dm: remove fmode_t argument from .prepare_ioctl hook
Use the fmode_t that is passed to dm_blk_ioctl() rather than
inconsistently (varies across targets) drop it on the floor by
overriding it with the fmode_t stored in 'struct dm_dev'.
All the persistent reservation functions weren't using the fmode_t they
got back from .prepare_ioctl so remove them.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 019e2ef..ed038fb 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -90,8 +90,7 @@ typedef void (*dm_status_fn) (struct dm_target *ti, status_type_t status_type,
typedef int (*dm_message_fn) (struct dm_target *ti, unsigned argc, char **argv,
char *result, unsigned maxlen);
-typedef int (*dm_prepare_ioctl_fn) (struct dm_target *ti,
- struct block_device **bdev, fmode_t *mode);
+typedef int (*dm_prepare_ioctl_fn) (struct dm_target *ti, struct block_device **bdev);
/*
* These iteration functions are typically used to check (and combine)