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authorJaegeuk Kim <jaegeuk@kernel.org>2022-05-06 13:34:41 -0700
committerJaegeuk Kim <jaegeuk@kernel.org>2022-05-17 11:19:19 -0700
commitc81d5bae404abc6b257667e84d39b9b50c7063d4 (patch)
tree0ed9ab5c91bb5178f0d5cd06bd6347806323a912 /fs/f2fs/gc.c
parentc58d7c55de8bf7afd25d13d6eb8ef68782a51be9 (diff)
f2fs: do not stop GC when requiring a free section
The f2fs_gc uses a bitmap to indicate pinned sections, but when disabling chckpoint, we call f2fs_gc() with NULL_SEGNO which selects the same dirty segment as a victim all the time, resulting in checkpoint=disable failure, for example. Let's pick another one, if we fail to collect it. Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/gc.c')
-rw-r--r--fs/f2fs/gc.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index e275b72bc65f..d5fb426e0747 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -147,6 +147,7 @@ do_gc:
gc_control.init_gc_type = sync_mode ? FG_GC : BG_GC;
gc_control.no_bg_gc = foreground;
+ gc_control.nr_free_secs = foreground ? 1 : 0;
/* if return value is not zero, no victim was selected */
if (f2fs_gc(sbi, &gc_control))
@@ -1761,6 +1762,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi, struct f2fs_gc_control *gc_control)
unsigned int skipped_round = 0, round = 0;
trace_f2fs_gc_begin(sbi->sb, gc_type, gc_control->no_bg_gc,
+ gc_control->nr_free_secs,
get_pages(sbi, F2FS_DIRTY_NODES),
get_pages(sbi, F2FS_DIRTY_DENTS),
get_pages(sbi, F2FS_DIRTY_IMETA),
@@ -1823,12 +1825,13 @@ retry:
if (gc_type == FG_GC)
sbi->cur_victim_sec = NULL_SEGNO;
- if (gc_control->init_gc_type == FG_GC)
- goto stop;
-
- if (!has_not_enough_free_secs(sbi,
- (gc_type == FG_GC) ? sec_freed : 0, 0))
+ if (gc_control->init_gc_type == FG_GC ||
+ !has_not_enough_free_secs(sbi,
+ (gc_type == FG_GC) ? sec_freed : 0, 0)) {
+ if (gc_type == FG_GC && sec_freed < gc_control->nr_free_secs)
+ goto go_gc_more;
goto stop;
+ }
/* FG_GC stops GC by skip_count */
if (gc_type == FG_GC) {
@@ -1849,6 +1852,7 @@ retry:
if (ret)
goto stop;
}
+go_gc_more:
segno = NULL_SEGNO;
goto gc_more;