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| author |   Jens Axboe <axboe@kernel.dk> | 2017-08-08 17:49:47 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-08-09 13:09:20 -0600 |
| commit | 0609e0efc5e15195ecf8c6d2f2e890d98760e337 (patch) | |
| tree | 375a8c090f2b2022de3339bc3960e95b3878de7a /include | |
| parent | block: pass in queue to inflight accounting (diff) | |
| download | linux-dev-0609e0efc5e15195ecf8c6d2f2e890d98760e337.tar.xz linux-dev-0609e0efc5e15195ecf8c6d2f2e890d98760e337.zip | |
block: make part_in_flight() take an array of two ints
Instead of returning the count that matches the partition, pass
in an array of two ints. Index 0 will be filled with the inflight
count for the partition in question, and index 1 will filled
with the root inflight count, if the partition passed in is not the
root.
This is in preparation for being able to calculate both in one
go.
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/genhd.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 7f7427e00f9c..f2a3a26cdda1 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -378,11 +378,18 @@ static inline void part_dec_in_flight(struct request_queue *q, atomic_dec(&part_to_disk(part)->part0.in_flight[rw]); } -static inline int part_in_flight(struct request_queue *q, - struct hd_struct *part) +static inline void part_in_flight(struct request_queue *q, + struct hd_struct *part, + unsigned int inflight[2]) { - return atomic_read(&part->in_flight[0]) + + inflight[0] = atomic_read(&part->in_flight[0]) + atomic_read(&part->in_flight[1]); + if (part->partno) { + part = &part_to_disk(part)->part0; + inflight[1] = atomic_read(&part->in_flight[0]) + + atomic_read(&part->in_flight[1]); + } else + inflight[1] = 0; } static inline struct partition_meta_info *alloc_part_info(struct gendisk *disk) |