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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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1b8ab8159e
Copy the inode size and blocks from one inode to another correctly on 32-bit systems with CONFIG_SMP, CONFIG_PREEMPT, or CONFIG_LBDAF. Use proper inode spinlocks only when i_size/i_blocks cannot fit in one 32-bit word. Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
30 lines
772 B
C
30 lines
772 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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extern void fsstack_copy_inode_size(struct inode *dst, 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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