[PATCH] mark struct file_operations const 9

Many struct file_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>

1 files changed, 2 insertions, 2 deletions

diff --git a/security/inode.c b/security/inode.c
index 9b16e14f3a80..d7ecf89fbc74 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -50,7 +50,7 @@ static int default_open(struct inode *inode, struct file *file)
         return 0;
 }
 
-static struct file_operations default_file_ops = {
+static const struct file_operations default_file_ops = {
         .read =         default_read_file,
         .write =        default_write_file,
         .open =         default_open,
@@ -215,7 +215,7 @@ static int create_by_name(const char *name, mode_t mode,
  */
 struct dentry *securityfs_create_file(const char *name, mode_t mode,
                                    struct dentry *parent, void *data,
-                                   struct file_operations *fops)
+                                   const struct file_operations *fops)
 {
         struct dentry *dentry = NULL;
         int error;