[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>

3 files changed, 4 insertions, 4 deletions

diff --git a/fs/smbfs/dir.c b/fs/smbfs/dir.c
index 0424d06b147e..34c7a11d91f0 100644
--- a/fs/smbfs/dir.c
+++ b/fs/smbfs/dir.c
@@ -34,7 +34,7 @@ static int smb_rename(struct inode *, struct dentry *,
 static int smb_make_node(struct inode *,struct dentry *,int,dev_t);
 static int smb_link(struct dentry *, struct inode *, struct dentry *);
 
-struct file_operations smb_dir_operations =
+const struct file_operations smb_dir_operations =
 {
         .read           = generic_read_dir,
         .readdir        = smb_readdir,
diff --git a/fs/smbfs/file.c b/fs/smbfs/file.c
index 7042e62726a4..c56bd99a9701 100644
--- a/fs/smbfs/file.c
+++ b/fs/smbfs/file.c
@@ -401,7 +401,7 @@ smb_file_permission(struct inode *inode, int mask, struct nameidata *nd)
         return error;
 }
 
-struct file_operations smb_file_operations =
+const struct file_operations smb_file_operations =
 {
         .llseek         = remote_llseek,
         .read           = smb_file_read,
diff --git a/fs/smbfs/proto.h b/fs/smbfs/proto.h
index e866ec8660d0..47664597e6b1 100644
--- a/fs/smbfs/proto.h
+++ b/fs/smbfs/proto.h
@@ -35,7 +35,7 @@ extern int smb_proc_symlink(struct smb_sb_info *server, struct dentry *d, const
 extern int smb_proc_link(struct smb_sb_info *server, struct dentry *dentry, struct dentry *new_dentry);
 extern void smb_install_null_ops(struct smb_ops *ops);
 /* dir.c */
-extern struct file_operations smb_dir_operations;
+extern const struct file_operations smb_dir_operations;
 extern struct inode_operations smb_dir_inode_operations;
 extern struct inode_operations smb_dir_inode_operations_unix;
 extern void smb_new_dentry(struct dentry *dentry);
@@ -64,7 +64,7 @@ extern int smb_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat
 extern int smb_notify_change(struct dentry *dentry, struct iattr *attr);
 /* file.c */
 extern struct address_space_operations smb_file_aops;
-extern struct file_operations smb_file_operations;
+extern const struct file_operations smb_file_operations;
 extern struct inode_operations smb_file_inode_operations;
 /* ioctl.c */
 extern int smb_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg);