Release 4.7 include/linux/shmem_fs.h
#ifndef __SHMEM_FS_H
#define __SHMEM_FS_H
#include <linux/file.h>
#include <linux/swap.h>
#include <linux/mempolicy.h>
#include <linux/pagemap.h>
#include <linux/percpu_counter.h>
#include <linux/xattr.h>
/* inode in-kernel data */
struct shmem_inode_info {
spinlock_t lock;
unsigned int seals; /* shmem seals */
unsigned long flags;
unsigned long alloced; /* data pages alloced to file */
unsigned long swapped; /* subtotal assigned to swap */
struct shared_policy policy; /* NUMA memory alloc policy */
struct list_head swaplist; /* chain of maybes on swap */
struct simple_xattrs xattrs; /* list of xattrs */
struct inode vfs_inode;
};
struct shmem_sb_info {
unsigned long max_blocks; /* How many blocks are allowed */
struct percpu_counter used_blocks; /* How many are allocated */
unsigned long max_inodes; /* How many inodes are allowed */
unsigned long free_inodes; /* How many are left for allocation */
spinlock_t stat_lock; /* Serialize shmem_sb_info changes */
kuid_t uid; /* Mount uid for root directory */
kgid_t gid; /* Mount gid for root directory */
umode_t mode; /* Mount mode for root directory */
struct mempolicy *mpol; /* default memory policy for mappings */
};
static inline struct shmem_inode_info *SHMEM_I(struct inode *inode)
{
return container_of(inode, struct shmem_inode_info, vfs_inode);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| linus torvalds | linus torvalds | 24 | 96.00% | 2 | 66.67% |
| neil brown | neil brown | 1 | 4.00% | 1 | 33.33% |
| Total | 25 | 100.00% | 3 | 100.00% |
/*
* Functions in mm/shmem.c called directly from elsewhere:
*/
extern int shmem_init(void);
extern int shmem_fill_super(struct super_block *sb, void *data, int silent);
extern struct file *shmem_file_setup(const char *name,
loff_t size, unsigned long flags);
extern struct file *shmem_kernel_file_setup(const char *name, loff_t size,
unsigned long flags);
extern int shmem_zero_setup(struct vm_area_struct *);
extern int shmem_lock(struct file *file, int lock, struct user_struct *user);
extern bool shmem_mapping(struct address_space *mapping);
extern void shmem_unlock_mapping(struct address_space *mapping);
extern struct page *shmem_read_mapping_page_gfp(struct address_space *mapping,
pgoff_t index, gfp_t gfp_mask);
extern void shmem_truncate_range(struct inode *inode, loff_t start, loff_t end);
extern int shmem_unuse(swp_entry_t entry, struct page *page);
extern unsigned long shmem_swap_usage(struct vm_area_struct *vma);
extern unsigned long shmem_partial_swap_usage(struct address_space *mapping,
pgoff_t start, pgoff_t end);
static inline struct page *shmem_read_mapping_page(
struct address_space *mapping, pgoff_t index)
{
return shmem_read_mapping_page_gfp(mapping, index,
mapping_gfp_mask(mapping));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hugh dickins | hugh dickins | 30 | 100.00% | 1 | 100.00% |
| Total | 30 | 100.00% | 1 | 100.00% |
#ifdef CONFIG_TMPFS
extern int shmem_add_seals(struct file *file, unsigned int seals);
extern int shmem_get_seals(struct file *file);
extern long shmem_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
#else
static inline long shmem_fcntl(struct file *f, unsigned int c, unsigned long a)
{
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| david herrmann | david herrmann | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
#endif
#endif
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hugh dickins | hugh dickins | 148 | 34.18% | 8 | 27.59% |
| david herrmann | david herrmann | 81 | 18.71% | 1 | 3.45% |
| pre-git | pre-git | 46 | 10.62% | 1 | 3.45% |
| linus torvalds | linus torvalds | 30 | 6.93% | 3 | 10.34% |
| vlastimil babka | vlastimil babka | 28 | 6.47% | 2 | 6.90% |
| kay sievers | kay sievers | 23 | 5.31% | 1 | 3.45% |
| eric paris | eric paris | 21 | 4.85% | 2 | 6.90% |
| andrew morton | andrew morton | 20 | 4.62% | 2 | 6.90% |
| johannes weiner | johannes weiner | 10 | 2.31% | 1 | 3.45% |
| tim chen | tim chen | 7 | 1.62% | 1 | 3.45% |
| aristeu sergio rozanski filho | aristeu sergio rozanski filho | 6 | 1.39% | 1 | 3.45% |
| lee schermerhorn | lee schermerhorn | 5 | 1.15% | 1 | 3.45% |
| dave jones | dave jones | 3 | 0.69% | 1 | 3.45% |
| eric w. biederman | eric w. biederman | 2 | 0.46% | 1 | 3.45% |
| al viro | al viro | 1 | 0.23% | 1 | 3.45% |
| robin holt | robin holt | 1 | 0.23% | 1 | 3.45% |
| neil brown | neil brown | 1 | 0.23% | 1 | 3.45% |
| Total | 433 | 100.00% | 29 | 100.00% |
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