[PATCH 1/2] f2fs: do not select same victim right again

[Jaegeuk Kim]

GC must avoid select the same victim again.

Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
---
 fs/f2fs/gc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index e88f98ddf396..15ca8bbb0b22 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -274,6 +274,9 @@ static unsigned int get_cb_cost(struct f2fs_sb_info *sbi, unsigned int segno)
 static inline unsigned int get_gc_cost(struct f2fs_sb_info *sbi,
 			unsigned int segno, struct victim_sel_policy *p)
 {
+	if (sbi->cur_victim_sec == GET_SEC_FROM_SEG(sbi, segno))
+		return UINT_MAX;
+
 	if (p->alloc_mode == SSR)
 		return get_seg_entry(sbi, segno)->ckpt_valid_blocks;
 
@@ -1326,9 +1329,6 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync,
 		round++;
 	}
 
-	if (gc_type == FG_GC)
-		sbi->cur_victim_sec = NULL_SEGNO;
-
 	if (sync)
 		goto stop;
 
-- 
2.19.0.605.g01d371f741-goog