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f2fs: add to account skip count of background GC

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This patch adds to account skip count of background GC, and show stat
info via 'status' debugfs entry.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2018-09-29 18:31:28 +08:00 • committed by Jaegeuk Kim
parent b63e7be590
commit 274bd9ba39
3 changed files with 22 additions and 3 deletions
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4
fs/f2fs/debug.c
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@ -101,6 +101,8 @@ static void update_general_status(struct f2fs_sb_info *sbi)
si->avail_nids = NM_I(sbi)->available_nids;
si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID];
si->bg_gc = sbi->bg_gc;
si->io_skip_bggc = sbi->io_skip_bggc;
si->other_skip_bggc = sbi->other_skip_bggc;
si->skipped_atomic_files[BG_GC] = sbi->skipped_atomic_files[BG_GC];
si->skipped_atomic_files[FG_GC] = sbi->skipped_atomic_files[FG_GC];
si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg)
@ -355,6 +357,8 @@ static int stat_show(struct seq_file *s, void *v)
si->skipped_atomic_files[BG_GC] +
si->skipped_atomic_files[FG_GC],
si->skipped_atomic_files[BG_GC]);
seq_printf(s, "BG skip : IO: %u, Other: %u\n",
si->io_skip_bggc, si->other_skip_bggc);
seq_puts(s, "\nExtent Cache:\n");
seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n",
si->hit_largest, si->hit_cached,