diff options
author | Shaohua Li <shli@fb.com> | 2015-01-15 20:32:25 -0500 |
---|---|---|
committer | Jens Axboe <axboe@fb.com> | 2015-01-23 16:15:46 -0500 |
commit | ee1b6f7aff94019c09e73837054979063f722046 (patch) | |
tree | 79c7b943d7c6d62fec1874afd2c50964de054aa0 /drivers/block | |
parent | bb5c3cdda37aad22996d6da2addd58cadc0436c0 (diff) |
block: support different tag allocation policy
The libata tag allocation is using a round-robin policy. Next patch will
make libata use block generic tag allocation, so let's add a policy to
tag allocation.
Currently two policies: FIFO (default) and round-robin.
Cc: Jens Axboe <axboe@fb.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block')
-rw-r--r-- | drivers/block/osdblk.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/osdblk.c b/drivers/block/osdblk.c index 79aa179305b5..e22942596207 100644 --- a/drivers/block/osdblk.c +++ b/drivers/block/osdblk.c | |||
@@ -423,7 +423,7 @@ static int osdblk_init_disk(struct osdblk_device *osdev) | |||
423 | } | 423 | } |
424 | 424 | ||
425 | /* switch queue to TCQ mode; allocate tag map */ | 425 | /* switch queue to TCQ mode; allocate tag map */ |
426 | rc = blk_queue_init_tags(q, OSDBLK_MAX_REQ, NULL); | 426 | rc = blk_queue_init_tags(q, OSDBLK_MAX_REQ, NULL, BLK_TAG_ALLOC_FIFO); |
427 | if (rc) { | 427 | if (rc) { |
428 | blk_cleanup_queue(q); | 428 | blk_cleanup_queue(q); |
429 | put_disk(disk); | 429 | put_disk(disk); |