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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>
This commit is contained in:
Jaegeuk Kim 2017-02-22 17:02:32 -08:00
parent c192f7a477
commit 70d625cbdb
1 changed files with 10 additions and 5 deletions
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15
fs/f2fs/segment.c
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@ -1528,17 +1528,22 @@ static int get_ssr_segment(struct f2fs_sb_info *sbi, int type)
{ {
struct curseg_info *curseg = CURSEG_I(sbi, type); struct curseg_info *curseg = CURSEG_I(sbi, type);
const struct victim_selection *v_ops = DIRTY_I(sbi)->v_ops; const struct victim_selection *v_ops = DIRTY_I(sbi)->v_ops;
int i; int i, n;
/* need_SSR() already forces to do this */ /* need_SSR() already forces to do this */
if (v_ops->get_victim(sbi, &(curseg)->next_segno, BG_GC, type, SSR)) if (v_ops->get_victim(sbi, &(curseg)->next_segno, BG_GC, type, SSR))
return 1; return 1;
if (IS_NODESEG(type)) /* For node segments, let's do SSR more intensively */
return 0; 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 <= n; i++) {
for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
if (i == type) if (i == type)
continue; continue;
if (v_ops->get_victim(sbi, &(curseg)->next_segno, if (v_ops->get_victim(sbi, &(curseg)->next_segno,