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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. [akpm@osdl.org: Remove unneeded wrapper] [bunk@stusta.de: fs/stack.c should #include <linux/fs_stack.h>] Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
32 lines
818 B
C
32 lines
818 B
C
#ifndef _LINUX_FS_STACK_H
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#define _LINUX_FS_STACK_H
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/* This file defines generic functions used primarily by stackable
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* filesystems; none of these functions require i_mutex to be held.
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*/
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#include <linux/fs.h>
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/* externs for fs/stack.c */
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extern void fsstack_copy_attr_all(struct inode *dest, const struct inode *src,
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int (*get_nlinks)(struct inode *));
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extern void fsstack_copy_inode_size(struct inode *dst, const struct inode *src);
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/* inlines */
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static inline void fsstack_copy_attr_atime(struct inode *dest,
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const struct inode *src)
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{
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dest->i_atime = src->i_atime;
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}
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static inline void fsstack_copy_attr_times(struct inode *dest,
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const struct inode *src)
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{
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dest->i_atime = src->i_atime;
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dest->i_mtime = src->i_mtime;
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dest->i_ctime = src->i_ctime;
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}
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#endif /* _LINUX_FS_STACK_H */
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