From 70d625cbdbbb99e38953b8b7ac792a6471e68efb Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Wed, 22 Feb 2017 17:02:32 -0800 Subject: [PATCH] f2fs: do SSR for node segments more aggresively This patch gives more SSR chances for node blocks. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/segment.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 630e704..d780ecc 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1528,17 +1528,22 @@ static int get_ssr_segment(struct f2fs_sb_info *sbi, int type) { struct curseg_info *curseg = CURSEG_I(sbi, type); const struct victim_selection *v_ops = DIRTY_I(sbi)->v_ops; - int i; + int i, n; /* need_SSR() already forces to do this */ if (v_ops->get_victim(sbi, &(curseg)->next_segno, BG_GC, type, SSR)) return 1; - if (IS_NODESEG(type)) - return 0; + /* For node segments, let's do SSR more intensively */ + if (IS_NODESEG(type)) { + i = CURSEG_HOT_NODE; + n = CURSEG_COLD_NODE; + } else { + i = CURSEG_HOT_DATA; + n = CURSEG_COLD_DATA; + } - /* For data segments, let's do SSR more intensively */ - for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) { + for (; i <= n; i++) { if (i == type) continue; if (v_ops->get_victim(sbi, &(curseg)->next_segno, -- 2.7.4