diff options
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 7 | ||||
| -rw-r--r-- | fs/f2fs/gc.c | 2 |
2 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index fdedf1ea944b..513296bb6f29 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -311,10 +311,13 @@ Description: Do background GC aggressively when set. Set to 0 by default. GC approach and turns SSR mode on. gc urgent low(2): lowers the bar of checking I/O idling in order to process outstanding discard commands and GC a - little bit aggressively. uses cost benefit GC approach. + little bit aggressively. always uses cost benefit GC approach, + and will override age-threshold GC approach if ATGC is enabled + at the same time. gc urgent mid(3): does GC forcibly in a period of given gc_urgent_sleep_time and executes a mid level of I/O idling check. - uses cost benefit GC approach. + always uses cost benefit GC approach, and will override + age-threshold GC approach if ATGC is enabled at the same time. What: /sys/fs/f2fs/<disk>/gc_urgent_sleep_time Date: August 2017 diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index e40bdd12e36d..3e1b6d2ff3a7 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -257,6 +257,8 @@ static int select_gc_type(struct f2fs_sb_info *sbi, int gc_type) switch (sbi->gc_mode) { case GC_IDLE_CB: + case GC_URGENT_LOW: + case GC_URGENT_MID: gc_mode = GC_CB; break; case GC_IDLE_GREEDY: |