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| author | Omar Sandoval | 2018-04-26 09:21:59 +0200 |
|---|---|---|
| committer | Jens Axboe | 2018-04-26 17:02:01 +0200 |
| commit | bf0ddaba65ddbb2715af97041da8e7a45b2d8628 (patch) | |
| tree | 42ecea860351829817753e8ce2c4205a8aaff8b1 /block/genhd.c | |
| parent | blk-mq: count allocated but not started requests in iostats inflight (diff) | |
| download | kernel-qcow2-linux-bf0ddaba65ddbb2715af97041da8e7a45b2d8628.tar.gz kernel-qcow2-linux-bf0ddaba65ddbb2715af97041da8e7a45b2d8628.tar.xz kernel-qcow2-linux-bf0ddaba65ddbb2715af97041da8e7a45b2d8628.zip | |
blk-mq: fix sysfs inflight counter
When the blk-mq inflight implementation was added, /proc/diskstats was
converted to use it, but /sys/block/$dev/inflight was not. Fix it by
adding another helper to count in-flight requests by data direction.
Fixes: f299b7c7a9de ("blk-mq: provide internal in-flight variant")
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/genhd.c')
| -rw-r--r-- | block/genhd.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/block/genhd.c b/block/genhd.c index dc7e089373b9..c4513fe1adda 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -82,6 +82,18 @@ void part_in_flight(struct request_queue *q, struct hd_struct *part, } } +void part_in_flight_rw(struct request_queue *q, struct hd_struct *part, + unsigned int inflight[2]) +{ + if (q->mq_ops) { + blk_mq_in_flight_rw(q, part, inflight); + return; + } + + inflight[0] = atomic_read(&part->in_flight[0]); + inflight[1] = atomic_read(&part->in_flight[1]); +} + struct hd_struct *__disk_get_part(struct gendisk *disk, int partno) { struct disk_part_tbl *ptbl = rcu_dereference(disk->part_tbl); |