From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu, 23 Feb 2017 01:02:32 +0000 (-0800)
Subject: f2fs: do SSR for node segments more aggresively
X-Git-Tag: Ubuntu-5.10.0-12.13~10770^2~30
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=70d625cbdbbb99e38953b8b7ac792a6471e68efb;p=mirror_ubuntu-hirsute-kernel.git

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 630e7045c53e..d780ecccc4ac 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,