mirror of
https://github.com/torvalds/linux.git
synced 2026-10-07 05:31:08 -04:00
Josef "Jeff" Sipek
42cf11939b
Introduce several fsstack_copy_* functions which allow stackable filesystems (such as eCryptfs and Unionfs) to easily copy over (currently only) inode attributes. This prevents code duplication and allows for code reuse. [[email protected]: Remove unneeded wrapper] [[email protected]: fs/stack.c should #include <linux/fs_stack.h>] Signed-off-by: Josef "Jeff" Sipek <[email protected]> Cc: Michael Halcrow <[email protected]> Signed-off-by: Adrian Bunk <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
32 lines
818 B
C
32 lines
818 B
C
#ifndef _LINUX_FS_STACK_H
|
|
#define _LINUX_FS_STACK_H
|
|
|
|
/* This file defines generic functions used primarily by stackable
|
|
* filesystems; none of these functions require i_mutex to be held.
|
|
*/
|
|
|
|
#include <linux/fs.h>
|
|
|
|
/* externs for fs/stack.c */
|
|
extern void fsstack_copy_attr_all(struct inode *dest, const struct inode *src,
|
|
int (*get_nlinks)(struct inode *));
|
|
|
|
extern void fsstack_copy_inode_size(struct inode *dst, const struct inode *src);
|
|
|
|
/* inlines */
|
|
static inline void fsstack_copy_attr_atime(struct inode *dest,
|
|
const struct inode *src)
|
|
{
|
|
dest->i_atime = src->i_atime;
|
|
}
|
|
|
|
static inline void fsstack_copy_attr_times(struct inode *dest,
|
|
const struct inode *src)
|
|
{
|
|
dest->i_atime = src->i_atime;
|
|
dest->i_mtime = src->i_mtime;
|
|
dest->i_ctime = src->i_ctime;
|
|
}
|
|
|
|
#endif /* _LINUX_FS_STACK_H */
|