| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Mike Marshall | 1238 | 70.10% | 12 | 21.43% |
| Martin Brandenburg | 227 | 12.85% | 20 | 35.71% |
| Al Viro | 130 | 7.36% | 8 | 14.29% |
| Yi Liu | 98 | 5.55% | 1 | 1.79% |
| Christian Brauner | 34 | 1.93% | 7 | 12.50% |
| Miklos Szeredi | 23 | 1.30% | 2 | 3.57% |
| David Howells | 11 | 0.62% | 1 | 1.79% |
| Ingo Molnar | 1 | 0.06% | 1 | 1.79% |
| Greg Kroah-Hartman | 1 | 0.06% | 1 | 1.79% |
| Jann Horn | 1 | 0.06% | 1 | 1.79% |
| Mauro Carvalho Chehab | 1 | 0.06% | 1 | 1.79% |
| Wedson Almeida Filho | 1 | 0.06% | 1 | 1.79% |
| Total | 1766 | 56 |
/* SPDX-License-Identifier: GPL-2.0 */ /* * (C) 2001 Clemson University and The University of Chicago * * See COPYING in top-level directory. */ /* * The ORANGEFS Linux kernel support allows ORANGEFS volumes to be mounted and * accessed through the Linux VFS (i.e. using standard I/O system calls). * This support is only needed on clients that wish to mount the file system. * */ /* * Declarations and macros for the ORANGEFS Linux kernel support. */ #ifndef __ORANGEFSKERNEL_H #define __ORANGEFSKERNEL_H #include <linux/kernel.h> #include <linux/moduleparam.h> #include <linux/statfs.h> #include <linux/backing-dev.h> #include <linux/device.h> #include <linux/mpage.h> #include <linux/namei.h> #include <linux/errno.h> #include <linux/init.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/types.h> #include <linux/fs.h> #include <linux/vmalloc.h> #include <linux/aio.h> #include <linux/posix_acl.h> #include <linux/posix_acl_xattr.h> #include <linux/compat.h> #include <linux/mount.h> #include <linux/uaccess.h> #include <linux/atomic.h> #include <linux/uio.h> #include <linux/sched/signal.h> #include <linux/mm.h> #include <linux/wait.h> #include <linux/dcache.h> #include <linux/pagemap.h> #include <linux/poll.h> #include <linux/rwsem.h> #include <linux/xattr.h> #include <linux/exportfs.h> #include <linux/hashtable.h> #include <asm/unaligned.h> #include "orangefs-dev-proto.h" #define ORANGEFS_DEFAULT_OP_TIMEOUT_SECS 20 #define ORANGEFS_BUFMAP_WAIT_TIMEOUT_SECS 30 #define ORANGEFS_DEFAULT_SLOT_TIMEOUT_SECS 900 /* 15 minutes */ #define ORANGEFS_REQDEVICE_NAME "pvfs2-req" #define ORANGEFS_DEVREQ_MAGIC 0x20030529 #define ORANGEFS_PURGE_RETRY_COUNT 0x00000005 #define MAX_DEV_REQ_UPSIZE (2 * sizeof(__s32) + \ sizeof(__u64) + sizeof(struct orangefs_upcall_s)) #define MAX_DEV_REQ_DOWNSIZE (2 * sizeof(__s32) + \ sizeof(__u64) + sizeof(struct orangefs_downcall_s)) /* * valid orangefs kernel operation states * * unknown - op was just initialized * waiting - op is on request_list (upward bound) * inprogr - op is in progress (waiting for downcall) * serviced - op has matching downcall; ok * purged - op has to start a timer since client-core * exited uncleanly before servicing op * given up - submitter has given up waiting for it */ enum orangefs_vfs_op_states { OP_VFS_STATE_UNKNOWN = 0, OP_VFS_STATE_WAITING = 1, OP_VFS_STATE_INPROGR = 2, OP_VFS_STATE_SERVICED = 4, OP_VFS_STATE_PURGED = 8, OP_VFS_STATE_GIVEN_UP = 16, }; /* * orangefs kernel memory related flags */ #if (defined CONFIG_DEBUG_SLAB) #define ORANGEFS_CACHE_CREATE_FLAGS SLAB_RED_ZONE #else #define ORANGEFS_CACHE_CREATE_FLAGS 0 #endif extern const struct xattr_handler * const orangefs_xattr_handlers[]; extern struct posix_acl *orangefs_get_acl(struct inode *inode, int type, bool rcu); extern int orangefs_set_acl(struct mnt_idmap *idmap, struct dentry *dentry, struct posix_acl *acl, int type); int __orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type); /* * orangefs data structures */ struct orangefs_kernel_op_s { enum orangefs_vfs_op_states op_state; __u64 tag; /* * Set uses_shared_memory to non zero if this operation uses * shared memory. If true, then a retry on the op must also * get a new shared memory buffer and re-populate it. * Cancels don't care - it only matters for service_operation() * retry logics and cancels don't go through it anymore. It * safely stays non-zero when we use it as slot_to_free. */ union { int uses_shared_memory; int slot_to_free; }; struct orangefs_upcall_s upcall; struct orangefs_downcall_s downcall; struct completion waitq; spinlock_t lock; int attempts; struct list_head list; }; #define set_op_state_waiting(op) ((op)->op_state = OP_VFS_STATE_WAITING) #define set_op_state_inprogress(op) ((op)->op_state = OP_VFS_STATE_INPROGR) #define set_op_state_given_up(op) ((op)->op_state = OP_VFS_STATE_GIVEN_UP) static inline void set_op_state_serviced(struct orangefs_kernel_op_s *op) { op->op_state = OP_VFS_STATE_SERVICED; complete(&op->waitq); } #define op_state_waiting(op) ((op)->op_state & OP_VFS_STATE_WAITING) #define op_state_in_progress(op) ((op)->op_state & OP_VFS_STATE_INPROGR) #define op_state_serviced(op) ((op)->op_state & OP_VFS_STATE_SERVICED) #define op_state_purged(op) ((op)->op_state & OP_VFS_STATE_PURGED) #define op_state_given_up(op) ((op)->op_state & OP_VFS_STATE_GIVEN_UP) #define op_is_cancel(op) ((op)->upcall.type == ORANGEFS_VFS_OP_CANCEL) void op_release(struct orangefs_kernel_op_s *op); extern void orangefs_bufmap_put(int); static inline void put_cancel(struct orangefs_kernel_op_s *op) { orangefs_bufmap_put(op->slot_to_free); op_release(op); } static inline void set_op_state_purged(struct orangefs_kernel_op_s *op) { spin_lock(&op->lock); if (unlikely(op_is_cancel(op))) { list_del_init(&op->list); spin_unlock(&op->lock); put_cancel(op); } else { op->op_state |= OP_VFS_STATE_PURGED; complete(&op->waitq); spin_unlock(&op->lock); } } /* per inode private orangefs info */ struct orangefs_inode_s { struct orangefs_object_kref refn; char link_target[ORANGEFS_NAME_MAX]; /* * Reading/Writing Extended attributes need to acquire the appropriate * reader/writer semaphore on the orangefs_inode_s structure. */ struct rw_semaphore xattr_sem; struct inode vfs_inode; sector_t last_failed_block_index_read; unsigned long getattr_time; unsigned long mapping_time; int attr_valid; kuid_t attr_uid; kgid_t attr_gid; unsigned long bitlock; DECLARE_HASHTABLE(xattr_cache, 4); }; /* per superblock private orangefs info */ struct orangefs_sb_info_s { struct orangefs_khandle root_khandle; __s32 fs_id; int id; int flags; #define ORANGEFS_OPT_INTR 0x01 #define ORANGEFS_OPT_LOCAL_LOCK 0x02 char devname[ORANGEFS_MAX_SERVER_ADDR_LEN]; struct super_block *sb; int mount_pending; int no_list; struct list_head list; }; struct orangefs_stats { unsigned long cache_hits; unsigned long cache_misses; unsigned long reads; unsigned long writes; }; struct orangefs_cached_xattr { struct hlist_node node; char key[ORANGEFS_MAX_XATTR_NAMELEN]; char val[ORANGEFS_MAX_XATTR_VALUELEN]; ssize_t length; unsigned long timeout; }; struct orangefs_write_range { loff_t pos; size_t len; kuid_t uid; kgid_t gid; }; extern struct orangefs_stats orangefs_stats; /* * NOTE: See Documentation/filesystems/porting.rst for information * on implementing FOO_I and properly accessing fs private data */ static inline struct orangefs_inode_s *ORANGEFS_I(struct inode *inode) { return container_of(inode, struct orangefs_inode_s, vfs_inode); } static inline struct orangefs_sb_info_s *ORANGEFS_SB(struct super_block *sb) { return (struct orangefs_sb_info_s *) sb->s_fs_info; } /* ino_t descends from "unsigned long", 8 bytes, 64 bits. */ static inline ino_t orangefs_khandle_to_ino(struct orangefs_khandle *khandle) { union { unsigned char u[8]; __u64 ino; } ihandle; ihandle.u[0] = khandle->u[0] ^ khandle->u[4]; ihandle.u[1] = khandle->u[1] ^ khandle->u[5]; ihandle.u[2] = khandle->u[2] ^ khandle->u[6]; ihandle.u[3] = khandle->u[3] ^ khandle->u[7]; ihandle.u[4] = khandle->u[12] ^ khandle->u[8]; ihandle.u[5] = khandle->u[13] ^ khandle->u[9]; ihandle.u[6] = khandle->u[14] ^ khandle->u[10]; ihandle.u[7] = khandle->u[15] ^ khandle->u[11]; return ihandle.ino; } static inline struct orangefs_khandle *get_khandle_from_ino(struct inode *inode) { return &(ORANGEFS_I(inode)->refn.khandle); } static inline int is_root_handle(struct inode *inode) { gossip_debug(GOSSIP_DCACHE_DEBUG, "%s: root handle: %pU, this handle: %pU:\n", __func__, &ORANGEFS_SB(inode->i_sb)->root_khandle, get_khandle_from_ino(inode)); if (ORANGEFS_khandle_cmp(&(ORANGEFS_SB(inode->i_sb)->root_khandle), get_khandle_from_ino(inode))) return 0; else return 1; } static inline int match_handle(struct orangefs_khandle resp_handle, struct inode *inode) { gossip_debug(GOSSIP_DCACHE_DEBUG, "%s: one handle: %pU, another handle:%pU:\n", __func__, &resp_handle, get_khandle_from_ino(inode)); if (ORANGEFS_khandle_cmp(&resp_handle, get_khandle_from_ino(inode))) return 0; else return 1; } /* * defined in orangefs-cache.c */ int op_cache_initialize(void); int op_cache_finalize(void); struct orangefs_kernel_op_s *op_alloc(__s32 type); void orangefs_new_tag(struct orangefs_kernel_op_s *op); char *get_opname_string(struct orangefs_kernel_op_s *new_op); int orangefs_inode_cache_initialize(void); int orangefs_inode_cache_finalize(void); /* * defined in orangefs-mod.c */ void purge_inprogress_ops(void); /* * defined in waitqueue.c */ void purge_waiting_ops(void); /* * defined in super.c */ extern uint64_t orangefs_features; struct dentry *orangefs_mount(struct file_system_type *fst, int flags, const char *devname, void *data); void orangefs_kill_sb(struct super_block *sb); int orangefs_remount(struct orangefs_sb_info_s *); int fsid_key_table_initialize(void); void fsid_key_table_finalize(void); /* * defined in inode.c */ vm_fault_t orangefs_page_mkwrite(struct vm_fault *); struct inode *orangefs_new_inode(struct super_block *sb, struct inode *dir, umode_t mode, dev_t dev, struct orangefs_object_kref *ref); int __orangefs_setattr(struct inode *, struct iattr *); int __orangefs_setattr_mode(struct dentry *dentry, struct iattr *iattr); int orangefs_setattr(struct mnt_idmap *, struct dentry *, struct iattr *); int orangefs_getattr(struct mnt_idmap *idmap, const struct path *path, struct kstat *stat, u32 request_mask, unsigned int flags); int orangefs_permission(struct mnt_idmap *idmap, struct inode *inode, int mask); int orangefs_update_time(struct inode *, int); /* * defined in xattr.c */ ssize_t orangefs_listxattr(struct dentry *dentry, char *buffer, size_t size); /* * defined in namei.c */ struct inode *orangefs_iget(struct super_block *sb, struct orangefs_object_kref *ref); /* * defined in devorangefs-req.c */ extern uint32_t orangefs_userspace_version; int orangefs_dev_init(void); void orangefs_dev_cleanup(void); int is_daemon_in_service(void); bool __is_daemon_in_service(void); /* * defined in file.c */ int orangefs_revalidate_mapping(struct inode *); ssize_t wait_for_direct_io(enum ORANGEFS_io_type, struct inode *, loff_t *, struct iov_iter *, size_t, loff_t, struct orangefs_write_range *, int *, struct file *); ssize_t do_readv_writev(enum ORANGEFS_io_type, struct file *, loff_t *, struct iov_iter *); /* * defined in orangefs-utils.c */ __s32 fsid_of_op(struct orangefs_kernel_op_s *op); ssize_t orangefs_inode_getxattr(struct inode *inode, const char *name, void *buffer, size_t size); int orangefs_inode_setxattr(struct inode *inode, const char *name, const void *value, size_t size, int flags); #define ORANGEFS_GETATTR_NEW 1 #define ORANGEFS_GETATTR_SIZE 2 int orangefs_inode_getattr(struct inode *, int); int orangefs_inode_check_changed(struct inode *inode); int orangefs_inode_setattr(struct inode *inode); bool orangefs_cancel_op_in_progress(struct orangefs_kernel_op_s *op); int orangefs_normalize_to_errno(__s32 error_code); extern struct mutex orangefs_request_mutex; extern int op_timeout_secs; extern int slot_timeout_secs; extern int orangefs_cache_timeout_msecs; extern int orangefs_dcache_timeout_msecs; extern int orangefs_getattr_timeout_msecs; extern struct list_head orangefs_superblocks; extern spinlock_t orangefs_superblocks_lock; extern struct list_head orangefs_request_list; extern spinlock_t orangefs_request_list_lock; extern wait_queue_head_t orangefs_request_list_waitq; extern struct list_head *orangefs_htable_ops_in_progress; extern spinlock_t orangefs_htable_ops_in_progress_lock; extern int hash_table_size; extern const struct file_operations orangefs_file_operations; extern const struct inode_operations orangefs_symlink_inode_operations; extern const struct inode_operations orangefs_dir_inode_operations; extern const struct file_operations orangefs_dir_operations; extern const struct dentry_operations orangefs_dentry_operations; /* * misc convenience macros */ #define ORANGEFS_OP_INTERRUPTIBLE 1 /* service_operation() is interruptible */ #define ORANGEFS_OP_PRIORITY 2 /* service_operation() is high priority */ #define ORANGEFS_OP_CANCELLATION 4 /* this is a cancellation */ #define ORANGEFS_OP_NO_MUTEX 8 /* don't acquire request_mutex */ #define ORANGEFS_OP_ASYNC 16 /* Queue it, but don't wait */ #define ORANGEFS_OP_WRITEBACK 32 int service_operation(struct orangefs_kernel_op_s *op, const char *op_name, int flags); #define get_interruptible_flag(inode) \ ((ORANGEFS_SB(inode->i_sb)->flags & ORANGEFS_OPT_INTR) ? \ ORANGEFS_OP_INTERRUPTIBLE : 0) #define fill_default_sys_attrs(sys_attr, type, mode) \ do { \ sys_attr.owner = from_kuid(&init_user_ns, current_fsuid()); \ sys_attr.group = from_kgid(&init_user_ns, current_fsgid()); \ sys_attr.perms = ORANGEFS_util_translate_mode(mode); \ sys_attr.mtime = 0; \ sys_attr.atime = 0; \ sys_attr.ctime = 0; \ sys_attr.mask = ORANGEFS_ATTR_SYS_ALL_SETABLE; \ } while (0) static inline void orangefs_set_timeout(struct dentry *dentry) { unsigned long time = jiffies + orangefs_dcache_timeout_msecs*HZ/1000; dentry->d_fsdata = (void *) time; } #endif /* __ORANGEFSKERNEL_H */
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