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authorTejun Heo <tj@kernel.org>2012-03-05 13:14:58 -0800
committerJens Axboe <axboe@kernel.dk>2012-03-06 21:27:21 +0100
commitd732580b4eb31553c63744a47d590f770cafb8f0 (patch)
treeea4e8e21df1b639603693e6f5fdfc5a620cd8737 /block/blk.h
parentb2fab5acd28ead6f0dd6c3996ba23f0ef1772f15 (diff)
downloadop-kernel-dev-d732580b4eb31553c63744a47d590f770cafb8f0.zip
op-kernel-dev-d732580b4eb31553c63744a47d590f770cafb8f0.tar.gz
block: implement blk_queue_bypass_start/end()
Rename and extend elv_queisce_start/end() to blk_queue_bypass_start/end() which are exported and supports nesting via @q->bypass_depth. Also add blk_queue_bypass() to test bypass state. This will be further extended and used for blkio_group management. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk.h')
-rw-r--r--block/blk.h6
1 files changed, 2 insertions, 4 deletions
diff --git a/block/blk.h b/block/blk.h
index 9c12f80..7422f31 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -23,7 +23,8 @@ void blk_rq_bio_prep(struct request_queue *q, struct request *rq,
struct bio *bio);
int blk_rq_append_bio(struct request_queue *q, struct request *rq,
struct bio *bio);
-void blk_drain_queue(struct request_queue *q, bool drain_all);
+void blk_queue_bypass_start(struct request_queue *q);
+void blk_queue_bypass_end(struct request_queue *q);
void blk_dequeue_request(struct request *rq);
void __blk_queue_free_tags(struct request_queue *q);
bool __blk_end_bidi_request(struct request *rq, int error,
@@ -144,9 +145,6 @@ void blk_queue_congestion_threshold(struct request_queue *q);
int blk_dev_init(void);
-void elv_quiesce_start(struct request_queue *q);
-void elv_quiesce_end(struct request_queue *q);
-
/*
* Return the threshold (number of used requests) at which the queue is
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