[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>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/s390/char/tape_class.c b/drivers/s390/char/tape_class.c
index 56b87618b100..2e0d29730b67 100644
--- a/drivers/s390/char/tape_class.c
+++ b/drivers/s390/char/tape_class.c
@@ -36,7 +36,7 @@ static struct class *tape_class;
 struct tape_class_device *register_tape_dev(
         struct device *         device,
         dev_t                   dev,
-        struct file_operations *fops,
+        const struct file_operations *fops,
         char *                  device_name,
         char *                  mode_name)
 {
diff --git a/drivers/s390/char/tape_class.h b/drivers/s390/char/tape_class.h
index 3d0ca054cdee..a8bd9b47fad6 100644
--- a/drivers/s390/char/tape_class.h
+++ b/drivers/s390/char/tape_class.h
@@ -52,7 +52,7 @@ struct tape_class_device {
 struct tape_class_device *register_tape_dev(
         struct device *         device,
         dev_t                   dev,
-        struct file_operations *fops,
+        const struct file_operations *fops,
         char *                  device_name,
         char *                  node_name
 );