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[PATCH] Make most file operations structs in fs/ const

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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 <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Arjan van de Ven 2006-03-28 01:56:42 -08:00 • committed by Linus Torvalds
commit 4b6f5d20b0
139 changed files with 225 additions and 225 deletions
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4
fs/bfs/bfs.h
View file

@ -49,11 +49,11 @@ static inline struct bfs_inode_info *BFS_I(struct inode *inode)
/* file.c */
extern struct inode_operations bfs_file_inops;
extern struct file_operations bfs_file_operations;
extern const struct file_operations bfs_file_operations;
extern struct address_space_operations bfs_aops;
/* dir.c */
extern struct inode_operations bfs_dir_inops;
extern struct file_operations bfs_dir_operations;
extern const struct file_operations bfs_dir_operations;
#endif /* _FS_BFS_BFS_H */

2
fs/bfs/dir.c
View file

@ -70,7 +70,7 @@ static int bfs_readdir(struct file * f, void * dirent, filldir_t filldir)
return 0;
}
struct file_operations bfs_dir_operations = {
const struct file_operations bfs_dir_operations = {
.read = generic_read_dir,
.readdir = bfs_readdir,
.fsync = file_fsync,

2
fs/bfs/file.c
View file

@ -17,7 +17,7 @@
#define dprintf(x...)
#endif
struct file_operations bfs_file_operations = {
const struct file_operations bfs_file_operations = {
.llseek = generic_file_llseek,
.read = generic_file_read,
.write = generic_file_write,