diff options
| author | Sahitya Tummala <stummala@codeaurora.org> | 2018-09-19 14:18:47 +0530 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-09-19 15:55:14 -0700 |
| commit | a7d10cf3e4e3e308da01462a1ef8008233ee523d (patch) | |
| tree | e9efbbc09c649b95ae5d51bdbd388e472c472b3a /fs/f2fs/f2fs.h | |
| parent | 6f5c2ed0a26fae6904a88622c126dfb9369548a3 (diff) | |
| download | linux-a7d10cf3e4e3e308da01462a1ef8008233ee523d.tar.bz2 | |
f2fs: add new idle interval timing for discard and gc paths
This helps to control the frequency of submission of discard and
GC requests independently, based on the need.
Suggested-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index b676b82312e0..125f8b79a8c1 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1093,6 +1093,8 @@ enum { enum { CP_TIME, REQ_TIME, + DISCARD_TIME, + GC_TIME, MAX_TIME, }; @@ -1344,7 +1346,15 @@ static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) { - sbi->last_time[type] = jiffies; + unsigned long now = jiffies; + + sbi->last_time[type] = now; + + /* DISCARD_TIME and GC_TIME are based on REQ_TIME */ + if (type == REQ_TIME) { + sbi->last_time[DISCARD_TIME] = now; + sbi->last_time[GC_TIME] = now; + } } static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) @@ -1354,7 +1364,21 @@ static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) return time_after(jiffies, sbi->last_time[type] + interval); } -static inline bool is_idle(struct f2fs_sb_info *sbi) +static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi, + int type) +{ + unsigned long interval = sbi->interval_time[type] * HZ; + unsigned int wait_ms = 0; + long delta; + + delta = (sbi->last_time[type] + interval) - jiffies; + if (delta > 0) + wait_ms = jiffies_to_msecs(delta); + + return wait_ms; +} + +static inline bool is_idle(struct f2fs_sb_info *sbi, int type) { struct block_device *bdev = sbi->sb->s_bdev; struct request_queue *q = bdev_get_queue(bdev); @@ -1363,7 +1387,7 @@ static inline bool is_idle(struct f2fs_sb_info *sbi) if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC]) return false; - return f2fs_time_over(sbi, REQ_TIME); + return f2fs_time_over(sbi, type); } /* |