const: make block_device_operations const

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index b79ca41..64207df 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1686,7 +1686,7 @@
 	return  0;
 }
 
-static struct block_device_operations idecd_ops = {
+static const struct block_device_operations idecd_ops = {
 	.owner			= THIS_MODULE,
 	.open			= idecd_open,
 	.release		= idecd_release,
diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c
index 2141190..7532414 100644
--- a/drivers/ide/ide-gd.c
+++ b/drivers/ide/ide-gd.c
@@ -321,7 +321,7 @@
 	return drive->disk_ops->ioctl(drive, bdev, mode, cmd, arg);
 }
 
-static struct block_device_operations ide_gd_ops = {
+static const struct block_device_operations ide_gd_ops = {
 	.owner			= THIS_MODULE,
 	.open			= ide_gd_open,
 	.release		= ide_gd_release,
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 9d6f62b..58fc920 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1913,7 +1913,7 @@
 	return err;
 }
 
-static struct block_device_operations idetape_block_ops = {
+static const struct block_device_operations idetape_block_ops = {
 	.owner		= THIS_MODULE,
 	.open		= idetape_open,
 	.release	= idetape_release,