[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>

3 files changed, 3 insertions, 3 deletions

diff --git a/drivers/ieee1394/dv1394.c b/drivers/ieee1394/dv1394.c
index 55d6ae664fd6..dee9529aa8e7 100644
--- a/drivers/ieee1394/dv1394.c
+++ b/drivers/ieee1394/dv1394.c
@@ -2147,7 +2147,7 @@ out:
 }
 
 static struct cdev dv1394_cdev;
-static struct file_operations dv1394_fops=
+static const struct file_operations dv1394_fops=
 {
         .owner =        THIS_MODULE,
         .poll =         dv1394_poll,
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index a77a832828c8..aa9ca8385ec7 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -3013,7 +3013,7 @@ static struct hpsb_highlevel raw1394_highlevel = {
 };
 
 static struct cdev raw1394_cdev;
-static struct file_operations raw1394_fops = {
+static const struct file_operations raw1394_fops = {
         .owner = THIS_MODULE,
         .read = raw1394_read,
         .write = raw1394_write,
diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c
index f4d1ec00af65..95ca26d75272 100644
--- a/drivers/ieee1394/video1394.c
+++ b/drivers/ieee1394/video1394.c
@@ -1277,7 +1277,7 @@ static long video1394_compat_ioctl(struct file *f, unsigned cmd, unsigned long a
 #endif
 
 static struct cdev video1394_cdev;
-static struct file_operations video1394_fops=
+static const struct file_operations video1394_fops=
 {
         .owner =        THIS_MODULE,
         .unlocked_ioctl = video1394_ioctl,