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| author | Omar Sandoval <osandov@fb.com> | 2018-05-09 02:08:51 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-05-09 08:33:06 -0600 |
| commit | 84c7afcebed913c93d50f116b046b7f0d8ec0cdc (patch) | |
| tree | 0c4b9bc41c6ef64b53ee51251ee3b957b2533d05 /block/bfq-iosched.h | |
| parent | 544ccc8dc904db55d4576c27a1eb66a888ffacea (diff) | |
| download | linux-84c7afcebed913c93d50f116b046b7f0d8ec0cdc.tar.gz linux-84c7afcebed913c93d50f116b046b7f0d8ec0cdc.tar.bz2 linux-84c7afcebed913c93d50f116b046b7f0d8ec0cdc.zip | |
block: use ktime_get_ns() instead of sched_clock() for cfq and bfq
cfq and bfq have some internal fields that use sched_clock() which can
trivially use ktime_get_ns() instead. Their timestamp fields in struct
request can also use ktime_get_ns(), which resolves the 8 year old
comment added by commit 28f4197e5d47 ("block: disable preemption before
using sched_clock()").
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bfq-iosched.h')
| -rw-r--r-- | block/bfq-iosched.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h index ae2f3dadec44..8ec7ff92cd6f 100644 --- a/block/bfq-iosched.h +++ b/block/bfq-iosched.h @@ -732,9 +732,9 @@ struct bfqg_stats { /* total time with empty current active q with other requests queued */ struct blkg_stat empty_time; /* fields after this shouldn't be cleared on stat reset */ - uint64_t start_group_wait_time; - uint64_t start_idle_time; - uint64_t start_empty_time; + u64 start_group_wait_time; + u64 start_idle_time; + u64 start_empty_time; uint16_t flags; #endif /* CONFIG_BFQ_GROUP_IOSCHED && CONFIG_DEBUG_BLK_CGROUP */ }; @@ -856,8 +856,8 @@ void bfqg_stats_update_io_add(struct bfq_group *bfqg, struct bfq_queue *bfqq, unsigned int op); void bfqg_stats_update_io_remove(struct bfq_group *bfqg, unsigned int op); void bfqg_stats_update_io_merged(struct bfq_group *bfqg, unsigned int op); -void bfqg_stats_update_completion(struct bfq_group *bfqg, uint64_t start_time, - uint64_t io_start_time, unsigned int op); +void bfqg_stats_update_completion(struct bfq_group *bfqg, u64 start_time_ns, + u64 io_start_time_ns, unsigned int op); void bfqg_stats_update_dequeue(struct bfq_group *bfqg); void bfqg_stats_set_start_empty_time(struct bfq_group *bfqg); void bfqg_stats_update_idle_time(struct bfq_group *bfqg); |