f2fs: do SSR for node segments more aggresively

This patch gives more SSR chances for node blocks.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 630e704..d780ecc 100644 (file)
--- 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,