diff options
| author | Jan Kara <jack@suse.cz> | 2014-02-24 16:39:52 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-02-24 14:46:32 -0800 |
| commit | 8b4922d3173d2eee7b43be8e5caec3ab7d30feff (patch) | |
| tree | 171fd625657933067d47b0ef0a29f10443a21c81 /include/linux/elevator.h | |
| parent | bf36f9cfa6d3d129387b9d62f495d978ed4ade7c (diff) | |
| download | blackbird-op-linux-8b4922d3173d2eee7b43be8e5caec3ab7d30feff.tar.gz blackbird-op-linux-8b4922d3173d2eee7b43be8e5caec3ab7d30feff.zip | |
block: Stop abusing csd.list for fifo_time
Block layer currently abuses rq->csd.list.next for storing fifo_time.
That is a terrible hack and completely unnecessary as well. Union
achieves the same space saving in a cleaner way.
Signed-off-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: Jens Axboe <axboe@fb.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/elevator.h')
| -rw-r--r-- | include/linux/elevator.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/include/linux/elevator.h b/include/linux/elevator.h index 306dd8cd0b6f..0bdfd46f4735 100644 --- a/include/linux/elevator.h +++ b/include/linux/elevator.h @@ -202,12 +202,6 @@ enum { #define rq_end_sector(rq) (blk_rq_pos(rq) + blk_rq_sectors(rq)) #define rb_entry_rq(node) rb_entry((node), struct request, rb_node) -/* - * Hack to reuse the csd.list list_head as the fifo time holder while - * the request is in the io scheduler. Saves an unsigned long in rq. - */ -#define rq_fifo_time(rq) ((unsigned long) (rq)->csd.list.next) -#define rq_set_fifo_time(rq,exp) ((rq)->csd.list.next = (void *) (exp)) #define rq_entry_fifo(ptr) list_entry((ptr), struct request, queuelist) #define rq_fifo_clear(rq) do { \ list_del_init(&(rq)->queuelist); \ |
