null_blk: Improve nullb_device_##NAME##_store() readability

Introduce a local variable to make the code easier to read. This patch
does not change any functionality but makes the next patch in this
series easier to read.

Cc: Christoph Hellwig <hch@infradead.org>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Bart Van Assche 2019-09-30 16:00:46 -07:00 committed by Jens Axboe
parent da0c9ea146
commit e29158b4ff
1 changed files with 4 additions and 3 deletions

View File

@ -274,10 +274,11 @@ static ssize_t \
nullb_device_##NAME##_store(struct config_item *item, const char *page, \
size_t count) \
{ \
if (test_bit(NULLB_DEV_FL_CONFIGURED, &to_nullb_device(item)->flags)) \
struct nullb_device *dev = to_nullb_device(item); \
\
if (test_bit(NULLB_DEV_FL_CONFIGURED, &dev->flags)) \
return -EBUSY; \
return nullb_device_##TYPE##_attr_store( \
&to_nullb_device(item)->NAME, page, count); \
return nullb_device_##TYPE##_attr_store(&dev->NAME, page, count); \
} \
CONFIGFS_ATTR(nullb_device_, NAME);