[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, 3 insertions, 3 deletions

diff --git a/sound/oss/btaudio.c b/sound/oss/btaudio.c
index ad7210a00dc0..f845528e1fac 100644
--- a/sound/oss/btaudio.c
+++ b/sound/oss/btaudio.c
@@ -429,7 +429,7 @@ static int btaudio_mixer_ioctl(struct inode *inode, struct file *file,
         return 0;
 }
 
-static struct file_operations btaudio_mixer_fops = {
+static const struct file_operations btaudio_mixer_fops = {
         .owner          = THIS_MODULE,
         .llseek         = no_llseek,
         .open           = btaudio_mixer_open,
@@ -796,7 +796,7 @@ static unsigned int btaudio_dsp_poll(struct file *file, struct poll_table_struct
         return mask;
 }
 
-static struct file_operations btaudio_digital_dsp_fops = {
+static const struct file_operations btaudio_digital_dsp_fops = {
         .owner          = THIS_MODULE,
         .llseek         = no_llseek,
         .open           = btaudio_dsp_open_digital,
@@ -807,7 +807,7 @@ static struct file_operations btaudio_digital_dsp_fops = {
         .poll           = btaudio_dsp_poll,
 };
 
-static struct file_operations btaudio_analog_dsp_fops = {
+static const struct file_operations btaudio_analog_dsp_fops = {
         .owner          = THIS_MODULE,
         .llseek         = no_llseek,
         .open           = btaudio_dsp_open_analog,