From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Bart Van Assche To: Jens Axboe CC: , Christoph Hellwig , "Bart Van Assche" , Omar Sandoval , Ming Lei Subject: [PATCH v2 1/4] blk-mq-debugfs: Show atomic request flags Date: Wed, 31 May 2017 14:30:47 -0700 Message-ID: <20170531213050.30276-2-bart.vanassche@sandisk.com> In-Reply-To: <20170531213050.30276-1-bart.vanassche@sandisk.com> References: <20170531213050.30276-1-bart.vanassche@sandisk.com> MIME-Version: 1.0 Content-Type: text/plain Return-Path: Bart.VanAssche@sandisk.com List-ID: 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 Reviewed-by: Hannes Reinecke Cc: Omar Sandoval Cc: Christoph Hellwig Cc: Ming Lei --- block/blk-mq-debugfs.c | 10 ++++++++++ 1 file changed, 10 insertions(+) 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) -- 2.12.2