.00%1100.00%


static inline gid_t i_gid_read(const struct inode *inode) { return from_kgid(&init_user_ns, inode->i_gid); }

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eric w. biedermaneric w. biederman24100.00%1100.00%
Total24100.00%1100.00%


static inline void i_uid_write(struct inode *inode, uid_t uid) { inode->i_uid = make_kuid(&init_user_ns, uid); }

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eric w. biedermaneric w. biederman27100.00%1100.00%
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static inline void i_gid_write(struct inode *inode, gid_t gid) { inode->i_gid = make_kgid(&init_user_ns, gid); }

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eric w. biedermaneric w. biederman27100.00%1100.00%
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static inline unsigned iminor(const struct inode *inode) { return MINOR(inode->i_rdev); }

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al viroal viro2095.24%266.67%
jan engelhardtjan engelhardt14.76%133.33%
Total21100.00%3100.00%


static inline unsigned imajor(const struct inode *inode) { return MAJOR(inode->i_rdev); }

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al viroal viro2095.24%266.67%
jan engelhardtjan engelhardt14.76%133.33%
Total21100.00%3100.00%

extern struct block_device *I_BDEV(struct inode *inode); struct fown_struct { rwlock_t lock; /* protects pid, uid, euid fields */ struct pid *pid; /* pid or -pgrp where SIGIO should be sent */ enum pid_type pid_type; /* Kind of process group SIGIO should be sent to */ kuid_t uid, euid; /* uid/euid of process setting the owner */ int signum; /* posix.1b rt signal to be delivered on IO */ }; /* * Track a single file's readahead state */ struct file_ra_state { pgoff_t start; /* where readahead started */ unsigned int size; /* # of readahead pages */ unsigned int async_size; /* do asynchronous readahead when there are only # of pages ahead */ unsigned int ra_pages; /* Maximum readahead window */ unsigned int mmap_miss; /* Cache miss stat for mmap accesses */ loff_t prev_pos; /* Cache last read() position */ }; /* * Check if @index falls in the readahead windows. */
static inline int ra_has_index(struct file_ra_state *ra, pgoff_t index) { return (index >= ra->start && index < ra->start + ra->size); }

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wu fengguangwu fengguang34100.00%2100.00%
Total34100.00%2100.00%

struct file { union { struct llist_node fu_llist; struct rcu_head fu_rcuhead; } f_u; struct path f_path; struct inode *f_inode; /* cached value */ const struct file_operations *f_op; /* * Protects f_ep_links, f_flags. * Must not be taken from IRQ context. */ spinlock_t f_lock; atomic_long_t f_count; unsigned int f_flags; fmode_t f_mode; struct mutex f_pos_lock; loff_t f_pos; struct fown_struct f_owner; const struct cred *f_cred; struct file_ra_state f_ra; u64 f_version; #ifdef CONFIG_SECURITY void *f_security; #endif /* needed for tty driver, and maybe others */ void *private_data; #ifdef CONFIG_EPOLL /* Used by fs/eventpoll.c to link all the hooks to this file */ struct list_head f_ep_links; struct list_head f_tfile_llink; #endif /* #ifdef CONFIG_EPOLL */ struct address_space *f_mapping; } __attribute__((aligned(4))); /* lest something weird decides that 2 is OK */ struct file_handle { __u32 handle_bytes; int handle_type; /* file identifier */ unsigned char f_handle[0]; };
static inline struct file *get_file(struct file *f) { atomic_long_inc(&f->f_count); return f; }

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al viroal viro2288.00%150.00%
pre-gitpre-git312.00%150.00%
Total25100.00%2100.00%

#define get_file_rcu(x) atomic_long_inc_not_zero(&(x)->f_count) #define fput_atomic(x) atomic_long_add_unless(&(x)->f_count, -1, 1) #define file_count(x) atomic_long_read(&(x)->f_count) #define MAX_NON_LFS ((1UL<<31) - 1) /* Page cache limit. The filesystems should put that into their s_maxbytes limits, otherwise bad things can happen in VM. */ #if BITS_PER_LONG==32 #define MAX_LFS_FILESIZE (((loff_t)PAGE_SIZE << (BITS_PER_LONG-1))-1) #elif BITS_PER_LONG==64 #define MAX_LFS_FILESIZE ((loff_t)0x7fffffffffffffffLL) #endif #define FL_POSIX 1 #define FL_FLOCK 2 #define FL_DELEG 4 /* NFSv4 delegation */ #define FL_ACCESS 8 /* not trying to lock, just looking */ #define FL_EXISTS 16 /* when unlocking, test for existence */ #define FL_LEASE 32 /* lease held on this file */ #define FL_CLOSE 64 /* unlock on close */ #define FL_SLEEP 128 /* A blocking lock */ #define FL_DOWNGRADE_PENDING 256 /* Lease is being downgraded */ #define FL_UNLOCK_PENDING 512 /* Lease is being broken */ #define FL_OFDLCK 1024 /* lock is "owned" by struct file */ #define FL_LAYOUT 2048 /* outstanding pNFS layout */ /* * Special return value from posix_lock_file() and vfs_lock_file() for * asynchronous locking. */ #define FILE_LOCK_DEFERRED 1 /* legacy typedef, should eventually be removed */ typedef void *fl_owner_t; struct file_lock; struct file_lock_operations { void (*fl_copy_lock)(struct file_lock *, struct file_lock *); void (*fl_release_private)(struct file_lock *); }; struct lock_manager_operations { int (*lm_compare_owner)(struct file_lock *, struct file_lock *); unsigned long (*lm_owner_key)(struct file_lock *); fl_owner_t (*lm_get_owner)(fl_owner_t); void (*lm_put_owner)(fl_owner_t); void (*lm_notify)(struct file_lock *); /* unblock callback */ int (*lm_grant)(struct file_lock *, int); bool (*lm_break)(struct file_lock *); int (*lm_change)(struct file_lock *, int, struct list_head *); void (*lm_setup)(struct file_lock *, void **); }; struct lock_manager { struct list_head list; /* * NFSv4 and up also want opens blocked during the grace period; * NLM doesn't care: */ bool block_opens; }; struct net; void locks_start_grace(struct net *, struct lock_manager *); void locks_end_grace(struct lock_manager *); int locks_in_grace(struct net *); int opens_in_grace(struct net *); /* that will die - we need it for nfs_lock_info */ #include <linux/nfs_fs_i.h> /* * struct file_lock represents a generic "file lock". It's used to represent * POSIX byte range locks, BSD (flock) locks, and leases. It's important to * note that the same struct is used to represent both a request for a lock and * the lock itself, but the same object is never used for both. * * FIXME: should we create a separate "struct lock_request" to help distinguish * these two uses? * * The varous i_flctx lists are ordered by: * * 1) lock owner * 2) lock range start * 3) lock range end * * Obviously, the last two criteria only matter for POSIX locks. */ struct file_lock { struct file_lock *fl_next; /* singly linked list for this inode */ struct list_head fl_list; /* link into file_lock_context */ struct hlist_node fl_link; /* node in global lists */ struct list_head fl_block; /* circular list of blocked processes */ fl_owner_t fl_owner; unsigned int fl_flags; unsigned char fl_type; unsigned int fl_pid; int fl_link_cpu; /* what cpu's list is this on? */ struct pid *fl_nspid; wait_queue_head_t fl_wait; struct file *fl_file; loff_t fl_start; loff_t fl_end; struct fasync_struct * fl_fasync; /* for lease break notifications */ /* for lease breaks: */ unsigned long fl_break_time; unsigned long fl_downgrade_time; const struct file_lock_operations *fl_ops; /* Callbacks for filesystems */ const struct lock_manager_operations *fl_lmops; /* Callbacks for lockmanagers */ union { struct nfs_lock_info nfs_fl; struct nfs4_lock_info nfs4_fl; struct { struct list_head link; /* link in AFS vnode's pending_locks list */ int state; /* state of grant or error if -ve */ } afs; } fl_u; }; struct file_lock_context { spinlock_t flc_lock; struct list_head flc_flock; struct list_head flc_posix; struct list_head flc_lease; }; /* The following constant reflects the upper bound of the file/locking space */ #ifndef OFFSET_MAX #define INT_LIMIT(x) (~((x)1 << (sizeof(x)*8 - 1))) #define OFFSET_MAX INT_LIMIT(loff_t) #define OFFT_OFFSET_MAX INT_LIMIT(off_t) #endif #include <linux/fcntl.h> extern void send_sigio(struct fown_struct *fown, int fd, int band); #ifdef CONFIG_FILE_LOCKING extern int fcntl_getlk(struct file *, unsigned int, struct flock __user *); extern int fcntl_setlk(unsigned int, struct file *, unsigned int, struct flock __user *); #if BITS_PER_LONG == 32 extern int fcntl_getlk64(struct file *, unsigned int, struct flock64 __user *); extern int fcntl_setlk64(unsigned int, struct file *, unsigned int, struct flock64 __user *); #endif extern int fcntl_setlease(unsigned int fd, struct file *filp, long arg); extern int fcntl_getlease(struct file *filp); /* fs/locks.c */ void locks_free_lock_context(struct inode *inode); void locks_free_lock(struct file_lock *fl); extern void locks_init_lock(struct file_lock *); extern struct file_lock * locks_alloc_lock(void); extern void locks_copy_lock(struct file_lock *, struct file_lock *); extern void locks_copy_conflock(struct file_lock *, struct file_lock *); extern void locks_remove_posix(struct file *, fl_owner_t); extern void locks_remove_file(struct file *); extern void locks_release_private(struct file_lock *); extern void posix_test_lock(struct file *, struct file_lock *); extern int posix_lock_file(struct file *, struct file_lock *, struct file_lock *); extern int posix_unblock_lock(struct file_lock *); extern int vfs_test_lock(struct file *, struct file_lock *); extern int vfs_lock_file(struct file *, unsigned int, struct file_lock *, struct file_lock *); extern int vfs_cancel_lock(struct file *filp, struct file_lock *fl); extern int locks_lock_inode_wait(struct inode *inode, struct file_lock *fl); extern int __break_lease(struct inode *inode, unsigned int flags, unsigned int type); extern void lease_get_mtime(struct inode *, struct timespec *time); extern int generic_setlease(struct file *, long, struct file_lock **, void **priv); extern int vfs_setlease(struct file *, long, struct file_lock **, void **); extern int lease_modify(struct file_lock *, int, struct list_head *); struct files_struct; extern void show_fd_locks(struct seq_file *f, struct file *filp, struct files_struct *files); #else /* !CONFIG_FILE_LOCKING */
static inline int fcntl_getlk(struct file *file, unsigned int cmd, struct flock __user *user) { return -EINVAL; }

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steven whitehousesteven whitehouse1869.23%133.33%
jeff laytonjeff layton415.38%133.33%
thomas petazzonithomas petazzoni415.38%133.33%
Total26100.00%3100.00%


static inline int fcntl_setlk(unsigned int fd, struct file *file, unsigned int cmd, struct flock __user *user) { return -EACCES; }

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steven whitehousesteven whitehouse2480.00%150.00%
thomas petazzonithomas petazzoni620.00%150.00%
Total30100.00%2100.00%

#if BITS_PER_LONG == 32
static inline int fcntl_getlk64(struct file *file, unsigned int cmd, struct flock64 __user *user) { return -EINVAL; }

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steven whitehousesteven whitehouse1869.23%133.33%
jeff laytonjeff layton415.38%133.33%
thomas petazzonithomas petazzoni415.38%133.33%
Total26100.00%3100.00%


static inline int fcntl_setlk64(unsigned int fd, struct file *file, unsigned int cmd, struct flock64 __user *user) { return -EACCES; }

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steven whitehousesteven whitehouse2480.00%150.00%
thomas petazzonithomas petazzoni620.00%150.00%
Total30100.00%2100.00%

#endif
static inline int fcntl_setlease(unsigned int fd, struct file *filp, long arg) { return -EINVAL; }

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steven whitehousesteven whitehouse1669.57%133.33%
thomas petazzonithomas petazzoni521.74%133.33%
jeff laytonjeff layton28.70%133.33%
Total23100.00%3100.00%


static inline int fcntl_getlease(struct file *filp) { return F_UNLCK; }

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steven whitehousesteven whitehouse1173.33%133.33%
thomas petazzonithomas petazzoni320.00%133.33%
jeff laytonjeff layton16.67%133.33%
Total15100.00%3100.00%


static inline void locks_free_lock_context(struct inode *inode) { }

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jeff laytonjeff layton11100.00%2100.00%
Total11100.00%2100.00%


static inline void locks_init_lock(struct file_lock *fl) { return; }

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steven whitehousesteven whitehouse1076.92%150.00%
thomas petazzonithomas petazzoni323.08%150.00%
Total13100.00%2100.00%


static inline void locks_copy_conflock(struct file_lock *new, struct file_lock *fl) { return; }

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steven whitehousesteven whitehouse1477.78%133.33%
thomas petazzonithomas petazzoni316.67%133.33%
kinglong meekinglong mee15.56%133.33%
Total18100.00%3100.00%


static inline void locks_copy_lock(struct file_lock *new, struct file_lock *fl) { return; }

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steven whitehousesteven whitehouse1477.78%150.00%
thomas petazzonithomas petazzoni422.22%150.00%
Total18100.00%2100.00%


static inline void locks_remove_posix(struct file *filp, fl_owner_t owner) { return; }

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steven whitehousesteven whitehouse1275.00%150.00%
thomas petazzonithomas petazzoni425.00%150.00%
Total16100.00%2100.00%


static inline void locks_remove_file(struct file *filp) { return; }

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steven whitehousesteven whitehouse1076.92%133.33%
thomas petazzonithomas petazzoni215.38%133.33%
jeff laytonjeff layton17.69%133.33%
Total13100.00%3100.00%


static inline void posix_test_lock(struct file *filp, struct file_lock *fl) { return; }

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steven whitehousesteven whitehouse1477.78%150.00%
thomas petazzonithomas petazzoni422.22%150.00%
Total18100.00%2100.00%


static inline int posix_lock_file(struct file *filp, struct file_lock *fl, struct file_lock *conflock) { return -ENOLCK; }

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steven whitehousesteven whitehouse2388.46%150.00%
thomas petazzonithomas petazzoni311.54%150.00%
Total26100.00%2100.00%


static inline int posix_unblock_lock(struct file_lock *waiter) { return -ENOENT; }

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steven whitehousesteven whitehouse1381.25%150.00%
thomas petazzonithomas petazzoni318.75%150.00%
Total16100.00%2100.00%


static inline int vfs_test_lock(struct file *filp, struct file_lock *fl) { return 0; }

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steven whitehousesteven whitehouse1680.00%150.00%
thomas petazzonithomas petazzoni420.00%150.00%
Total20100.00%2100.00%


static inline int vfs_lock_file(struct file *filp, unsigned int cmd, struct file_lock *fl, struct file_lock *conf) { return -ENOLCK; }

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steven whitehousesteven whitehouse2480.00%150.00%
thomas petazzonithomas petazzoni620.00%150.00%
Total30100.00%2100.00%


static inline int vfs_cancel_lock(struct file *filp, struct file_lock *fl) { return 0; }

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steven whitehousesteven whitehouse1680.00%150.00%
thomas petazzonithomas petazzoni420.00%150.00%
Total20100.00%2100.00%


static inline int locks_lock_inode_wait(struct inode *inode, struct file_lock *fl) { return -ENOLCK; }

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benjamin coddingtonbenjamin coddington21100.00%1100.00%
Total21100.00%1100.00%


static inline int __break_lease(struct inode *inode, unsigned int mode, unsigned int type) { return 0; }

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steven whitehousesteven whitehouse1565.22%133.33%
j. bruce fieldsj. bruce fields417.39%133.33%
thomas petazzonithomas petazzoni417.39%133.33%
Total23100.00%3100.00%


static inline void lease_get_mtime(struct inode *inode, struct timespec *time) { return; }

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steven whitehousesteven whitehouse1477.78%150.00%
thomas petazzonithomas petazzoni422.22%150.00%
Total18100.00%2100.00%


static inline int generic_setlease(struct file *filp, long arg, struct file_lock **flp, void **priv) { return -EINVAL; }

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steven whitehousesteven whitehouse2066.67%133.33%
jeff laytonjeff layton516.67%133.33%
thomas petazzonithomas petazzoni516.67%133.33%
Total30100.00%3100.00%


static inline int vfs_setlease(struct file *filp, long arg, struct file_lock **lease, void **priv) { return -EINVAL; }

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steven whitehousesteven whitehouse2066.67%133.33%
thomas petazzonithomas petazzoni516.67%133.33%
jeff laytonjeff layton516.67%133.33%
Total30100.00%3100.00%


static inline int lease_modify(struct file_lock *fl, int arg, struct list_head *dispose) { return -EINVAL; }

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steven whitehousesteven whitehouse1458.33%125.00%
jeff laytonjeff layton625.00%250.00%
thomas petazzonithomas petazzoni416.67%125.00%
Total24100.00%4100.00%

struct files_struct;
static inline void show_fd_locks(struct seq_file *f, struct file *filp, struct files_struct *files) {}

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andrey vaginandrey vagin21100.00%1100.00%
Total21100.00%1100.00%

#endif /* !CONFIG_FILE_LOCKING */
static inline struct inode *file_inode(const struct file *f) { return f->f_inode; }

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jeff laytonjeff layton20100.00%1100.00%
Total20100.00%1100.00%


static inline struct dentry *file_dentry(const struct file *file) { struct dentry *dentry = file->f_path.dentry; if (unlikely(dentry->d_flags & DCACHE_OP_REAL)) return dentry->d_op->d_real(dentry, file_inode(file)); else return dentry; }

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miklos szeredimiklos szeredi56100.00%1100.00%
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static inline int locks_lock_file_wait(struct file *filp, struct file_lock *fl) { return locks_lock_inode_wait(file_inode(filp), fl); }

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benjamin coddingtonbenjamin coddington28100.00%1100.00%
Total28100.00%1100.00%

struct fasync_struct { spinlock_t fa_lock; int magic; int fa_fd; struct fasync_struct *fa_next; /* singly linked list */ struct file *fa_file; struct rcu_head fa_rcu; }; #define FASYNC_MAGIC 0x4601 /* SMP safe fasync helpers: */ extern int fasync_helper(int, struct file *, int, struct fasync_struct **); extern struct fasync_struct *fasync_insert_entry(int, struct file *, struct fasync_struct **, struct fasync_struct *); extern int fasync_remove_entry(struct file *, struct fasync_struct **); extern struct fasync_struct *fasync_alloc(void); extern void fasync_free(struct fasync_struct *); /* can be called from interrupts */ extern void kill_fasync(struct fasync_struct **, int, int); extern void __f_setown(struct file *filp, struct pid *, enum pid_type, int force); extern void f_setown(struct file *filp, unsigned long arg, int force); extern void f_delown(struct file *filp); extern pid_t f_getown(struct file *filp); extern int send_sigurg(struct fown_struct *fown); struct mm_struct; /* * Umount options */ #define MNT_FORCE 0x00000001 /* Attempt to forcibily umount */ #define MNT_DETACH 0x00000002 /* Just detach from the tree */ #define MNT_EXPIRE 0x00000004 /* Mark for expiry */ #define UMOUNT_NOFOLLOW 0x00000008 /* Don't follow symlink on umount */ #define UMOUNT_UNUSED 0x80000000 /* Flag guaranteed to be unused */ /* sb->s_iflags */ #define SB_I_CGROUPWB 0x00000001 /* cgroup-aware writeback enabled */ #define SB_I_NOEXEC 0x00000002 /* Ignore executables on this fs */ /* Possible states of 'frozen' field */ enum { SB_UNFROZEN = 0, /* FS is unfrozen */ SB_FREEZE_WRITE = 1, /* Writes, dir ops, ioctls frozen */ SB_FREEZE_PAGEFAULT = 2, /* Page faults stopped as well */ SB_FREEZE_FS = 3, /* For internal FS use (e.g. to stop * internal threads if needed) */ SB_FREEZE_COMPLETE = 4, /* ->freeze_fs finished successfully */ }; #define SB_FREEZE_LEVELS (SB_FREEZE_COMPLETE - 1) struct sb_writers { int frozen; /* Is sb frozen? */ wait_queue_head_t wait_unfrozen; /* for get_super_thawed() */ struct percpu_rw_semaphore rw_sem[SB_FREEZE_LEVELS]; }; struct super_block { struct list_head s_list; /* Keep this first */ dev_t s_dev; /* search index; _not_ kdev_t */ unsigned char s_blocksize_bits; unsigned long s_blocksize; loff_t s_maxbytes; /* Max file size */ struct file_system_type *s_type; const struct super_operations *s_op; const struct dquot_operations *dq_op; const struct quotactl_ops *s_qcop; const struct export_operations *s_export_op; unsigned long s_flags; unsigned long s_iflags; /* internal SB_I_* flags */ unsigned long s_magic; struct dentry *s_root; struct rw_semaphore s_umount; int s_count; atomic_t s_active; #ifdef CONFIG_SECURITY void *s_security; #endif const struct xattr_handler **s_xattr; const struct fscrypt_operations *s_cop; struct hlist_bl_head s_anon; /* anonymous dentries for (nfs) exporting */ struct list_head s_mounts; /* list of mounts; _not_ for fs use */ struct block_device *s_bdev; struct backing_dev_info *s_bdi; struct mtd_info *s_mtd; struct hlist_node s_instances; unsigned int s_quota_types; /* Bitmask of supported quota types */ struct quota_info s_dquot; /* Diskquota specific options */ struct sb_writers s_writers; char s_id[32]; /* Informational name */ u8 s_uuid[16]; /* UUID */ void *s_fs_info; /* Filesystem private info */ unsigned int s_max_links; fmode_t s_mode; /* Granularity of c/m/atime in ns. Cannot be worse than a second */ u32 s_time_gran; /* * The next field is for VFS *only*. No filesystems have any business * even looking at it. You had been warned. */ struct mutex s_vfs_rename_mutex; /* Kludge */ /* * Filesystem subtype. If non-empty the filesystem type field * in /proc/mounts will be "type.subtype" */ char *s_subtype; /* * Saved mount options for lazy filesystems using * generic_show_options() */ char __rcu *s_options; const struct dentry_operations *s_d_op; /* default d_op for dentries */ /* * Saved pool identifier for cleancache (-1 means none) */ int cleancache_poolid; struct shrinker s_shrink; /* per-sb shrinker handle */ /* Number of inodes with nlink == 0 but still referenced */ atomic_long_t s_remove_count; /* Being remounted read-only */ int s_readonly_remount; /* AIO completions deferred from interrupt context */ struct workqueue_struct *s_dio_done_wq; struct hlist_head s_pins; /* * Keep the lru lists last in the structure so they always sit on their * own individual cachelines. */ struct list_lru s_dentry_lru ____cacheline_aligned_in_smp; struct list_lru s_inode_lru ____cacheline_aligned_in_smp; struct rcu_head rcu; struct work_struct destroy_work; struct mutex s_sync_lock; /* sync serialisation lock */ /* * Indicates how deep in a filesystem stack this SB is */ int s_stack_depth; /* s_inode_list_lock protects s_inodes */ spinlock_t s_inode_list_lock ____cacheline_aligned_in_smp; struct list_head s_inodes; /* all inodes */ }; extern struct timespec current_fs_time(struct super_block *sb); /* * Snapshotting support. */ void __sb_end_write(struct super_block *sb, int level); int __sb_start_write(struct super_block *sb, int level, bool wait); #define __sb_writers_acquired(sb, lev) \ percpu_rwsem_acquire(&(sb)->s_writers.rw_sem[(lev)-1], 1, _THIS_IP_) #define __sb_writers_release(sb, lev) \ percpu_rwsem_release(&(sb)->s_writers.rw_sem[(lev)-1], 1, _THIS_IP_) /** * sb_end_write - drop write access to a superblock * @sb: the super we wrote to * * Decrement number of writers to the filesystem. Wake up possible waiters * wanting to freeze the filesystem. */
static inline void sb_end_write(struct super_block *sb) { __sb_end_write(sb, SB_FREEZE_WRITE); }

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jan karajan kara19100.00%1100.00%
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/** * sb_end_pagefault - drop write access to a superblock from a page fault * @sb: the super we wrote to * * Decrement number of processes handling write page fault to the filesystem. * Wake up possible waiters wanting to freeze the filesystem. */
static inline void sb_end_pagefault(struct super_block *sb) { __sb_end_write(sb, SB_FREEZE_PAGEFAULT); }

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jan karajan kara19100.00%1100.00%
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/** * sb_end_intwrite - drop write access to a superblock for internal fs purposes * @sb: the super we wrote to * * Decrement fs-internal number of writers to the filesystem. Wake up possible * waiters wanting to freeze the filesystem. */
static inline void sb_end_intwrite(struct super_block *sb) { __sb_end_write(sb, SB_FREEZE_FS); }

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jan karajan kara19100.00%1100.00%
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/** * sb_start_write - get write access to a superblock * @sb: the super we write to * * When a process wants to write data or metadata to a file system (i.e. dirty * a page or an inode), it should embed the operation in a sb_start_write() - * sb_end_write() pair to get exclusion against file system freezing. This * function increments number of writers preventing freezing. If the file * system is already frozen, the function waits until the file system is * thawed. * * Since freeze protection behaves as a lock, users have to preserve * ordering of freeze protection and other filesystem locks. Generally, * freeze protection should be the outermost lock. In particular, we have: * * sb_start_write * -> i_mutex (write path, truncate, directory ops, ...) * -> s_umount (freeze_super, thaw_super) */
static inline void sb_start_write(struct super_block *sb) { __sb_start_write(sb, SB_FREEZE_WRITE, true); }

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jan karajan kara21100.00%1100.00%
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static inline int sb_start_write_trylock(struct super_block *sb) { return __sb_start_write(sb, SB_FREEZE_WRITE, false); }

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jan karajan kara22100.00%1100.00%
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/** * sb_start_pagefault - get write access to a superblock from a page fault * @sb: the super we write to * * When a process starts handling write page fault, it should embed the * operation into sb_start_pagefault() - sb_end_pagefault() pair to get * exclusion against file system freezing. This is needed since the page fault * is going to dirty a page. This function increments number of running page * faults preventing freezing. If the file system is already frozen, the * function waits until the file system is thawed. * * Since page fault freeze protection behaves as a lock, users have to preserve * ordering of freeze protection and other filesystem locks. It is advised to * put sb_start_pagefault() close to mmap_sem in lock ordering. Page fault * handling code implies lock dependency: * * mmap_sem * -> sb_start_pagefault */
static inline void sb_start_pagefault(struct super_block *sb) { __sb_start_write(sb, SB_FREEZE_PAGEFAULT, true); }

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jan karajan kara21100.00%1100.00%
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/* * sb_start_intwrite - get write access to a superblock for internal fs purposes * @sb: the super we write to * * This is the third level of protection against filesystem freezing. It is * free for use by a filesystem. The only requirement is that it must rank * below sb_start_pagefault. * * For example filesystem can call sb_start_intwrite() when starting a * transaction which somewhat eases handling of freezing for internal sources * of filesystem changes (internal fs threads, discarding preallocation on file * close, etc.). */
static inline void sb_start_intwrite(struct super_block *sb) { __sb_start_write(sb, SB_FREEZE_FS, true); }

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jan karajan kara21100.00%1100.00%
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extern bool inode_owner_or_capable(const struct inode *inode); /* * VFS helper functions.. */ extern int vfs_create(struct inode *, struct dentry *, umode_t, bool); extern int vfs_mkdir(struct inode *, struct dentry *, umode_t); extern int vfs_mknod(struct inode *, struct dentry *, umode_t, dev_t); extern int vfs_symlink(struct inode *, struct dentry *, const char *); extern int vfs_link(struct dentry *, struct inode *, struct dentry *, struct inode **); extern int vfs_rmdir(struct inode *, struct dentry *); extern int vfs_unlink(struct inode *, struct dentry *, struct inode **); extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *, struct inode **, unsigned int); extern int vfs_whiteout(struct inode *, struct dentry *); /* * VFS file helper functions. */ extern void inode_init_owner(struct inode *inode, const struct inode *dir, umode_t mode); /* * VFS FS_IOC_FIEMAP helper definitions. */ struct fiemap_extent_info { unsigned int fi_flags; /* Flags as passed from user */ unsigned int fi_extents_mapped; /* Number of mapped extents */ unsigned int fi_extents_max; /* Size of fiemap_extent array */ struct fiemap_extent __user *fi_extents_start; /* Start of fiemap_extent array */ }; int fiemap_fill_next_extent(struct fiemap_extent_info *info, u64 logical, u64 phys, u64 len, u32 flags); int fiemap_check_flags(struct fiemap_extent_info *fieinfo, u32 fs_flags); /* * File types * * NOTE! These match bits 12..15 of stat.st_mode * (ie "(i_mode >> 12) & 15"). */ #define DT_UNKNOWN 0 #define DT_FIFO 1 #define DT_CHR 2 #define DT_DIR 4 #define DT_BLK 6 #define DT_REG 8 #define DT_LNK 10 #define DT_SOCK 12 #define DT_WHT 14 /* * This is the "filldir" function type, used by readdir() to let * the kernel specify what kind of dirent layout it wants to have. * This allows the kernel to read directories into kernel space or * to have different dirent layouts depending on the binary type. */ struct dir_context; typedef int (*filldir_t)(struct dir_context *, const char *, int, loff_t, u64, unsigned); struct dir_context { const filldir_t actor; loff_t pos; }; struct block_device_operations; /* These macros are for out of kernel modules to test that * the kernel supports the unlocked_ioctl and compat_ioctl * fields in struct file_operations. */ #define HAVE_COMPAT_IOCTL 1 #define HAVE_UNLOCKED_IOCTL 1 /* * These flags let !MMU mmap() govern direct device mapping vs immediate * copying more easily for MAP_PRIVATE, especially for ROM filesystems. * * NOMMU_MAP_COPY: Copy can be mapped (MAP_PRIVATE) * NOMMU_MAP_DIRECT: Can be mapped directly (MAP_SHARED) * NOMMU_MAP_READ: Can be mapped for reading * NOMMU_MAP_WRITE: Can be mapped for writing * NOMMU_MAP_EXEC: Can be mapped for execution */ #define NOMMU_MAP_COPY 0x00000001 #define NOMMU_MAP_DIRECT 0x00000008 #define NOMMU_MAP_READ VM_MAYREAD #define NOMMU_MAP_WRITE VM_MAYWRITE #define NOMMU_MAP_EXEC VM_MAYEXEC #define NOMMU_VMFLAGS \ (NOMMU_MAP_READ | NOMMU_MAP_WRITE | NOMMU_MAP_EXEC) struct iov_iter; struct file_operations { struct module *owner; loff_t (*llseek) (struct file *, loff_t, int); ssize_t (*read) (struct file *, char __user *, size_t, loff_t *); ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *); ssize_t (*read_iter) (struct kiocb *, struct iov_iter *); ssize_t (*write_iter) (struct kiocb *, struct iov_iter *); int (*iterate) (struct file *, struct dir_context *); int (*iterate_shared) (struct file *, struct dir_context *); unsigned int (*poll) (struct file *, struct poll_table_struct *); long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); long (*compat_ioctl) (struct file *, unsigned int, unsigned long); int (*mmap) (struct file *, struct vm_area_struct *); int (*open) (struct inode *, struct file *); int (*flush) (struct file *, fl_owner_t id); int (*release) (struct inode *, struct file *); int (*fsync) (struct file *, loff_t, loff_t, int datasync); int (*aio_fsync) (struct kiocb *, int datasync); int (*fasync) (int, struct file *, int); int (*lock) (struct file *, int, struct file_lock *); ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int); unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long); int (*check_flags)(int); int (*flock) (struct file *, int, struct file_lock *); ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int); ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int); int (*setlease)(struct file *, long, struct file_lock **, void **); long (*fallocate)(struct file *file, int mode, loff_t offset, loff_t len); void (*show_fdinfo)(struct seq_file *m, struct file *f); #ifndef CONFIG_MMU unsigned (*mmap_capabilities)(struct file *); #endif ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int); int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64); ssize_t (*dedupe_file_range)(struct file *, u64, u64, struct file *, u64); }; struct inode_operations { struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int); const char * (*get_link) (struct dentry *, struct inode *, struct delayed_call *); int (*permission) (struct inode *, int); struct posix_acl * (*get_acl)(struct inode *, int); int (*readlink) (struct dentry *, char __user *,int); int (*create) (struct inode *,struct dentry *, umode_t, bool); int (*link) (struct dentry *,struct inode *,struct dentry *); int (*unlink) (struct inode *,struct dentry *); int (*symlink) (struct inode *,struct dentry *,const char *); int (*mkdir) (struct inode *,struct dentry *,umode_t); int (*rmdir) (struct inode *,struct dentry *); int (*mknod) (struct inode *,struct dentry *,umode_t,dev_t); int (*rename) (struct inode *, struct dentry *, struct inode *, struct dentry *); int (*rename2) (struct inode *, struct dentry *, struct inode *, struct dentry *, unsigned int); int (*setattr) (struct dentry *, struct iattr *); int (*getattr) (struct vfsmount *mnt, struct dentry *, struct kstat *); int (*setxattr) (struct dentry *, struct inode *, const char *, const void *, size_t, int); ssize_t (*getxattr) (struct dentry *, struct inode *, const char *, void *, size_t); ssize_t (*listxattr) (struct dentry *, char *, size_t); int (*removexattr) (struct dentry *, const char *); int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, u64 len); int (*update_time)(struct inode *, struct timespec *, int); int (*atomic_open)(struct inode *, struct dentry *, struct file *, unsigned open_flag, umode_t create_mode, int *opened); int (*tmpfile) (struct inode *, struct dentry *, umode_t); int (*set_acl)(struct inode *, struct posix_acl *, int); } ____cacheline_aligned; ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector, unsigned long nr_segs, unsigned long fast_segs, struct iovec *fast_pointer, struct iovec **ret_pointer); extern ssize_t __vfs_read(struct file *, char __user *, size_t, loff_t *); extern ssize_t __vfs_write(struct file *, const char __user *, size_t, loff_t *); extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *); extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *); extern ssize_t vfs_readv(struct file *, const struct iovec __user *, unsigned long, loff_t *, int); extern ssize_t vfs_writev(struct file *, const struct iovec __user *, unsigned long, loff_t *, int); extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *, loff_t, size_t, unsigned int); extern int vfs_clone_file_range(struct file *file_in, loff_t pos_in, struct file *file_out, loff_t pos_out, u64 len); extern int vfs_dedupe_file_range(struct file *file, struct file_dedupe_range *same); struct super_operations { struct inode *(*alloc_inode)(struct super_block *sb); void (*destroy_inode)(struct inode *); void (*dirty_inode) (struct inode *, int flags); int (*write_inode) (struct inode *, struct writeback_control *wbc); int (*drop_inode) (struct inode *); void (*evict_inode) (struct inode *); void (*put_super) (struct super_block *); int (*sync_fs)(struct super_block *sb, int wait); int (*freeze_super) (struct super_block *); int (*freeze_fs) (struct super_block *); int (*thaw_super) (struct super_block *); int (*unfreeze_fs) (struct super_block *); int (*statfs) (struct dentry *, struct kstatfs *); int (*remount_fs) (struct super_block *, int *, char *); void (*umount_begin) (struct super_block *); int (*show_options)(struct seq_file *, struct dentry *); int (*show_devname)(struct seq_file *, struct dentry *); int (*show_path)(struct seq_file *, struct dentry *); int (*show_stats)(struct seq_file *, struct dentry *); #ifdef CONFIG_QUOTA ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t); ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t); struct dquot **(*get_dquots)(struct inode *); #endif int (*bdev_try_to_free_page)(struct super_block*, struct page*, gfp_t); long (*nr_cached_objects)(struct super_block *, struct shrink_control *); long (*free_cached_objects)(struct super_block *, struct shrink_control *); }; /* * Inode flags - they have no relation to superblock flags now */ #define S_SYNC 1 /* Writes are synced at once */ #define S_NOATIME 2 /* Do not update access times */ #define S_APPEND 4 /* Append-only file */ #define S_IMMUTABLE 8 /* Immutable file */ #define S_DEAD 16 /* removed, but still open directory */ #define S_NOQUOTA 32 /* Inode is not counted to quota */ #define S_DIRSYNC 64 /* Directory modifications are synchronous */ #define S_NOCMTIME 128 /* Do not update file c/mtime */ #define S_SWAPFILE 256 /* Do not truncate: swapon got its bmaps */ #define S_PRIVATE 512 /* Inode is fs-internal */ #define S_IMA 1024 /* Inode has an associated IMA struct */ #define S_AUTOMOUNT 2048 /* Automount/referral quasi-directory */ #define S_NOSEC 4096 /* no suid or xattr security attributes */ #ifdef CONFIG_FS_DAX #define S_DAX 8192 /* Direct Access, avoiding the page cache */ #else #define S_DAX 0 /* Make all the DAX code disappear */ #endif /* * Note that nosuid etc flags are inode-specific: setting some file-system * flags just means all the inodes inherit those flags by default. It might be * possible to override it selectively if you really wanted to with some * ioctl() that is not currently implemented. * * Exception: MS_RDONLY is always applied to the entire file system. * * Unfortunately, it is possible to change a filesystems flags with it mounted * with files in use. This means that all of the inodes will not have their * i_flags updated. Hence, i_flags no longer inherit the superblock mount * flags, so these have to be checked separately. -- rmk@arm.uk.linux.org */ #define __IS_FLG(inode, flg) ((inode)->i_sb->s_flags & (flg)) #define IS_RDONLY(inode) ((inode)->i_sb->s_flags & MS_RDONLY) #define IS_SYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS) || \ ((inode)->i_flags & S_SYNC)) #define IS_DIRSYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \ ((inode)->i_flags & (S_SYNC|S_DIRSYNC))) #define IS_MANDLOCK(inode) __IS_FLG(inode, MS_MANDLOCK) #define IS_NOATIME(inode) __IS_FLG(inode, MS_RDONLY|MS_NOATIME) #define IS_I_VERSION(inode) __IS_FLG(inode, MS_I_VERSION) #define IS_NOQUOTA(inode) ((inode)->i_flags & S_NOQUOTA) #define IS_APPEND(inode) ((inode)->i_flags & S_APPEND) #define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE) #define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL) #define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD) #define IS_NOCMTIME(inode) ((inode)->i_flags & S_NOCMTIME) #define IS_SWAPFILE(inode) ((inode)->i_flags & S_SWAPFILE) #define IS_PRIVATE(inode) ((inode)->i_flags & S_PRIVATE) #define IS_IMA(inode) ((inode)->i_flags & S_IMA) #define IS_AUTOMOUNT(inode) ((inode)->i_flags & S_AUTOMOUNT) #define IS_NOSEC(inode) ((inode)->i_flags & S_NOSEC) #define IS_DAX(inode) ((inode)->i_flags & S_DAX) #define IS_WHITEOUT(inode) (S_ISCHR(inode->i_mode) && \ (inode)->i_rdev == WHITEOUT_DEV) /* * Inode state bits. Protected by inode->i_lock * * Three bits determine the dirty state of the inode, I_DIRTY_SYNC, * I_DIRTY_DATASYNC and I_DIRTY_PAGES. * * Four bits define the lifetime of an inode. Initially, inodes are I_NEW, * until that flag is cleared. I_WILL_FREE, I_FREEING and I_CLEAR are set at * various stages of removing an inode. * * Two bits are used for locking and completion notification, I_NEW and I_SYNC. * * I_DIRTY_SYNC Inode is dirty, but doesn't have to be written on * fdatasync(). i_atime is the usual cause. * I_DIRTY_DATASYNC Data-related inode changes pending. We keep track of * these changes separately from I_DIRTY_SYNC so that we * don't have to write inode on fdatasync() when only * mtime has changed in it. * I_DIRTY_PAGES Inode has dirty pages. Inode itself may be clean. * I_NEW Serves as both a mutex and completion notification. * New inodes set I_NEW. If two processes both create * the same inode, one of them will release its inode and * wait for I_NEW to be released before returning. * Inodes in I_WILL_FREE, I_FREEING or I_CLEAR state can * also cause waiting on I_NEW, without I_NEW actually * being set. find_inode() uses this to prevent returning * nearly-dead inodes. * I_WILL_FREE Must be set when calling write_inode_now() if i_count * is zero. I_FREEING must be set when I_WILL_FREE is * cleared. * I_FREEING Set when inode is about to be freed but still has dirty * pages or buffers attached or the inode itself is still * dirty. * I_CLEAR Added by clear_inode(). In this state the inode is * clean and can be destroyed. Inode keeps I_FREEING. * * Inodes that are I_WILL_FREE, I_FREEING or I_CLEAR are * prohibited for many purposes. iget() must wait for * the inode to be completely released, then create it * anew. Other functions will just ignore such inodes, * if appropriate. I_NEW is used for waiting. * * I_SYNC Writeback of inode is running. The bit is set during * data writeback, and cleared with a wakeup on the bit * address once it is done. The bit is also used to pin * the inode in memory for flusher thread. * * I_REFERENCED Marks the inode as recently references on the LRU list. * * I_DIO_WAKEUP Never set. Only used as a key for wait_on_bit(). * * I_WB_SWITCH Cgroup bdi_writeback switching in progress. Used to * synchronize competing switching instances and to tell * wb stat updates to grab mapping->tree_lock. See * inode_switch_wb_work_fn() for details. * * Q: What is the difference between I_WILL_FREE and I_FREEING? */ #define I_DIRTY_SYNC (1 << 0) #define I_DIRTY_DATASYNC (1 << 1) #define I_DIRTY_PAGES (1 << 2) #define __I_NEW 3 #define I_NEW (1 << __I_NEW) #define I_WILL_FREE (1 << 4) #define I_FREEING (1 << 5) #define I_CLEAR (1 << 6) #define __I_SYNC 7 #define I_SYNC (1 << __I_SYNC) #define I_REFERENCED (1 << 8) #define __I_DIO_WAKEUP 9 #define I_DIO_WAKEUP (1 << __I_DIO_WAKEUP) #define I_LINKABLE (1 << 10) #define I_DIRTY_TIME (1 << 11) #define __I_DIRTY_TIME_EXPIRED 12 #define I_DIRTY_TIME_EXPIRED (1 << __I_DIRTY_TIME_EXPIRED) #define I_WB_SWITCH (1 << 13) #define I_DIRTY (I_DIRTY_SYNC | I_DIRTY_DATASYNC | I_DIRTY_PAGES) #define I_DIRTY_ALL (I_DIRTY | I_DIRTY_TIME) extern void __mark_inode_dirty(struct inode *, int);
static inline void mark_inode_dirty(struct inode *inode) { __mark_inode_dirty(inode, I_DIRTY); }

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linus torvaldslinus torvalds19100.00%1100.00%
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static inline void mark_inode_dirty_sync(struct inode *inode) { __mark_inode_dirty(inode, I_DIRTY_SYNC); }

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linus torvaldslinus torvalds19100.00%1100.00%
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extern void inc_nlink(struct inode *inode); extern void drop_nlink(struct inode *inode); extern void clear_nlink(struct inode *inode); extern void set_nlink(struct inode *inode, unsigned int nlink);
static inline void inode_inc_link_count(struct inode *inode) { inc_nlink(inode); mark_inode_dirty(inode); }

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dave hansendave hansen1359.09%150.00%
miklos szeredimiklos szeredi940.91%150.00%
Total22100.00%2100.00%


static inline void inode_dec_link_count(struct inode *inode) { drop_nlink(inode); mark_inode_dirty(inode); }

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dave hansendave hansen1672.73%150.00%
alexey dobriyanalexey dobriyan627.27%150.00%
Total22100.00%2100.00%

/** * inode_inc_iversion - increments i_version * @inode: inode that need to be updated * * Every time the inode is modified, the i_version field will be incremented. * The filesystem has to be mounted with i_version flag */
static inline void inode_inc_iversion(struct inode *inode) { spin_lock(&inode->i_lock); inode->i_version++; spin_unlock(&inode->i_lock); }

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jean noel cordennerjean noel cordenner3296.97%266.67%
al viroal viro13.03%133.33%
Total33100.00%3100.00%

enum file_time_flags { S_ATIME = 1, S_MTIME = 2, S_CTIME = 4, S_VERSION = 8, }; extern bool atime_needs_update(const struct path *, struct inode *); extern void touch_atime(const struct path *);
static inline void file_accessed(struct file *file) { if (!(file->f_flags & O_NOATIME)) touch_atime(&file->f_path); }

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al viroal viro1961.29%360.00%
cesar eduardo barroscesar eduardo barros1135.48%120.00%
josef 'jeff' sipekjosef 'jeff' sipek13.23%120.00%
Total31100.00%5100.00%

int sync_inode(struct inode *inode, struct writeback_control *wbc); int sync_inode_metadata(struct inode *inode, int wait); struct file_system_type { const char *name; int fs_flags; #define FS_REQUIRES_DEV 1 #define FS_BINARY_MOUNTDATA 2 #define FS_HAS_SUBTYPE 4 #define FS_USERNS_MOUNT 8 /* Can be mounted by userns root */ #define FS_USERNS_DEV_MOUNT 16 /* A userns mount does not imply MNT_NODEV */ #define FS_USERNS_VISIBLE 32 /* FS must already be visible */ #define FS_RENAME_DOES_D_MOVE 32768 /* FS will handle d_move() during rename() internally. */ struct dentry *(*mount) (struct file_system_type *, int, const char *, void *); void (*kill_sb) (struct super_block *); struct module *owner; struct file_system_type * next; struct hlist_head fs_supers; struct lock_class_key s_lock_key; struct lock_class_key s_umount_key; struct lock_class_key s_vfs_rename_key; struct lock_class_key s_writers_key[SB_FREEZE_LEVELS]; struct lock_class_key i_lock_key; struct lock_class_key i_mutex_key; struct lock_class_key i_mutex_dir_key; }; #define MODULE_ALIAS_FS(NAME) MODULE_ALIAS("fs-" NAME) extern struct dentry *mount_ns(struct file_system_type *fs_type, int flags, void *data, int (*fill_super)(struct super_block *, void *, int)); extern struct dentry *mount_bdev(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, int (*fill_super)(struct super_block *, void *, int)); extern struct dentry *mount_single(struct file_system_type *fs_type, int flags, void *data, int (*fill_super)(struct super_block *, void *, int)); extern struct dentry *mount_nodev(struct file_system_type *fs_type, int flags, void *data, int (*fill_super)(struct super_block *, void *, int)); extern struct dentry *mount_subtree(struct vfsmount *mnt, const char *path); void generic_shutdown_super(struct super_block *sb); void kill_block_super(struct super_block *sb); void kill_anon_super(struct super_block *sb); void kill_litter_super(struct super_block *sb); void deactivate_super(struct super_block *sb); void deactivate_locked_super(struct super_block *sb); int set_anon_super(struct super_block *s, void *data); int get_anon_bdev(dev_t *); void free_anon_bdev(dev_t); struct super_block *sget(struct file_system_type *type, int (*test)(struct super_block *,void *), int (*set)(struct super_block *,void *), int flags, void *data); extern struct dentry *mount_pseudo(struct file_system_type *, char *, const struct super_operations *ops, const struct dentry_operations *dops, unsigned long); /* Alas, no aliases. Too much hassle with bringing module.h everywhere */ #define fops_get(fops) \ (((fops) && try_module_get((fops)->owner) ? (fops) : NULL)) #define fops_put(fops) \ do { if (fops) module_put((fops)->owner); } while(0) /* * This one is to be used *ONLY* from ->open() instances. * fops must be non-NULL, pinned down *and* module dependencies * should be sufficient to pin the caller down as well. */ #define replace_fops(f, fops) \ do { \ struct file *__file = (f); \ fops_put(__file->f_op); \ BUG_ON(!(__file->f_op = (fops))); \ } while(0) extern int register_filesystem(struct file_system_type *); extern int unregister_filesystem(struct file_system_type *); extern struct vfsmount *kern_mount_data(struct file_system_type *, void *data); #define kern_mount(type) kern_mount_data(type, NULL) extern void kern_unmount(struct vfsmount *mnt); extern int may_umount_tree(struct vfsmount *); extern int may_umount(struct vfsmount *); extern long do_mount(const char *, const char __user *, const char *, unsigned long, void *); extern struct vfsmount *collect_mounts(struct path *); extern void drop_collected_mounts(struct vfsmount *); extern int iterate_mounts(int (*)(struct vfsmount *, void *), void *, struct vfsmount *); extern int vfs_statfs(struct path *, struct kstatfs *); extern int user_statfs(const char __user *, struct kstatfs *); extern int fd_statfs(int, struct kstatfs *); extern int vfs_ustat(dev_t, struct kstatfs *); extern int freeze_super(struct super_block *super); extern int thaw_super(struct super_block *super); extern bool our_mnt(struct vfsmount *mnt); extern int current_umask(void); extern void ihold(struct inode * inode); extern void iput(struct inode *); extern int generic_update_time(struct inode *, struct timespec *, int); /* /sys/fs */ extern struct kobject *fs_kobj; #define MAX_RW_COUNT (INT_MAX & PAGE_MASK) #ifdef CONFIG_MANDATORY_FILE_LOCKING extern int locks_mandatory_locked(struct file *); extern int locks_mandatory_area(struct inode *, struct file *, loff_t, loff_t, unsigned char); /* * Candidates for mandatory locking have the setgid bit set * but no group execute bit - an otherwise meaningless combination. */
static inline int __mandatory_lock(struct inode *ino) { return (ino->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID; }

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pavel emelianovpavel emelianov2488.89%150.00%
pre-gitpre-git311.11%150.00%
Total27100.00%2100.00%

/* * ... and these candidates should be on MS_MANDLOCK mounted fs, * otherwise these will be advisory locks */
static inline int mandatory_lock(struct inode *ino) { return IS_MANDLOCK(ino) && __mandatory_lock(ino); }

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pavel emelianovpavel emelianov23100.00%1100.00%
Total23100.00%1100.00%


static inline int locks_verify_locked(struct file *file) { if (mandatory_lock(file_inode(file))) return locks_mandatory_locked(file); return 0; }

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pre-gitpre-git2374.19%250.00%
jeff laytonjeff layton722.58%125.00%
pavel emelianovpavel emelianov13.23%125.00%
Total31100.00%4100.00%


static inline int locks_verify_truncate(struct inode *inode, struct file *f, loff_t size) { if (!inode->i_flctx || !mandatory_lock(inode)) return 0; if (size < inode->i_size) { return locks_mandatory_area(inode, f, size, inode->i_size - 1, F_WRLCK); } else { return locks_mandatory_area(inode, f, inode->i_size, size - 1, F_WRLCK); } }

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pre-gitpre-git4654.12%350.00%
christoph hellwigchristoph hellwig3743.53%116.67%
jeff laytonjeff layton11.18%116.67%
pavel emelianovpavel emelianov11.18%116.67%
Total85100.00%6100.00%

#else /* !CONFIG_MANDATORY_FILE_LOCKING */
static inline int locks_mandatory_locked(struct file *file) { return 0; }

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jeff laytonjeff layton15100.00%1100.00%
Total15100.00%1100.00%


static inline int locks_mandatory_area(struct inode *inode, struct file *filp, loff_t start, loff_t end, unsigned char type) { return 0; }

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jeff laytonjeff layton2376.67%150.00%
linus torvaldslinus torvalds723.33%150.00%
Total30100.00%2100.00%


static inline int __mandatory_lock(struct inode *inode) { return 0; }

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jeff laytonjeff layton15100.00%1100.00%
Total15100.00%1100.00%


static inline int mandatory_lock(struct inode *inode) { return 0; }

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jeff laytonjeff layton15100.00%1100.00%
Total15100.00%1100.00%


static inline int locks_verify_locked(struct file *file) { return 0; }

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jeff laytonjeff layton15100.00%1100.00%
Total15100.00%1100.00%


static inline int locks_verify_truncate(struct inode *inode, struct file *filp, size_t size) { return 0; }

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jeff laytonjeff layton23100.00%1100.00%
Total23100.00%1100.00%

#endif /* CONFIG_MANDATORY_FILE_LOCKING */ #ifdef CONFIG_FILE_LOCKING
static inline int break_lease(struct inode *inode, unsigned int mode) { /* * Since this check is lockless, we must ensure that any refcounts * taken are done before checking i_flctx->flc_lease. Otherwise, we * could end up racing with tasks trying to set a new lease on this * file. */ smp_mb(); if (inode->i_flctx && !list_empty_careful(&inode->i_flctx->flc_lease)) return __break_lease(inode, mode, FL_LEASE); return 0; }

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pre-gitpre-git2346.00%114.29%
jeff laytonjeff layton1632.00%342.86%
j. bruce fieldsj. bruce fields816.00%114.29%
matthew wilcoxmatthew wilcox24.00%114.29%
linus torvaldslinus torvalds12.00%114.29%
Total50100.00%7100.00%


static inline int break_deleg(struct inode *inode, unsigned int mode) { /* * Since this check is lockless, we must ensure that any refcounts * taken are done before checking i_flctx->flc_lease. Otherwise, we * could end up racing with tasks trying to set a new lease on this * file. */ smp_mb(); if (inode->i_flctx && !list_empty_careful(&inode->i_flctx->flc_lease)) return __break_lease(inode, mode, FL_DELEG); return 0; }

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j. bruce fieldsj. bruce fields2856.00%120.00%
jeff laytonjeff layton1632.00%360.00%
pre-gitpre-git612.00%120.00%
Total50100.00%5100.00%


static inline int try_break_deleg(struct inode *inode, struct inode **delegated_inode) { int ret; ret = break_deleg(inode, O_WRONLY|O_NONBLOCK); if (ret == -EWOULDBLOCK && delegated_inode) { *delegated_inode = inode; ihold(inode); } return ret; }

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j. bruce fieldsj. bruce fields56100.00%1100.00%
Total56100.00%1100.00%


static inline int break_deleg_wait(struct inode **delegated_inode) { int ret; ret = break_deleg(*delegated_inode, O_WRONLY); iput(*delegated_inode); *delegated_inode = NULL; return ret; }

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j. bruce fieldsj. bruce fields40100.00%1100.00%
Total40100.00%1100.00%


static inline int break_layout(struct inode *inode, bool wait) { smp_mb(); if (inode->i_flctx && !list_empty_careful(&inode->i_flctx->flc_lease)) return __break_lease(inode, wait ? O_WRONLY : O_WRONLY | O_NONBLOCK, FL_LAYOUT); return 0; }

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christoph hellwigchristoph hellwig54100.00%1100.00%
Total54100.00%1100.00%

#else /* !CONFIG_FILE_LOCKING */
static inline int break_lease(struct inode *inode, unsigned int mode) { return 0; }

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steven whitehousesteven whitehouse1578.95%150.00%
thomas petazzonithomas petazzoni421.05%150.00%
Total19100.00%2100.00%


static inline int break_deleg(struct inode *inode, unsigned int mode) { return 0; }

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j. bruce fieldsj. bruce fields19100.00%1100.00%
Total19100.00%1100.00%


static inline int try_break_deleg(struct inode *inode, struct inode **delegated_inode) { return 0; }

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j. bruce fieldsj. bruce fields21100.00%1100.00%
Total21100.00%1100.00%


static inline int break_deleg_wait(struct inode **delegated_inode) { BUG(); return 0; }

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j. bruce fieldsj. bruce fields19100.00%1100.00%
Total19100.00%1100.00%


static inline int break_layout(struct inode *inode, bool wait) { return 0; }

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christoph hellwigchristoph hellwig18100.00%1100.00%
Total18100.00%1100.00%

#endif /* CONFIG_FILE_LOCKING */ /* fs/open.c */ struct audit_names; struct filename { const char *name; /* pointer to actual string */ const __user char *uptr; /* original userland pointer */ struct audit_names *aname; int refcnt; const char iname[]; }; extern long vfs_truncate(const struct path *, loff_t); extern int do_truncate(struct dentry *, loff_t start, unsigned int time_attrs, struct file *filp); extern int vfs_fallocate(struct file *file, int mode, loff_t offset, loff_t len); extern long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode); extern struct file *file_open_name(struct filename *, int, umode_t); extern struct file *filp_open(const char *, int, umode_t); extern struct file *file_open_root(struct dentry *, struct vfsmount *, const char *, int, umode_t); extern struct file * dentry_open(const struct path *, int, const struct cred *); extern int filp_close(struct file *, fl_owner_t id); extern struct filename *getname_flags(const char __user *, int, int *); extern struct filename *getname(const char __user *); extern struct filename *getname_kernel(const char *); extern void putname(struct filename *name); enum { FILE_CREATED = 1, FILE_OPENED = 2 }; extern int finish_open(struct file *file, struct dentry *dentry, int (*open)(struct inode *, struct file *), int *opened); extern int finish_no_open(struct file *file, struct dentry *dentry); /* fs/ioctl.c */ extern int ioctl_preallocate(struct file *filp, void __user *argp); /* fs/dcache.c */ extern void __init vfs_caches_init_early(void); extern void __init vfs_caches_init(void); extern struct kmem_cache *names_cachep; #define __getname() kmem_cache_alloc(names_cachep, GFP_KERNEL) #define __putname(name) kmem_cache_free(names_cachep, (void *)(name)) #ifdef CONFIG_BLOCK extern int register_blkdev(unsigned int, const char *); extern void unregister_blkdev(unsigned int, const char *); extern struct block_device *bdget(dev_t); extern struct block_device *bdgrab(struct block_device *bdev); extern void bd_set_size(struct block_device *, loff_t size); extern void bd_forget(struct inode *inode); extern void bdput(struct block_device *); extern void invalidate_bdev(struct block_device *); extern void iterate_bdevs(void (*)(struct block_device *, void *), void *); extern int sync_blockdev(struct block_device *bdev); extern void kill_bdev(struct block_device *); extern struct super_block *freeze_bdev(struct block_device *); extern void emergency_thaw_all(void); extern int thaw_bdev(struct block_device *bdev, struct super_block *sb); extern int fsync_bdev(struct block_device *); extern struct super_block *blockdev_superblock;
static inline bool sb_is_blkdev_sb(struct super_block *sb) { return sb == blockdev_superblock; }

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tejun heotejun heo1058.82%150.00%
jan karajan kara741.18%150.00%
Total17100.00%2100.00%

#else
static inline void bd_forget(struct inode *inode) {}

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david howellsdavid howells11100.00%1100.00%
Total11100.00%1100.00%


static inline int sync_blockdev(struct block_device *bdev) { return 0; }

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al viroal viro15100.00%1100.00%
Total15100.00%1100.00%


static inline void kill_bdev(struct block_device *bdev) {}

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al viroal viro11100.00%1100.00%
Total11100.00%1100.00%


static inline void invalidate_bdev(struct block_device *bdev) {}

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al viroal viro11100.00%1100.00%
Total11100.00%1100.00%


static inline struct super_block *freeze_bdev(struct block_device *sb) { return NULL; }

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al viroal viro17100.00%1100.00%
Total17100.00%1100.00%


static inline int thaw_bdev(struct block_device *bdev, struct super_block *sb) { return 0; }

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al viroal viro20100.00%1100.00%
Total20100.00%1100.00%


static inline void iterate_bdevs(void (*f)(struct block_device *, void *), void *arg) { }

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jan karajan kara24100.00%1100.00%
Total24100.00%1100.00%


static inline bool sb_is_blkdev_sb(struct super_block *sb) { return false; }

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jan karajan kara1386.67%150.00%
yaowei baiyaowei bai213.33%150.00%
Total15100.00%2100.00%

#endif extern int sync_filesystem(struct super_block *); extern const struct file_operations def_blk_fops; extern const struct file_operations def_chr_fops; #ifdef CONFIG_BLOCK extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long); extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long); extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long); extern int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder); extern struct block_device *blkdev_get_by_path(const char *path, fmode_t mode, void *holder); extern struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode, void *holder); extern void blkdev_put(struct block_device *bdev, fmode_t mode); extern int __blkdev_reread_part(struct block_device *bdev); extern int blkdev_reread_part(struct block_device *bdev); #ifdef CONFIG_SYSFS extern int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk); extern void bd_unlink_disk_holder(struct block_device *bdev, struct gendisk *disk); #else
static inline int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk) { return 0; }

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jun'ichi nomurajun'ichi nomura1155.00%150.00%
tejun heotejun heo945.00%150.00%
Total20100.00%2100.00%


static inline void bd_unlink_disk_holder(struct block_device *bdev, struct gendisk *disk) { }

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tejun heotejun heo16100.00%1100.00%
Total16100.00%1100.00%

#endif #endif /* fs/char_dev.c */ #define CHRDEV_MAJOR_HASH_SIZE 255 /* Marks the bottom of the first segment of free char majors */ #define CHRDEV_MAJOR_DYN_END 234 extern int alloc_chrdev_region(dev_t *, unsigned, unsigned, const char *); extern int register_chrdev_region(dev_t, unsigned, const char *); extern int __register_chrdev(unsigned int major, unsigned int baseminor, unsigned int count, const char *name, const struct file_operations *fops); extern void __unregister_chrdev(unsigned int major, unsigned int baseminor, unsigned int count, const char *name); extern void unregister_chrdev_region(dev_t, unsigned); extern void chrdev_show(struct seq_file *,off_t);
static inline int register_chrdev(unsigned int major, const char *name, const struct file_operations *fops) { return __register_chrdev(major, 0, 256, name, fops); }

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tejun heotejun heo36100.00%1100.00%
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static inline void unregister_chrdev(unsigned int major, const char *name) { __unregister_chrdev(major, 0, 256, name); }

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tejun heotejun heo27100.00%1100.00%
Total27100.00%1100.00%

/* fs/block_dev.c */ #define BDEVNAME_SIZE 32 /* Largest string for a blockdev identifier */ #define BDEVT_SIZE 10 /* Largest string for MAJ:MIN for blkdev */ #ifdef CONFIG_BLOCK #define BLKDEV_MAJOR_HASH_SIZE 255 extern const char *__bdevname(dev_t, char *buffer); extern const char *bdevname(struct block_device *bdev, char *buffer); extern struct block_device *lookup_bdev(const char *); extern void blkdev_show(struct seq_file *,off_t); #else #define BLKDEV_MAJOR_HASH_SIZE 0 #endif extern void init_special_inode(struct inode *, umode_t, dev_t); /* Invalid inode operations -- fs/bad_inode.c */ extern void make_bad_inode(struct inode *); extern bool is_bad_inode(struct inode *); #ifdef CONFIG_BLOCK /* * return READ, READA, or WRITE */ #define bio_rw(bio) ((bio)->bi_rw & (RW_MASK | RWA_MASK)) /* * return data direction, READ or WRITE */ #define bio_data_dir(bio) ((bio)->bi_rw & 1) extern void check_disk_size_change(struct gendisk *disk, struct block_device *bdev); extern int revalidate_disk(struct gendisk *); extern int check_disk_change(struct block_device *); extern int __invalidate_device(struct block_device *, bool); extern int invalidate_partition(struct gendisk *, int); #endif unsigned long invalidate_mapping_pages(struct address_space *mapping, pgoff_t start, pgoff_t end);
static inline void invalidate_remote_inode(struct inode *inode) { if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) invalidate_mapping_pages(inode->i_mapping, 0, -1); }

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al viroal viro4187.23%150.00%
andrew mortonandrew morton612.77%150.00%
Total47100.00%2100.00%

extern int invalidate_inode_pages2(struct address_space *mapping); extern int invalidate_inode_pages2_range(struct address_space *mapping, pgoff_t start, pgoff_t end); extern int write_inode_now(struct inode *, int); extern int filemap_fdatawrite(struct address_space *); extern int filemap_flush(struct address_space *); extern int filemap_fdatawait(struct address_space *); extern void filemap_fdatawait_keep_errors(struct address_space *); extern int filemap_fdatawait_range(struct address_space *, loff_t lstart, loff_t lend); extern int filemap_write_and_wait(struct address_space *mapping); extern int filemap_write_and_wait_range(struct address_space *mapping, loff_t lstart, loff_t lend); extern int __filemap_fdatawrite_range(struct address_space *mapping, loff_t start, loff_t end, int sync_mode); extern int filemap_fdatawrite_range(struct address_space *mapping, loff_t start, loff_t end); extern int vfs_fsync_range(struct file *file, loff_t start, loff_t end, int datasync); extern int vfs_fsync(struct file *file, int datasync); /* * Sync the bytes written if this was a synchronous write. Expect ki_pos * to already be updated for the write, and will return either the amount * of bytes passed in, or an error if syncing the file failed. */
static inline ssize_t generic_write_sync(struct kiocb *iocb, ssize_t count) { if (iocb->ki_flags & IOCB_DSYNC) { int ret = vfs_fsync_range(iocb->ki_filp, iocb->ki_pos - count, iocb->ki_pos - 1, (iocb->ki_flags & IOCB_SYNC) ? 0 : 1); if (ret) return ret; } return count; }

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christoph hellwigchristoph hellwig3652.17%250.00%
al viroal viro2637.68%125.00%
jan karajan kara710.14%125.00%
Total69100.00%4100.00%

extern void emergency_sync(void); extern void emergency_remount(void); #ifdef CONFIG_BLOCK extern sector_t bmap(struct inode *, sector_t); #endif extern int notify_change(struct dentry *, struct iattr *, struct inode **); extern int inode_permission(struct inode *, int); extern int __inode_permission(struct inode *, int); extern int generic_permission(struct inode *, int); extern int __check_sticky(struct inode *dir, struct inode *inode);
static inline bool execute_ok(struct inode *inode) { return (inode->i_mode & S_IXUGO) || S_ISDIR(inode->i_mode); }

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miklos szeredimiklos szeredi28100.00%1100.00%
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static inline void file_start_write(struct file *file) { if (!S_ISREG(file_inode(file)->i_mode)) return; __sb_start_write(file_inode(file)->i_sb, SB_FREEZE_WRITE, true); }

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al viroal viro40100.00%1100.00%
Total40100.00%1100.00%


static inline bool file_start_write_trylock(struct file *file) { if (!S_ISREG(file_inode(file)->i_mode)) return true; return __sb_start_write(file_inode(file)->i_sb, SB_FREEZE_WRITE, false); }

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jan karajan kara43100.00%1100.00%
Total43100.00%1100.00%


static inline void file_end_write(struct file *file) { if (!S_ISREG(file_inode(file)->i_mode)) return; __sb_end_write(file_inode(file)->i_sb, SB_FREEZE_WRITE); }

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al viroal viro38100.00%1100.00%
Total38100.00%1100.00%

/* * get_write_access() gets write permission for a file. * put_write_access() releases this write permission. * This is used for regular files. * We cannot support write (and maybe mmap read-write shared) accesses and * MAP_DENYWRITE mmappings simultaneously. The i_writecount field of an inode * can have the following values: * 0: no writers, no VM_DENYWRITE mappings * < 0: (-i_writecount) vm_area_structs with VM_DENYWRITE set exist * > 0: (i_writecount) users are writing to the file. * * Normally we operate on that counter with atomic_{inc,dec} and it's safe * except for the cases where we don't hold i_writecount yet. Then we need to * use {get,deny}_write_access() - these functions check the sign and refuse * to do the change if sign is wrong. */
static inline int get_write_access(struct inode *inode) { return atomic_inc_unless_negative(&inode->i_writecount) ? 0 : -ETXTBSY; }

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al viroal viro1973.08%133.33%
andrew mortonandrew morton726.92%266.67%
Total26100.00%3100.00%


static inline int deny_write_access(struct file *file) { struct inode *inode = file_inode(file); return atomic_dec_unless_positive(&inode->i_writecount) ? 0 : -ETXTBSY; }

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al viroal viro2980.56%250.00%
andrew mortonandrew morton719.44%250.00%
Total36100.00%4100.00%


static inline void put_write_access(struct inode * inode) { atomic_dec(&inode->i_writecount); }

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pre-gitpre-git1260.00%240.00%
andrew mortonandrew morton630.00%240.00%
linus torvaldslinus torvalds210.00%120.00%
Total20100.00%5100.00%


static inline void allow_write_access(struct file *file) { if (file) atomic_inc(&file_inode(file)->i_writecount); }

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pre-gitpre-git1555.56%342.86%
andrew mortonandrew morton725.93%114.29%
al viroal viro311.11%114.29%
linus torvaldslinus torvalds27.41%228.57%
Total27100.00%7100.00%


static inline bool inode_is_open_for_write(const struct inode *inode) { return atomic_read(&inode->i_writecount) > 0; }

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david howellsdavid howells24100.00%1100.00%
Total24100.00%1100.00%

#ifdef CONFIG_IMA
static inline void i_readcount_dec(struct inode *inode) { BUG_ON(!atomic_read(&inode->i_readcount)); atomic_dec(&inode->i_readcount); }

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mimi zoharmimi zohar32100.00%1100.00%
Total32100.00%1100.00%


static inline void i_readcount_inc(struct inode *inode) { atomic_inc(&inode->i_readcount); }

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mimi zoharmimi zohar20100.00%1100.00%
Total20100.00%1100.00%

#else
static inline void i_readcount_dec(struct inode *inode) { return; }

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mimi zoharmimi zohar13100.00%1100.00%
Total13100.00%1100.00%


static inline void i_readcount_inc(struct inode *inode) { return; }

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mimi zoharmimi zohar13100.00%1100.00%
Total13100.00%1100.00%

#endif extern int do_pipe_flags(int *, int); #define __kernel_read_file_id(id) \ id(UNKNOWN, unknown) \ id(FIRMWARE, firmware) \ id(MODULE, kernel-module) \ id(KEXEC_IMAGE, kexec-image) \ id(KEXEC_INITRAMFS, kexec-initramfs) \ id(POLICY, security-policy) \ id(MAX_ID, ) #define __fid_enumify(ENUM, dummy) READING_ ## ENUM, #define __fid_stringify(dummy, str) #str, enum kernel_read_file_id { __kernel_read_file_id(__fid_enumify) }; static const char * const kernel_read_file_str[] = { __kernel_read_file_id(__fid_stringify) };
static inline const char *kernel_read_file_id_str(enum kernel_read_file_id id) { if (id < 0 || id >= READING_MAX_ID) return kernel_read_file_str[READING_UNKNOWN]; return kernel_read_file_str[id]; }

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mimi zoharmimi zohar35100.00%1100.00%
Total35100.00%1100.00%

extern int kernel_read(struct file *, loff_t, char *, unsigned long); extern int kernel_read_file(struct file *, void **, loff_t *, loff_t, enum kernel_read_file_id); extern int kernel_read_file_from_path(char *, void **, loff_t *, loff_t, enum kernel_read_file_id); extern int kernel_read_file_from_fd(int, void **, loff_t *, loff_t, enum kernel_read_file_id); extern ssize_t kernel_write(struct file *, const char *, size_t, loff_t); extern ssize_t __kernel_write(struct file *, const char *, size_t, loff_t *); extern struct file * open_exec(const char *); /* fs/dcache.c -- generic fs support functions */ extern bool is_subdir(struct dentry *, struct dentry *); extern bool path_is_under(struct path *, struct path *); extern char *file_path(struct file *, char *, int); #include <linux/err.h> /* needed for stackable file system support */ extern loff_t default_llseek(struct file *file, loff_t offset, int whence); extern loff_t vfs_llseek(struct file *file, loff_t offset, int whence); extern int inode_init_always(struct super_block *, struct inode *); extern void inode_init_once(struct inode *); extern void address_space_init_once(struct address_space *mapping); extern struct inode * igrab(struct inode *); extern ino_t iunique(struct super_block *, ino_t); extern int inode_needs_sync(struct inode *inode); extern int generic_delete_inode(struct inode *inode);
static inline int generic_drop_inode(struct inode *inode) { return !inode->i_nlink || inode_unhashed(inode); }

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al viroal viro1565.22%133.33%
jan karajan kara730.43%133.33%
mark fashehmark fasheh14.35%133.33%
Total23100.00%3100.00%

extern struct inode *ilookup5_nowait(struct super_block *sb, unsigned long hashval, int (*test)(struct inode *, void *), void *data); extern struct inode *ilookup5(struct super_block *sb, unsigned long hashval, int (*test)(struct inode *, void *), void *data); extern struct inode *ilookup(struct super_block *sb, unsigned long ino); extern struct inode * iget5_locked(struct super_block *, unsigned long, int (*test)(struct inode *, void *), int (*set)(struct inode *, void *), void *); extern struct inode * iget_locked(struct super_block *, unsigned long); extern struct inode *find_inode_nowait(struct super_block *, unsigned long, int (*match)(struct inode *, unsigned long, void *), void *data); extern int insert_inode_locked4(struct inode *, unsigned long, int (*test)(struct inode *, void *), void *); extern int insert_inode_locked(struct inode *); #ifdef CONFIG_DEBUG_LOCK_ALLOC extern void lockdep_annotate_inode_mutex_key(struct inode *inode); #else
static inline void lockdep_annotate_inode_mutex_key(struct inode *inode) { }

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josh boyerjosh boyer11100.00%1100.00%
Total11100.00%1100.00%

; #endif extern void unlock_new_inode(struct inode *); extern unsigned int get_next_ino(void); extern void __iget(struct inode * inode); extern void iget_failed(struct inode *); extern void clear_inode(struct inode *); extern void __destroy_inode(struct inode *); extern struct inode *new_inode_pseudo(struct super_block *sb); extern struct inode *new_inode(struct super_block *sb); extern void free_inode_nonrcu(struct inode *inode); extern int should_remove_suid(struct dentry *); extern int file_remove_privs(struct file *); extern int dentry_needs_remove_privs(struct dentry *dentry);
static inline int file_needs_remove_privs(struct file *file) { return dentry_needs_remove_privs(file->f_path.dentry); }

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jan karajan kara22100.00%2100.00%
Total22100.00%2100.00%

extern void __insert_inode_hash(struct inode *, unsigned long hashval);
static inline void insert_inode_hash(struct inode *inode) { __insert_inode_hash(inode, inode->i_ino); }

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eric dumazeteric dumazet21100.00%1100.00%
Total21100.00%1100.00%

extern void __remove_inode_hash(struct inode *);
static inline void remove_inode_hash(struct inode *inode) { if (!inode_unhashed(inode) && !hlist_fake(&inode->i_hash)) __remove_inode_hash(inode); }

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jan harkesjan harkes1647.06%133.33%
josef bacikjosef bacik926.47%133.33%
eric dumazeteric dumazet926.47%133.33%
Total34100.00%3100.00%

extern void inode_sb_list_add(struct inode *inode); #ifdef CONFIG_BLOCK extern blk_qc_t submit_bio(int, struct bio *); extern int bdev_read_only(struct block_device *); #endif extern int set_blocksize(struct block_device *, int); extern int sb_set_blocksize(struct super_block *, int); extern int sb_min_blocksize(struct super_block *, int); extern int generic_file_mmap(struct file *, struct vm_area_struct *); extern int generic_file_readonly_mmap(struct file *, struct vm_area_struct *); extern ssize_t generic_write_checks(struct kiocb *, struct iov_iter *); extern ssize_t generic_file_read_iter(struct kiocb *, struct iov_iter *); extern ssize_t __generic_file_write_iter(struct kiocb *, struct iov_iter *); extern ssize_t generic_file_write_iter(struct kiocb *, struct iov_iter *); extern ssize_t generic_file_direct_write(struct kiocb *, struct iov_iter *); extern ssize_t generic_perform_write(struct file *, struct iov_iter *, loff_t); ssize_t vfs_iter_read(struct file *file, struct iov_iter *iter, loff_t *ppos); ssize_t vfs_iter_write(struct file *file, struct iov_iter *iter, loff_t *ppos); /* fs/block_dev.c */ extern ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to); extern ssize_t blkdev_write_iter(struct kiocb *iocb, struct iov_iter *from); extern int blkdev_fsync(struct file *filp, loff_t start, loff_t end, int datasync); extern void block_sync_page(struct page *page); /* fs/splice.c */ extern ssize_t generic_file_splice_read(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int); extern ssize_t default_file_splice_read(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int); extern ssize_t iter_file_splice_write(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int); extern ssize_t generic_splice_sendpage(struct pipe_inode_info *pipe, struct file *out, loff_t *, size_t len, unsigned int flags); extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out, loff_t *opos, size_t len, unsigned int flags); extern void file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping); extern loff_t noop_llseek(struct file *file, loff_t offset, int whence); extern loff_t no_llseek(struct file *file, loff_t offset, int whence); extern loff_t vfs_setpos(struct file *file, loff_t offset, loff_t maxsize); extern loff_t generic_file_llseek(struct file *file, loff_t offset, int whence); extern loff_t generic_file_llseek_size(struct file *file, loff_t offset, int whence, loff_t maxsize, loff_t eof); extern loff_t fixed_size_llseek(struct file *file, loff_t offset, int whence, loff_t size); extern loff_t no_seek_end_llseek_size(struct file *, loff_t, int, loff_t); extern loff_t no_seek_end_llseek(struct file *, loff_t, int); extern int generic_file_open(struct inode * inode, struct file * filp); extern int nonseekable_open(struct inode * inode, struct file * filp); #ifdef CONFIG_BLOCK typedef void (dio_submit_t)(int rw, struct bio *bio, struct inode *inode, loff_t file_offset); enum { /* need locking between buffered and direct access */ DIO_LOCKING = 0x01, /* filesystem does not support filling holes */ DIO_SKIP_HOLES = 0x02, /* filesystem can handle aio writes beyond i_size */ DIO_ASYNC_EXTEND = 0x04, /* inode/fs/bdev does not need truncate protection */ DIO_SKIP_DIO_COUNT = 0x08, }; void dio_end_io(struct bio *bio, int error); ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode, struct block_device *bdev, struct iov_iter *iter, get_block_t get_block, dio_iodone_t end_io, dio_submit_t submit_io, int flags);
static inline ssize_t blockdev_direct_IO(struct kiocb *iocb, struct inode *inode, struct iov_iter *iter, get_block_t get_block) { return __blockdev_direct_IO(iocb, inode, inode->i_sb->s_bdev, iter, get_block, NULL, NULL, DIO_LOCKING | DIO_SKIP_HOLES); }

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andrew mortonandrew morton3466.67%225.00%
christoph hellwigchristoph hellwig815.69%225.00%
badari pulavartybadari pulavarty35.88%112.50%
al viroal viro35.88%112.50%
josef bacikjosef bacik23.92%112.50%
nathan scottnathan scott11.96%112.50%
Total51100.00%8100.00%

#endif void inode_dio_wait(struct inode *inode); /* * inode_dio_begin - signal start of a direct I/O requests * @inode: inode the direct I/O happens on * * This is called once we've finished processing a direct I/O request, * and is used to wake up callers waiting for direct I/O to be quiesced. */
static inline void inode_dio_begin(struct inode *inode) { atomic_inc(&inode->i_dio_count); }

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jens axboejens axboe1365.00%150.00%
trond myklebusttrond myklebust735.00%150.00%
Total20100.00%2100.00%

/* * inode_dio_end - signal finish of a direct I/O requests * @inode: inode the direct I/O happens on * * This is called once we've finished processing a direct I/O request, * and is used to wake up callers waiting for direct I/O to be quiesced. */
static inline void inode_dio_end(struct inode *inode) { if (atomic_dec_and_test(&inode->i_dio_count)) wake_up_bit(&inode->i_state, __I_DIO_WAKEUP); }

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jens axboejens axboe32100.00%1100.00%
Total32100.00%1100.00%

extern void inode_set_flags(struct inode *inode, unsigned int flags, unsigned int mask); extern const struct file_operations generic_ro_fops; #define special_file(m) (S_ISCHR(m)||S_ISBLK(m)||S_ISFIFO(m)||S_ISSOCK(m)) extern int readlink_copy(char __user *, int, const char *); extern int page_readlink(struct dentry *, char __user *, int); extern const char *page_get_link(struct dentry *, struct inode *, struct delayed_call *); extern void page_put_link(void *); extern int __page_symlink(struct inode *inode, const char *symname, int len, int nofs); extern int page_symlink(struct inode *inode, const char *symname, int len); extern const struct inode_operations page_symlink_inode_operations; extern void kfree_link(void *); extern int generic_readlink(struct dentry *, char __user *, int); extern void generic_fillattr(struct inode *, struct kstat *); int vfs_getattr_nosec(struct path *path, struct kstat *stat); extern int vfs_getattr(struct path *, struct kstat *); void __inode_add_bytes(struct inode *inode, loff_t bytes); void inode_add_bytes(struct inode *inode, loff_t bytes); void __inode_sub_bytes(struct inode *inode, loff_t bytes); void inode_sub_bytes(struct inode *inode, loff_t bytes); loff_t inode_get_bytes(struct inode *inode); void inode_set_bytes(struct inode *inode, loff_t bytes); const char *simple_get_link(struct dentry *, struct inode *, struct delayed_call *); extern const struct inode_operations simple_symlink_inode_operations; extern int iterate_dir(struct file *, struct dir_context *); extern int vfs_stat(const char __user *, struct kstat *); extern int vfs_lstat(const char __user *, struct kstat *); extern int vfs_fstat(unsigned int, struct kstat *); extern int vfs_fstatat(int , const char __user *, struct kstat *, int); extern int __generic_block_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, loff_t start, loff_t len, get_block_t *get_block); extern int generic_block_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 start, u64 len, get_block_t *get_block); extern void get_filesystem(struct file_system_type *fs); extern void put_filesystem(struct file_system_type *fs); extern struct file_system_type *get_fs_type(const char *name); extern struct super_block *get_super(struct block_device *); extern struct super_block *get_super_thawed(struct block_device *); extern struct super_block *get_active_super(struct block_device *bdev); extern void drop_super(struct super_block *sb); extern void iterate_supers(void (*)(struct super_block *, void *), void *); extern void iterate_supers_type(struct file_system_type *, void (*)(struct super_block *, void *), void *); extern int dcache_dir_open(struct inode *, struct file *); extern int dcache_dir_close(struct inode *, struct file *); extern loff_t dcache_dir_lseek(struct file *, loff_t, int); extern int dcache_readdir(struct file *, struct dir_context *); extern int simple_setattr(struct dentry *, struct iattr *); extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *); extern int simple_statfs(struct dentry *, struct kstatfs *); extern int simple_open(struct inode *inode, struct file *file); extern int simple_link(struct dentry *, struct inode *, struct dentry *); extern int simple_unlink(struct inode *, struct dentry *); extern int simple_rmdir(struct inode *, struct dentry *); extern int simple_rename(struct inode *, struct dentry *, struct inode *, struct dentry *); extern int noop_fsync(struct file *, loff_t, loff_t, int); extern int simple_empty(struct dentry *); extern int simple_readpage(struct file *file, struct page *page); extern int simple_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata); extern int simple_write_end(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, struct page *page, void *fsdata); extern int always_delete_dentry(const struct dentry *); extern struct inode *alloc_anon_inode(struct super_block *); extern int simple_nosetlease(struct file *, long, struct file_lock **, void **); extern const struct dentry_operations simple_dentry_operations; extern struct dentry *simple_lookup(struct inode *, struct dentry *, unsigned int flags); extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *); extern const struct file_operations simple_dir_operations; extern const struct inode_operations simple_dir_inode_operations; extern void make_empty_dir_inode(struct inode *inode); extern bool is_empty_dir_inode(struct inode *inode); struct tree_descr { char *name; const struct file_operations *ops; int mode; }; struct dentry *d_alloc_name(struct dentry *, const char *); extern int simple_fill_super(struct super_block *, unsigned long, struct tree_descr *); extern int simple_pin_fs(struct file_system_type *, struct vfsmount **mount, int *count); extern void simple_release_fs(struct vfsmount **mount, int *count); extern ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos, const void *from, size_t available); extern ssize_t simple_write_to_buffer(void *to, size_t available, loff_t *ppos, const void __user *from, size_t count); extern int __generic_file_fsync(struct file *, loff_t, loff_t, int); extern int generic_file_fsync(struct file *, loff_t, loff_t, int); extern int generic_check_addressable(unsigned, u64); #ifdef CONFIG_MIGRATION extern int buffer_migrate_page(struct address_space *, struct page *, struct page *, enum migrate_mode); #else #define buffer_migrate_page NULL #endif extern int inode_change_ok(const struct inode *, struct iattr *); extern int inode_newsize_ok(const struct inode *, loff_t offset); extern void setattr_copy(struct inode *inode, const struct iattr *attr); extern int file_update_time(struct file *file); extern int generic_show_options(struct seq_file *m, struct dentry *root); extern void save_mount_options(struct super_block *sb, char *options); extern void replace_mount_options(struct super_block *sb, char *options);
static inline bool io_is_direct(struct file *filp) { return (filp->f_flags & O_DIRECT) || IS_DAX(filp->f_mapping->host); }

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matthew wilcoxmatthew wilcox2686.67%150.00%
dan williamsdan williams413.33%150.00%
Total30100.00%2100.00%


static inline int iocb_flags(struct file *file) { int res = 0; if (file->f_flags & O_APPEND) res |= IOCB_APPEND; if (io_is_direct(file)) res |= IOCB_DIRECT; if ((file->f_flags & O_DSYNC) || IS_SYNC(file->f_mapping->host)) res |= IOCB_DSYNC; if (file->f_flags & __O_SYNC) res |= IOCB_SYNC; return res; }

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al viroal viro4355.13%150.00%
christoph hellwigchristoph hellwig3544.87%150.00%
Total78100.00%2100.00%


static inline ino_t parent_ino(struct dentry *dentry) { ino_t res; /* * Don't strictly need d_lock here? If the parent ino could change * then surely we'd have a deeper race in the caller? */ spin_lock(&dentry->d_lock); res = dentry->d_parent->d_inode->i_ino; spin_unlock(&dentry->d_lock); return res; }

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al viroal viro3680.00%133.33%
andrew mortonandrew morton817.78%133.33%
nick pigginnick piggin12.22%133.33%
Total45100.00%3100.00%

/* Transaction based IO helpers */ /* * An argresp is stored in an allocated page and holds the * size of the argument or response, along with its content */ struct simple_transaction_argresp { ssize_t size; char data[0]; }; #define SIMPLE_TRANSACTION_LIMIT (PAGE_SIZE - sizeof(struct simple_transaction_argresp)) char *simple_transaction_get(struct file *file, const char __user *buf, size_t size); ssize_t simple_transaction_read(struct file *file, char __user *buf, size_t size, loff_t *pos); int simple_transaction_release(struct inode *inode, struct file *file); void simple_transaction_set(struct file *file, size_t n); /* * simple attribute files * * These attributes behave similar to those in sysfs: * * Writing to an attribute immediately sets a value, an open file can be * written to multiple times. * * Reading from an attribute creates a buffer from the value that might get * read with multiple read calls. When the attribute has been read * completely, no further read calls are possible until the file is opened * again. * * All attributes contain a text representation of a numeric value * that are accessed with the get() and set() functions. */ #define DEFINE_SIMPLE_ATTRIBUTE(__fops, __get, __set, __fmt) \ static int __fops ## _open(struct inode *inode, struct file *file) \ { \ __simple_attr_check_format(__fmt, 0ull); \ return simple_attr_open(inode, file, __get, __set, __fmt); \ } \ static const struct file_operations __fops = { \ .owner = THIS_MODULE, \ .open = __fops ## _open, \ .release = simple_attr_release, \ .read = simple_attr_read, \ .write = simple_attr_write, \ .llseek = generic_file_llseek, \ } static inline __printf(1, 2) void __simple_attr_check_format(const char *fmt, ...) { /* don't do anything, just let the compiler check the arguments; */ } int simple_attr_open(struct inode *inode, struct file *file, int (*get)(void *, u64 *), int (*set)(void *, u64), const char *fmt); int simple_attr_release(struct inode *inode, struct file *file); ssize_t simple_attr_read(struct file *file, char __user *buf, size_t len, loff_t *ppos); ssize_t simple_attr_write(struct file *file, const char __user *buf, size_t len, loff_t *ppos); struct ctl_table; int proc_nr_files(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); int proc_nr_dentry(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); int proc_nr_inodes(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); int __init get_filesystem_list(char *buf); #define __FMODE_EXEC ((__force int) FMODE_EXEC) #define __FMODE_NONOTIFY ((__force int) FMODE_NONOTIFY) #define ACC_MODE(x) ("\004\002\006\006"[(x)&O_ACCMODE]) #define OPEN_FMODE(flag) ((__force fmode_t)(((flag + 1) & O_ACCMODE) | \ (flag & __FMODE_NONOTIFY)))
static inline bool is_sxid(umode_t mode) { return (mode & S_ISUID) || ((mode & S_ISGID) && (mode & S_IXGRP)); }

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andi kleenandi kleen2787.10%125.00%
miklos szeredimiklos szeredi26.45%125.00%
al viroal viro13.23%125.00%
yaowei baiyaowei bai13.23%125.00%
Total31100.00%4100.00%


static inline int check_sticky(struct inode *dir, struct inode *inode) { if (!(dir->i_mode & S_ISVTX)) return 0; return __check_sticky(dir, inode); }

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miklos szeredimiklos szeredi3794.87%150.00%
andi kleenandi kleen25.13%150.00%
Total39100.00%2100.00%


static inline void inode_has_no_xattr(struct inode *inode) { if (!is_sxid(inode->i_mode) && (inode->i_sb->s_flags & MS_NOSEC)) inode->i_flags |= S_NOSEC; }

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andi kleenandi kleen2873.68%150.00%
al viroal viro1026.32%150.00%
Total38100.00%2100.00%


static inline bool is_root_inode(struct inode *inode) { return inode == inode->i_sb->s_root->d_inode; }

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al viroal viro23100.00%1100.00%
Total23100.00%1100.00%


static inline bool dir_emit(struct dir_context *ctx, const char *name, int namelen, u64 ino, unsigned type) { return ctx->actor(ctx, name, namelen, ctx->pos, ino, type) == 0; }

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al viroal viro48100.00%1100.00%
Total48100.00%1100.00%


static inline bool dir_emit_dot(struct file *file, struct dir_context *ctx) { return ctx->actor(ctx, ".", 1, ctx->pos, file->f_path.dentry->d_inode->i_ino, DT_DIR) == 0; }

Contributors

PersonTokensPropCommitsCommitProp
al viroal viro47100.00%1100.00%
Total47100.00%1100.00%


static inline bool dir_emit_dotdot(struct file *file, struct dir_context *ctx) { return ctx->actor(ctx, "..", 2, ctx->pos, parent_ino(file->f_path.dentry), DT_DIR) == 0; }

Contributors

PersonTokensPropCommitsCommitProp
al viroal viro46100.00%1100.00%
Total46100.00%1100.00%


static inline bool dir_emit_dots(struct file *file, struct dir_context *ctx) { if (ctx->pos == 0) { if (!dir_emit_dot(file, ctx)) return false; ctx->pos = 1; } if (ctx->pos == 1) { if (!dir_emit_dotdot(file, ctx)) return false; ctx->pos = 2; } return true; }

Contributors

PersonTokensPropCommitsCommitProp
al viroal viro78100.00%1100.00%
Total78100.00%1100.00%


static inline bool dir_relax(struct inode *inode) { inode_unlock(inode); inode_lock(inode); return !IS_DEADDIR(inode); }

Contributors

PersonTokensPropCommitsCommitProp
al viroal viro29100.00%2100.00%
Total29100.00%2100.00%


static inline bool dir_relax_shared(struct inode *inode) { inode_unlock_shared(inode); inode_lock_shared(inode); return !IS_DEADDIR(inode); }

Contributors

PersonTokensPropCommitsCommitProp
al viroal viro29100.00%1100.00%
Total29100.00%1100.00%

extern bool path_noexec(const struct path *path); extern void inode_nohighmem(struct inode *inode); #endif /* _LINUX_FS_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
al viroal viro251516.74%17317.44%
pre-gitpre-git190112.65%13813.91%
andrew mortonandrew morton11387.57%727.26%
christoph hellwigchristoph hellwig7635.08%606.05%
linus torvaldslinus torvalds7565.03%545.44%
jan karajan kara5623.74%252.52%
david howellsdavid howells5593.72%181.81%
miklos szeredimiklos szeredi5583.71%323.23%
nick pigginnick piggin4292.86%151.51%
jeff laytonjeff layton3982.65%363.63%
steven whitehousesteven whitehouse3982.65%30.30%
j. bruce fieldsj. bruce fields3912.60%222.22%
mimi zoharmimi zohar2401.60%80.81%
tejun heotejun heo2251.50%131.31%
eric w. biedermaneric w. biederman2061.37%70.71%
jens axboejens axboe1641.09%101.01%
andi kleenandi kleen1511.01%101.01%
josef bacikjosef bacik1511.01%70.71%
james morrisjames morris1450.97%40.40%
thomas petazzonithomas petazzoni1340.89%10.10%
trond myklebusttrond myklebust1280.85%111.11%
theodore tsotheodore tso1250.83%90.91%
arnd bergmannarnd bergmann1080.72%30.30%
neil brownneil brown1050.70%90.91%
david herrmanndavid herrmann990.66%10.10%
zach brownzach brown900.60%40.40%
mark fashehmark fasheh880.59%30.30%
dave chinnerdave chinner860.57%101.01%
davidlohr buesodavidlohr bueso850.57%30.30%
anton altaparmakovanton altaparmakov840.56%20.20%
mel gormanmel gorman700.47%60.60%
matthew wilcoxmatthew wilcox700.47%80.81%
hisashi hifumihisashi hifumi670.45%20.20%
benjamin coddingtonbenjamin coddington640.43%10.10%
eric dumazeteric dumazet630.42%60.60%
pavel emelianovpavel emelianov620.41%20.20%
jan harkesjan harkes600.40%30.30%
wu fengguangwu fengguang560.37%60.60%
christoph lameterchristoph lameter530.35%30.30%
benjamin lahaisebenjamin lahaise500.33%20.20%
andrey vaginandrey vagin470.31%10.10%
jun'ichi nomurajun'ichi nomura460.31%20.20%
alexey dobriyanalexey dobriyan460.31%90.91%
serge hallynserge hallyn450.30%40.40%
badari pulavartybadari pulavarty440.29%30.30%
andreas gruenbacherandreas gruenbacher430.29%10.10%
oleg nesterovoleg nesterov400.27%40.40%
tom rinitom rini400.27%20.20%
jean noel cordennerjean noel cordenner360.24%20.20%
dave hansendave hansen360.24%30.30%
darrick j. wongdarrick j. wong360.24%10.10%
william a. adamsonwilliam a. adamson350.23%20.20%
ankit jainankit jain340.23%10.10%
joe perchesjoe perches330.22%30.30%
adrian bunkadrian bunk320.21%20.20%
anton blanchardanton blanchard320.21%20.20%
dmitriy monakhovdmitriy monakhov310.21%30.30%
jan engelhardtjan engelhardt290.19%20.20%
josh boyerjosh boyer290.19%10.10%
stephen rothwellstephen rothwell260.17%40.40%
jaegeuk kimjaegeuk kim250.17%10.10%
jiri slabyjiri slaby250.17%10.10%
ingo molnaringo molnar250.17%60.60%
andrew pattersonandrew patterson240.16%20.20%
marc eshelmarc eshel240.16%40.40%
benjamin marzinskibenjamin marzinski220.15%10.10%
jarod wilsonjarod wilson200.13%10.10%
kirill korotaevkirill korotaev190.13%10.10%
stephen lordstephen lord190.13%10.10%
robert loverobert love190.13%30.30%
aneesh kumaraneesh kumar190.13%10.10%
cyrill gorcunovcyrill gorcunov190.13%10.10%
david drysdaledavid drysdale180.12%20.20%
arjan van de venarjan van de ven170.11%60.60%
dmitry kasatkindmitry kasatkin170.11%10.10%
kinglong meekinglong mee170.11%20.20%
ken preslanken preslan170.11%10.10%
hirofumi ogawahirofumi ogawa170.11%10.10%
oleg drokinoleg drokin170.11%10.10%
richard kennedyrichard kennedy160.11%30.30%
david jefferydavid jeffery150.10%10.10%
fabian frederickfabian frederick150.10%10.10%
jan blunckjan blunck150.10%10.10%
jeff liujeff liu150.10%10.10%
stephen boydstephen boyd150.10%10.10%
andy adamsonandy adamson140.09%10.10%
takashi satotakashi sato130.09%20.20%
peter zijlstrapeter zijlstra130.09%30.30%
paul moorepaul moore130.09%10.10%
neil hormanneil horman130.09%10.10%
david chinnerdavid chinner120.08%10.10%
alan jenkinsalan jenkins120.08%10.10%
joe kortyjoe korty120.08%10.10%
hugh dickinshugh dickins120.08%10.10%
cesar eduardo barroscesar eduardo barros110.07%10.10%
eric sandeeneric sandeen110.07%30.30%
chuck leverchuck lever110.07%10.10%
namhyung kimnamhyung kim110.07%30.30%
ulrich drepperulrich drepper110.07%20.20%
stanislav kinsburskystanislav kinsbursky100.07%10.10%
tim chentim chen100.07%10.10%
alasdair kergonalasdair kergon100.07%10.10%
konstantin khlebnikovkonstantin khlebnikov90.06%20.20%
joern engeljoern engel90.06%10.10%
patrick j. loprestipatrick j. lopresti90.06%10.10%
michael s. tsirkinmichael s. tsirkin90.06%10.10%
randy dunlaprandy dunlap80.05%10.10%
eric pariseric paris80.05%20.20%
kees cookkees cook80.05%10.10%
akinobu mitaakinobu mita80.05%30.30%
stephen d. smalleystephen d. smalley80.05%10.10%
josef 'jeff' sipekjosef 'jeff' sipek70.05%20.20%
william lee irwin iiiwilliam lee irwin iii60.04%20.20%
yaowei baiyaowei bai60.04%50.50%
nathan scottnathan scott60.04%20.20%
vladimir davydovvladimir davydov60.04%10.10%
peter staubachpeter staubach60.04%10.10%
fan dufan du60.04%10.10%
felix blyakherfelix blyakher50.03%10.10%
vitaliy gusevvitaliy gusev50.03%10.10%
davide libenzidavide libenzi50.03%10.10%
linus walleijlinus walleij50.03%10.10%
brian gerstbrian gerst40.03%20.20%
roland dreierroland dreier40.03%10.10%
dan williamsdan williams40.03%10.10%
jason baronjason baron40.03%10.10%
lukas czernerlukas czerner40.03%10.10%
dan magenheimerdan magenheimer40.03%10.10%
ram pairam pai30.02%10.10%
michel lespinassemichel lespinasse30.02%10.10%
satyam sharmasatyam sharma30.02%10.10%
stephen hemmingerstephen hemminger30.02%20.20%
jes sorensenjes sorensen30.02%10.10%
paul gortmakerpaul gortmaker30.02%10.10%
jonathan corbetjonathan corbet30.02%10.10%
greg kroah-hartmangreg kroah-hartman30.02%10.10%
johannes weinerjohannes weiner30.02%10.10%
jann hornjann horn20.01%10.10%
ross zwislerross zwisler20.01%10.10%
rafael aquinirafael aquini20.01%10.10%
paul fulghumpaul fulghum20.01%10.10%
kirill a. shutemovkirill a. shutemov20.01%10.10%
roberto sassuroberto sassu20.01%10.10%
lucas de marchilucas de marchi20.01%10.10%
andries brouwerandries brouwer10.01%10.10%
fengguang wufengguang wu10.01%10.10%
mathieu desnoyersmathieu desnoyers10.01%10.10%
martin poolmartin pool10.01%10.10%
cheng renquancheng renquan10.01%10.10%
chris wrightchris wright10.01%10.10%
seunghun leeseunghun lee10.01%10.10%
jason uhlenkottjason uhlenkott10.01%10.10%
rusty russellrusty russell10.01%10.10%
anna schumakeranna schumaker10.01%10.10%
andrey v. savochkinandrey v. savochkin10.01%10.10%
tetsuo handatetsuo handa10.01%10.10%
tang chentang chen10.01%10.10%
Total15024100.00%992100.00%
Directory: include/linux
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