commit 92e1d5be91a0e3ffa5c4697eeb09b2aa22792122
author Arjan van de Ven <arjan@linux.intel.com> Mon Feb 12 00:55:39 2007 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> Mon Feb 12 09:48:46 2007 -0800
tree 4eb22a9f6c38e9f4cc2a5100cd6659b0af08b7ae
parent 754661f143e70d66eae6c48532ca245aa05dec0e

[PATCH] mark struct inode_operations const 2

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>

fs/nfs/dir.c

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index d9ba8cb..f03a770 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -65,7 +65,7 @@
 	.fsync		= nfs_fsync_dir,
 };
 
-struct inode_operations nfs_dir_inode_operations = {
+const struct inode_operations nfs_dir_inode_operations = {
 	.create		= nfs_create,
 	.lookup		= nfs_lookup,
 	.link		= nfs_link,
@@ -81,7 +81,7 @@
 };
 
 #ifdef CONFIG_NFS_V3
-struct inode_operations nfs3_dir_inode_operations = {
+const struct inode_operations nfs3_dir_inode_operations = {
 	.create		= nfs_create,
 	.lookup		= nfs_lookup,
 	.link		= nfs_link,
@@ -104,7 +104,7 @@
 #ifdef CONFIG_NFS_V4
 
 static struct dentry *nfs_atomic_lookup(struct inode *, struct dentry *, struct nameidata *);
-struct inode_operations nfs4_dir_inode_operations = {
+const struct inode_operations nfs4_dir_inode_operations = {
 	.create		= nfs_create,
 	.lookup		= nfs_atomic_lookup,
 	.link		= nfs_link,

fs/nfs/file.c

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 9e4a2b7..8e66b5a 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -68,14 +68,14 @@
 	.check_flags	= nfs_check_flags,
 };
 
-struct inode_operations nfs_file_inode_operations = {
+const struct inode_operations nfs_file_inode_operations = {
 	.permission	= nfs_permission,
 	.getattr	= nfs_getattr,
 	.setattr	= nfs_setattr,
 };
 
 #ifdef CONFIG_NFS_V3
-struct inode_operations nfs3_file_inode_operations = {
+const struct inode_operations nfs3_file_inode_operations = {
 	.permission	= nfs_permission,
 	.getattr	= nfs_getattr,
 	.setattr	= nfs_setattr,

fs/nfs/namespace.c

diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index 371b804..7f86e65 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -155,12 +155,12 @@
 	goto out;
 }
 
-struct inode_operations nfs_mountpoint_inode_operations = {
+const struct inode_operations nfs_mountpoint_inode_operations = {
 	.follow_link	= nfs_follow_mountpoint,
 	.getattr	= nfs_getattr,
 };
 
-struct inode_operations nfs_referral_inode_operations = {
+const struct inode_operations nfs_referral_inode_operations = {
 	.follow_link	= nfs_follow_mountpoint,
 };
 

fs/nfs/nfs4_fs.h

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index c26cd97..e234176 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -151,7 +151,7 @@
 };
 
 extern struct dentry_operations nfs4_dentry_operations;
-extern struct inode_operations nfs4_dir_inode_operations;
+extern const struct inode_operations nfs4_dir_inode_operations;
 
 /* inode.c */
 extern ssize_t nfs4_getxattr(struct dentry *, const char *, void *, size_t);

fs/nfs/nfs4proc.c

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index b3fd29b..1daee65 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3625,7 +3625,7 @@
 	.recover_lock	= nfs4_lock_expired,
 };
 
-static struct inode_operations nfs4_file_inode_operations = {
+static const struct inode_operations nfs4_file_inode_operations = {
 	.permission	= nfs_permission,
 	.getattr	= nfs_getattr,
 	.setattr	= nfs_setattr,

fs/nfs/symlink.c

diff --git a/fs/nfs/symlink.c b/fs/nfs/symlink.c
index 525c136..f4a0548 100644
--- a/fs/nfs/symlink.c
+++ b/fs/nfs/symlink.c
@@ -78,7 +78,7 @@
 /*
  * symlinks can't do much...
  */
-struct inode_operations nfs_symlink_inode_operations = {
+const struct inode_operations nfs_symlink_inode_operations = {
 	.readlink	= generic_readlink,
 	.follow_link	= nfs_follow_link,
 	.put_link	= page_put_link,