[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, 4 insertions, 4 deletions

diff --git a/fs/coda/cnode.c b/fs/coda/cnode.c
index 4c9fecbfa91f..28c872747f81 100644
--- a/fs/coda/cnode.c
+++ b/fs/coda/cnode.c
@@ -16,7 +16,7 @@ static inline int coda_fideq(struct CodaFid *fid1, struct CodaFid *fid2)
         return memcmp(fid1, fid2, sizeof(*fid1)) == 0;
 }
 
-static struct inode_operations coda_symlink_inode_operations = {
+static const struct inode_operations coda_symlink_inode_operations = {
         .readlink       = generic_readlink,
         .follow_link    = page_follow_link_light,
         .put_link       = page_put_link,
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 0c6f7f3b3dd7..9ddf5ed62162 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -66,7 +66,7 @@ static struct dentry_operations coda_dentry_operations =
         .d_delete       = coda_dentry_delete,
 };
 
-struct inode_operations coda_dir_inode_operations =
+const struct inode_operations coda_dir_inode_operations =
 {
         .create         = coda_create,
         .lookup         = coda_lookup,
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 01395defed85..1562515efdb5 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -271,7 +271,7 @@ int coda_setattr(struct dentry *de, struct iattr *iattr)
         return error;
 }
 
-struct inode_operations coda_file_inode_operations = {
+const struct inode_operations coda_file_inode_operations = {
         .permission     = coda_permission,
         .getattr        = coda_getattr,
         .setattr        = coda_setattr,
diff --git a/fs/coda/pioctl.c b/fs/coda/pioctl.c
index 214822be87bd..2bf3026adc80 100644
--- a/fs/coda/pioctl.c
+++ b/fs/coda/pioctl.c
@@ -30,7 +30,7 @@ static int coda_pioctl(struct inode * inode, struct file * filp,
                        unsigned int cmd, unsigned long user_data);
 
 /* exported from this file */
-struct inode_operations coda_ioctl_inode_operations =
+const struct inode_operations coda_ioctl_inode_operations =
 {
         .permission     = coda_ioctl_permission,
         .setattr        = coda_setattr,