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| author | Bart Van Assche <bart.vanassche@sandisk.com> | 2017-06-01 08:55:10 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-06-01 13:02:56 -0600 |
| commit | c0cb1c6d39060ce04470b10347b7b6f1df77bef5 (patch) | |
| tree | f48a010248393050aafc2f366ce6b1b2585409f5 /block/blk-mq-debugfs.c | |
| parent | 03ea8ad78cfb2910862c8dfcd2a627fc04097db2 (diff) | |
| download | linux-c0cb1c6d39060ce04470b10347b7b6f1df77bef5.tar.gz linux-c0cb1c6d39060ce04470b10347b7b6f1df77bef5.tar.bz2 linux-c0cb1c6d39060ce04470b10347b7b6f1df77bef5.zip | |
blk-mq-debugfs: Show atomic request flags
When analyzing e.g. queue lockups it is important to know whether
or not a request has already been started. Hence also show the
atomic request flags.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Eduardo Valentin <eduval@amazon.com>
Cc: Omar Sandoval <osandov@fb.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq-debugfs.c')
| -rw-r--r-- | block/blk-mq-debugfs.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index 803aed4d7221..d56ddd7a1285 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -267,6 +267,14 @@ static const char *const rqf_name[] = { }; #undef RQF_NAME +#define RQAF_NAME(name) [REQ_ATOM_##name] = #name +static const char *const rqaf_name[] = { + RQAF_NAME(COMPLETE), + RQAF_NAME(STARTED), + RQAF_NAME(POLL_SLEPT), +}; +#undef RQAF_NAME + 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; @@ -283,6 +291,8 @@ 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_puts(m, ", .atomic_flags="); + blk_flags_show(m, rq->atomic_flags, rqaf_name, ARRAY_SIZE(rqaf_name)); seq_printf(m, ", .tag=%d, .internal_tag=%d", rq->tag, rq->internal_tag); if (mq_ops->show_rq) |