[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>

4 files changed, 8 insertions, 8 deletions

diff --git a/fs/smbfs/dir.c b/fs/smbfs/dir.c
index b1e58d1ac9ca..50136b1a3eca 100644
--- a/fs/smbfs/dir.c
+++ b/fs/smbfs/dir.c
@@ -42,7 +42,7 @@ const struct file_operations smb_dir_operations =
         .open           = smb_dir_open,
 };
 
-struct inode_operations smb_dir_inode_operations =
+const struct inode_operations smb_dir_inode_operations =
 {
         .create         = smb_create,
         .lookup         = smb_lookup,
@@ -54,7 +54,7 @@ struct inode_operations smb_dir_inode_operations =
         .setattr        = smb_notify_change,
 };
 
-struct inode_operations smb_dir_inode_operations_unix =
+const struct inode_operations smb_dir_inode_operations_unix =
 {
         .create         = smb_create,
         .lookup         = smb_lookup,
diff --git a/fs/smbfs/file.c b/fs/smbfs/file.c
index e50533a79517..f161797160c4 100644
--- a/fs/smbfs/file.c
+++ b/fs/smbfs/file.c
@@ -418,7 +418,7 @@ const struct file_operations smb_file_operations =
         .sendfile       = smb_file_sendfile,
 };
 
-struct inode_operations smb_file_inode_operations =
+const struct inode_operations smb_file_inode_operations =
 {
         .permission     = smb_file_permission,
         .getattr        = smb_getattr,
diff --git a/fs/smbfs/proto.h b/fs/smbfs/proto.h
index 34fb462b2379..03f456c1b7d4 100644
--- a/fs/smbfs/proto.h
+++ b/fs/smbfs/proto.h
@@ -36,8 +36,8 @@ extern int smb_proc_link(struct smb_sb_info *server, struct dentry *dentry, stru
 extern void smb_install_null_ops(struct smb_ops *ops);
 /* dir.c */
 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 const struct inode_operations smb_dir_inode_operations;
+extern const struct inode_operations smb_dir_inode_operations_unix;
 extern void smb_new_dentry(struct dentry *dentry);
 extern void smb_renew_times(struct dentry *dentry);
 /* cache.c */
@@ -65,7 +65,7 @@ extern int smb_notify_change(struct dentry *dentry, struct iattr *attr);
 /* file.c */
 extern const struct address_space_operations smb_file_aops;
 extern const struct file_operations smb_file_operations;
-extern struct inode_operations smb_file_inode_operations;
+extern const 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);
 /* smbiod.c */
@@ -84,4 +84,4 @@ extern int smb_request_send_server(struct smb_sb_info *server);
 extern int smb_request_recv(struct smb_sb_info *server);
 /* symlink.c */
 extern int smb_symlink(struct inode *inode, struct dentry *dentry, const char *oldname);
-extern struct inode_operations smb_link_inode_operations;
+extern const struct inode_operations smb_link_inode_operations;
diff --git a/fs/smbfs/symlink.c b/fs/smbfs/symlink.c
index cdc53c4fb381..e4bf3456d07e 100644
--- a/fs/smbfs/symlink.c
+++ b/fs/smbfs/symlink.c
@@ -62,7 +62,7 @@ static void smb_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
                 __putname(s);
 }
 
-struct inode_operations smb_link_inode_operations =
+const struct inode_operations smb_link_inode_operations =
 {
         .readlink       = generic_readlink,
         .follow_link    = smb_follow_link,