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| author | Omar Sandoval <osandov@fb.com> | 2018-05-09 02:08:49 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-05-09 08:33:03 -0600 |
| commit | 5238dcf4136fd7287be8e7d38752645bfa5782ec (patch) | |
| tree | 9ae32c74428227bd647d35c6422246c14e228f81 /block/blk-throttle.c | |
| parent | a8a45941706bca05ef9234a17f5e4a50b9835a44 (diff) | |
| download | linux-5238dcf4136fd7287be8e7d38752645bfa5782ec.tar.gz linux-5238dcf4136fd7287be8e7d38752645bfa5782ec.tar.bz2 linux-5238dcf4136fd7287be8e7d38752645bfa5782ec.zip | |
block: replace bio->bi_issue_stat with bio-specific type
struct blk_issue_stat is going away, and bio->bi_issue_stat doesn't even
use the blk-stats interface, so we can provide a separate implementation
specific for bios. The helpers work the same way as the blk-stats
helpers.
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-throttle.c')
| -rw-r--r-- | block/blk-throttle.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/block/blk-throttle.c b/block/blk-throttle.c index c5a131673733..35f9b8ff40d7 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -36,8 +36,6 @@ static int throtl_quantum = 32; */ #define LATENCY_FILTERED_HD (1000L) /* 1ms */ -#define SKIP_LATENCY (((u64)1) << BLK_STAT_RES_SHIFT) - static struct blkcg_policy blkcg_policy_throtl; /* A workqueue to queue throttle related work */ @@ -2139,7 +2137,7 @@ static void blk_throtl_assoc_bio(struct throtl_grp *tg, struct bio *bio) bio->bi_cg_private = tg; blkg_get(tg_to_blkg(tg)); } - blk_stat_set_issue(&bio->bi_issue_stat, bio_sectors(bio)); + bio_issue_init(&bio->bi_issue, bio_sectors(bio)); #endif } @@ -2251,7 +2249,7 @@ out: #ifdef CONFIG_BLK_DEV_THROTTLING_LOW if (throttled || !td->track_bio_latency) - bio->bi_issue_stat.stat |= SKIP_LATENCY; + bio->bi_issue.value |= BIO_ISSUE_THROTL_SKIP_LATENCY; #endif return throttled; } @@ -2302,8 +2300,8 @@ void blk_throtl_bio_endio(struct bio *bio) finish_time_ns = ktime_get_ns(); tg->last_finish_time = finish_time_ns >> 10; - start_time = blk_stat_time(&bio->bi_issue_stat) >> 10; - finish_time = __blk_stat_time(finish_time_ns) >> 10; + start_time = bio_issue_time(&bio->bi_issue) >> 10; + finish_time = __bio_issue_time(finish_time_ns) >> 10; if (!start_time || finish_time <= start_time) { blkg_put(tg_to_blkg(tg)); return; @@ -2311,16 +2309,15 @@ void blk_throtl_bio_endio(struct bio *bio) lat = finish_time - start_time; /* this is only for bio based driver */ - if (!(bio->bi_issue_stat.stat & SKIP_LATENCY)) - throtl_track_latency(tg->td, blk_stat_size(&bio->bi_issue_stat), - bio_op(bio), lat); + if (!(bio->bi_issue.value & BIO_ISSUE_THROTL_SKIP_LATENCY)) + throtl_track_latency(tg->td, bio_issue_size(&bio->bi_issue), + bio_op(bio), lat); if (tg->latency_target && lat >= tg->td->filtered_latency) { int bucket; unsigned int threshold; - bucket = request_bucket_index( - blk_stat_size(&bio->bi_issue_stat)); + bucket = request_bucket_index(bio_issue_size(&bio->bi_issue)); threshold = tg->td->avg_buckets[rw][bucket].latency + tg->latency_target; if (lat > threshold) |