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Subject[PATCH 02/11] block: Remove useless IPI struct initialization
Date
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.

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 <jens.axboe@oracle.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
include/linux/elevator.h | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 0bdfd46..df63bd3 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -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 */

--
1.8.3.1


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