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| author | Bart Van Assche <bart.vanassche@wdc.com> | 2017-10-16 16:32:26 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-11-03 12:33:56 -0600 |
| commit | 21e768b442bb587123ea924620e74d6e5655d717 (patch) | |
| tree | 85982dcf7d7e98c8e22f5f0addc32796273f536c /block/blk-core.c | |
| parent | c2e82a234873d905260a3bd0aca9577e85619bda (diff) | |
| download | lwn-21e768b442bb587123ea924620e74d6e5655d717.tar.gz lwn-21e768b442bb587123ea924620e74d6e5655d717.zip | |
blk-mq: Make blk_mq_get_request() error path less confusing
blk_mq_get_tag() can modify data->ctx. This means that in the
error path of blk_mq_get_request() data->ctx should be passed to
blk_mq_put_ctx() instead of local_ctx. Note: since blk_mq_put_ctx()
ignores its argument, this patch does not change any functionality.
References: commit 1ad43c0078b7 ("blk-mq: don't leak preempt counter/q_usage_counter when allocating rq failed")
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-core.c')
0 files changed, 0 insertions, 0 deletions