[PATCH v1 0/5] block: blk-mq: support blk_cleanup_queue on mq

From: Ming Lei
Date: Thu Dec 26 2013 - 08:31:53 EST


Hi,

The 1st one moves request initializtion out of completion handler.

The following 2 patches support drain/sync mq queue in blk_cleanup_queue.

The 4th patch calls blk_cleanup_queue() in removing device path
to fix queue leak problem.

The 5th patch doesn't export blk_mq_free_queue() because the function
is called in release handler of queue kobject, and drivers needn't
to call it.

V1:
- add patch 1/5
- add comments on blk_execute_rq_nowait 2/5
- set QUEUE_FLAG_DEAD for MQ 2/5
- use __blk_mq_drain_queue() helper 2/5

block/blk-core.c | 21 ++++++++++++--
block/blk-exec.c | 4 +++
block/blk-mq.c | 71 +++++++++++++++++++++++-----------------------
block/blk-mq.h | 2 ++
block/blk-sysfs.c | 1 +
drivers/block/null_blk.c | 10 ++-----
include/linux/blk-mq.h | 1 -
7 files changed, 63 insertions(+), 47 deletions(-)


Thanks,
--
Ming Lei


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