On Thu, Apr 27, 2017 at 08:54:34AM -0700, Bart Van Assche wrote:
> 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.
Reviewed-by: Omar Sandoval <osan...@fb.com>
> Signed-off-by: Bart Van Assche <bart.vanass...@sandisk.com>
> Cc: Omar Sandoval <osan...@fb.com>
> Cc: Hannes Reinecke <h...@suse.com>
> ---
> block/blk-mq-debugfs.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c
> index bcd2a7d4a3a5..9cb673bc7230 100644
> --- a/block/blk-mq-debugfs.c
> +++ b/block/blk-mq-debugfs.c
> @@ -308,6 +308,12 @@ static const char *const rqf_name[] = {
> [ilog2((__force u32)RQF_SPECIAL_PAYLOAD)] = "SPECIAL_PAYLOAD",
> };
>
> +static const char *const rqaf_name[] = {
> + [REQ_ATOM_COMPLETE] = "COMPLETE",
> + [REQ_ATOM_STARTED] = "STARTED",
> + [REQ_ATOM_POLL_SLEPT] = "POLL_SLEPT",
> +};
> +
> static int blk_mq_debugfs_rq_show(struct seq_file *m, void *v)
> {
> struct request *rq = list_entry_rq(v);
> @@ -325,6 +331,8 @@ static int blk_mq_debugfs_rq_show(struct seq_file *m,
> void *v)
> 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
>
