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| author | Ingo Molnar <[email protected]> | 2013-11-06 05:39:45 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2013-11-06 05:39:45 +0000 |
| commit | 97c53b402fcadb50201c23914f614bf8430d9c20 (patch) | |
| tree | 3c9b94e866d150c3a2d8ac853e388c38fade8b45 /drivers/md/bcache/util.c | |
| parent | hung_task debugging: Add tracepoint to report the hang (diff) | |
| parent | Linux 3.12 (diff) | |
| download | kernel-97c53b402fcadb50201c23914f614bf8430d9c20.tar.gz kernel-97c53b402fcadb50201c23914f614bf8430d9c20.zip | |
Merge tag 'v3.12' into core/locking to pick up mutex upates
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/md/bcache/util.c')
| -rw-r--r-- | drivers/md/bcache/util.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/md/bcache/util.c b/drivers/md/bcache/util.c index 98eb81159a22..420dad545c7d 100644 --- a/drivers/md/bcache/util.c +++ b/drivers/md/bcache/util.c @@ -190,7 +190,16 @@ void bch_time_stats_update(struct time_stats *stats, uint64_t start_time) stats->last = now ?: 1; } -unsigned bch_next_delay(struct ratelimit *d, uint64_t done) +/** + * bch_next_delay() - increment @d by the amount of work done, and return how + * long to delay until the next time to do some work. + * + * @d - the struct bch_ratelimit to update + * @done - the amount of work done, in arbitrary units + * + * Returns the amount of time to delay by, in jiffies + */ +uint64_t bch_next_delay(struct bch_ratelimit *d, uint64_t done) { uint64_t now = local_clock(); |