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block: Remove useless IPI struct initialization

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rq_fifo_clear() reset the csd.list through INIT_LIST_HEAD for no clear
purpose. The csd.list doesn't need to be initialized as a list head
because it's only ever used as a list node.

Lets remove this useless initialization.

Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@fb.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Frederic Weisbecker 2014-02-24 16:39:53 +01:00 committed by Jens Axboe
parent 8b4922d317
commit d9a74df512
1 changed files with 1 additions and 4 deletions
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5
include/linux/elevator.h
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@ -203,10 +203,7 @@ enum {
#define rb_entry_rq(node) rb_entry((node), struct request, rb_node)
#define rq_entry_fifo(ptr) list_entry((ptr), struct request, queuelist)
#define rq_fifo_clear(rq) do { \
list_del_init(&(rq)->queuelist); \
INIT_LIST_HEAD(&(rq)->csd.list); \
} while (0)
#define rq_fifo_clear(rq) list_del_init(&(rq)->queuelist)
#else /* CONFIG_BLOCK */