[PATCH] mark struct inode_operations const 1

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, 5 insertions, 5 deletions

diff --git a/fs/configfs/configfs_internal.h b/fs/configfs/configfs_internal.h
index f92cd303d2c9..7b48c034b312 100644
--- a/fs/configfs/configfs_internal.h
+++ b/fs/configfs/configfs_internal.h
@@ -75,8 +75,8 @@ extern struct super_block * configfs_sb;
 extern const struct file_operations configfs_dir_operations;
 extern const struct file_operations configfs_file_operations;
 extern const struct file_operations bin_fops;
-extern struct inode_operations configfs_dir_inode_operations;
-extern struct inode_operations configfs_symlink_inode_operations;
+extern const struct inode_operations configfs_dir_inode_operations;
+extern const struct inode_operations configfs_symlink_inode_operations;
 
 extern int configfs_symlink(struct inode *dir, struct dentry *dentry,
                             const char *symname);
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 9371ee209954..34750d5e4ff2 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -930,7 +930,7 @@ static int configfs_rmdir(struct inode *dir, struct dentry *dentry)
         return 0;
 }
 
-struct inode_operations configfs_dir_inode_operations = {
+const struct inode_operations configfs_dir_inode_operations = {
         .mkdir          = configfs_mkdir,
         .rmdir          = configfs_rmdir,
         .symlink        = configfs_symlink,
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
index fb18917954a9..2ec9beac17cf 100644
--- a/fs/configfs/inode.c
+++ b/fs/configfs/inode.c
@@ -49,7 +49,7 @@ static struct backing_dev_info configfs_backing_dev_info = {
         .capabilities   = BDI_CAP_NO_ACCT_DIRTY | BDI_CAP_NO_WRITEBACK,
 };
 
-static struct inode_operations configfs_inode_operations ={
+static const struct inode_operations configfs_inode_operations ={
         .setattr        = configfs_setattr,
 };
 
diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c
index fb65e0800a86..22700d2857da 100644
--- a/fs/configfs/symlink.c
+++ b/fs/configfs/symlink.c
@@ -272,7 +272,7 @@ static void configfs_put_link(struct dentry *dentry, struct nameidata *nd,
         }
 }
 
-struct inode_operations configfs_symlink_inode_operations = {
+const struct inode_operations configfs_symlink_inode_operations = {
         .follow_link = configfs_follow_link,
         .readlink = generic_readlink,
         .put_link = configfs_put_link,