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authorArjan van de Ven <arjan@linux.intel.com>2007-02-12 00:55:40 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 09:48:46 -0800
commitc5ef1c42c51b1b5b4a401a6517bdda30933ddbaf (patch)
treee1a9804a8af427f700aaba4b386cf8679b317e83 /include/linux/msdos_fs.h
parent92e1d5be91a0e3ffa5c4697eeb09b2aa22792122 (diff)
[PATCH] mark struct inode_operations const 3
Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/msdos_fs.h')
-rw-r--r--include/linux/msdos_fs.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h
index 24a9ef1506b..fa253fa73aa 100644
--- a/include/linux/msdos_fs.h
+++ b/include/linux/msdos_fs.h
@@ -234,7 +234,7 @@ struct msdos_sb_info {
struct fat_mount_options options;
struct nls_table *nls_disk; /* Codepage used on disk */
struct nls_table *nls_io; /* Charset used for input and display */
- void *dir_ops; /* Opaque; default directory operations */
+ const void *dir_ops; /* Opaque; default directory operations */
int dir_per_block; /* dir entries per block */
int dir_per_block_bits; /* log2(dir_per_block) */
@@ -399,7 +399,7 @@ extern int fat_count_free_clusters(struct super_block *sb);
extern int fat_generic_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern const struct file_operations fat_file_operations;
-extern struct inode_operations fat_file_inode_operations;
+extern const 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);
extern int fat_getattr(struct vfsmount *mnt, struct dentry *dentry,
@@ -413,7 +413,7 @@ extern struct inode *fat_build_inode(struct super_block *sb,
struct msdos_dir_entry *de, loff_t i_pos);
extern int fat_sync_inode(struct inode *inode);
extern int fat_fill_super(struct super_block *sb, void *data, int silent,
- struct inode_operations *fs_dir_inode_ops, int isvfat);
+ const struct inode_operations *fs_dir_inode_ops, int isvfat);
extern int fat_flush_inodes(struct super_block *sb, struct inode *i1,
struct inode *i2);