[PATCH] mark struct file_operations const 5

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, 3 insertions, 3 deletions

diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index 5756401fb15b..6e67b42ca46d 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -115,14 +115,14 @@ static int default_open(struct inode * inode, struct file * filp)
 }
 
 
-static struct file_operations ulong_fops = {
+static const struct file_operations ulong_fops = {
         .read           = ulong_read_file,
         .write          = ulong_write_file,
         .open           = default_open,
 };
 
 
-static struct file_operations ulong_ro_fops = {
+static const struct file_operations ulong_ro_fops = {
         .read           = ulong_read_file,
         .open           = default_open,
 };
@@ -182,7 +182,7 @@ static ssize_t atomic_read_file(struct file * file, char __user * buf, size_t co
 }
  
 
-static struct file_operations atomic_ro_fops = {
+static const struct file_operations atomic_ro_fops = {
         .read           = atomic_read_file,
         .open           = default_open,
 };