diff options
| author | Daeho Jeong <daehojeong@google.com> | 2021-12-08 16:41:51 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-12-10 15:48:33 -0800 |
| commit | 325163e9892b627fc9fb1af51e51f0f95dded517 (patch) | |
| tree | d2a60da55a411960f13c7a0aed39e4b87a05fb52 /fs/f2fs/gc.c | |
| parent | 77900c45ee5cd5da63bd4d818a41dbdf367e81cd (diff) | |
| download | linux-325163e9892b627fc9fb1af51e51f0f95dded517.tar.bz2 | |
f2fs: add gc_urgent_high_remaining sysfs node
Added a new sysfs node called gc_urgent_high_remaining. The user can
set the trial count limit for GC urgent high mode with this value. If
GC thread gets to the limit, the mode will turn back to GC normal mode.
By default, the value is zero, which means there is no limit like before.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/gc.c')
| -rw-r--r-- | fs/f2fs/gc.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index b538cbcba351..7fbe46477a5a 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -92,6 +92,18 @@ static int gc_thread_func(void *data) * So, I'd like to wait some time to collect dirty segments. */ if (sbi->gc_mode == GC_URGENT_HIGH) { + spin_lock(&sbi->gc_urgent_high_lock); + if (sbi->gc_urgent_high_limited) { + if (!sbi->gc_urgent_high_remaining) { + sbi->gc_urgent_high_limited = false; + spin_unlock(&sbi->gc_urgent_high_lock); + sbi->gc_mode = GC_NORMAL; + continue; + } + sbi->gc_urgent_high_remaining--; + } + spin_unlock(&sbi->gc_urgent_high_lock); + wait_ms = gc_th->urgent_sleep_time; down_write(&sbi->gc_lock); goto do_gc; |