[PATCH] mark struct file_operations const 3

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/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index a617ca7b6923..f8bc822a3cc3 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -375,7 +375,7 @@ static int ib_uverbs_event_close(struct inode *inode, struct file *filp)
         return 0;
 }
 
-static struct file_operations uverbs_event_fops = {
+static const struct file_operations uverbs_event_fops = {
         .owner   = THIS_MODULE,
         .read    = ib_uverbs_event_read,
         .poll    = ib_uverbs_event_poll,
@@ -679,14 +679,14 @@ static int ib_uverbs_close(struct inode *inode, struct file *filp)
         return 0;
 }
 
-static struct file_operations uverbs_fops = {
+static const struct file_operations uverbs_fops = {
         .owner   = THIS_MODULE,
         .write   = ib_uverbs_write,
         .open    = ib_uverbs_open,
         .release = ib_uverbs_close
 };
 
-static struct file_operations uverbs_mmap_fops = {
+static const struct file_operations uverbs_mmap_fops = {
         .owner   = THIS_MODULE,
         .write   = ib_uverbs_write,
         .mmap    = ib_uverbs_mmap,