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authorArjan van de Ven <arjan@infradead.org>2006-03-28 01:56:42 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-28 09:16:06 -0800
commit4b6f5d20b04dcbc3d888555522b90ba6d36c4106 (patch)
tree420f271eaef7d3def7d4433b151c3cb6d7a54770 /include/linux/msdos_fs.h
parent99ac48f54a91d02140c497edc31dc57d4bc5c85d (diff)
downloadop-kernel-dev-4b6f5d20b04dcbc3d888555522b90ba6d36c4106.zip
op-kernel-dev-4b6f5d20b04dcbc3d888555522b90ba6d36c4106.tar.gz
[PATCH] Make most file operations structs in fs/ const
This is a conversion to make the various file_operations structs in fs/ const. Basically a regexp job, with a few manual fixups The goal is both to increase correctness (harder to accidentally write to shared datastructures) and reducing the false sharing of cachelines with things that get dirty in .data (while .rodata is nicely read only and thus cache clean) Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/msdos_fs.h')
-rw-r--r--include/linux/msdos_fs.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h
index 53cee15..d9035c7 100644
--- a/include/linux/msdos_fs.h
+++ b/include/linux/msdos_fs.h
@@ -334,7 +334,7 @@ extern int fat_bmap(struct inode *inode, sector_t sector, sector_t *phys,
unsigned long *mapped_blocks);
/* fat/dir.c */
-extern struct file_operations fat_dir_operations;
+extern const struct file_operations fat_dir_operations;
extern int fat_search_long(struct inode *inode, const unsigned char *name,
int name_len, struct fat_slot_info *sinfo);
extern int fat_dir_empty(struct inode *dir);
@@ -397,7 +397,7 @@ extern int fat_count_free_clusters(struct super_block *sb);
/* fat/file.c */
extern int fat_generic_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
-extern struct file_operations fat_file_operations;
+extern const struct file_operations fat_file_operations;
extern struct inode_operations fat_file_inode_operations;
extern int fat_notify_change(struct dentry * dentry, struct iattr * attr);
extern void fat_truncate(struct inode *inode);
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