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| author | Chao Yu <chao@kernel.org> | 2023-08-08 03:59:48 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2023-08-14 23:41:57 +0300 |
| commit | 9bf1dcbdfdc8892d9cfeaeab02519c0ecf17fe51 (patch) | |
| tree | c29635a9b46ba5683a6dee04b96d7118463a970c /fs/f2fs/super.c | |
| parent | bc3994ffa4cf23f55171943c713366132c3ff45d (diff) | |
| download | linux-9bf1dcbdfdc8892d9cfeaeab02519c0ecf17fe51.tar.xz | |
f2fs: fix to account gc stats correctly
As reported, status debugfs entry shows inconsistent GC stats as below:
GC calls: 6008 (BG: 6161)
- data segments : 3053 (BG: 3053)
- node segments : 2955 (BG: 2955)
Total GC calls is larger than BGGC calls, the reason is:
- f2fs_stat_info.call_count accounts total migrated section count
by f2fs_gc()
- f2fs_stat_info.bg_gc accounts total call times of f2fs_gc() from
background gc_thread
Another issue is gc_foreground_calls sysfs entry shows total GC call
count rather than FGGC call count.
This patch changes as below for fix:
- account GC calls and migrated segment count separately
- support to account migrated section count if it enables large section
mode
- fix to show correct value in gc_foreground_calls sysfs entry
Fixes: fc7100ea2a52 ("f2fs: Add f2fs stats to sysfs")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 26add77f9062..2bbef48bc5a3 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -2206,6 +2206,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi) .nr_free_secs = 1 }; f2fs_down_write(&sbi->gc_lock); + stat_inc_gc_call_count(sbi, FOREGROUND); err = f2fs_gc(sbi, &gc_control); if (err == -ENODATA) { err = 0; |