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| author | Bart Van Assche <bart.vanassche@wdc.com> | 2018-03-16 10:31:11 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-03-17 14:41:17 -0600 |
| commit | ec6dcf63c55c8b09b44fe5990082b07baf139c69 (patch) | |
| tree | 637886345d36f7a28905674b44e653185a24154e | |
| parent | 4c6994806f708559c2812b73501406e21ae5dcd0 (diff) | |
| download | linux-ec6dcf63c55c8b09b44fe5990082b07baf139c69.tar.bz2 | |
blk-mq-debugfs: Show more request state information
Since commit 634f9e4631a8 ("blk-mq: remove REQ_ATOM_COMPLETE usages
from blk-mq") blk_rq_is_complete() only reports whether or not a
request has completed for legacy queues. Hence modify the
blk-mq-debugfs code such that it shows the blk-mq request state
again.
Fixes: 634f9e4631a8 ("blk-mq: remove REQ_ATOM_COMPLETE usages from blk-mq")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/blk-mq-debugfs.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index bd21d5b9f65f..58b3b79cbe83 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -350,6 +350,20 @@ static const char *const rqf_name[] = { }; #undef RQF_NAME +static const char *const blk_mq_rq_state_name_array[] = { + [MQ_RQ_IDLE] = "idle", + [MQ_RQ_IN_FLIGHT] = "in_flight", + [MQ_RQ_COMPLETE] = "complete", +}; + +static const char *blk_mq_rq_state_name(enum mq_rq_state rq_state) +{ + if (WARN_ON_ONCE((unsigned int)rq_state > + ARRAY_SIZE(blk_mq_rq_state_name_array))) + return "(?)"; + return blk_mq_rq_state_name_array[rq_state]; +} + int __blk_mq_debugfs_rq_show(struct seq_file *m, struct request *rq) { const struct blk_mq_ops *const mq_ops = rq->q->mq_ops; @@ -366,7 +380,7 @@ int __blk_mq_debugfs_rq_show(struct seq_file *m, struct request *rq) seq_puts(m, ", .rq_flags="); blk_flags_show(m, (__force unsigned int)rq->rq_flags, rqf_name, ARRAY_SIZE(rqf_name)); - seq_printf(m, ", complete=%d", blk_rq_is_complete(rq)); + seq_printf(m, ", .state=%s", blk_mq_rq_state_name(blk_mq_rq_state(rq))); seq_printf(m, ", .tag=%d, .internal_tag=%d", rq->tag, rq->internal_tag); if (mq_ops->show_rq) |