linux-kernel - [PATCH 2/2] f2fs: fix the case when there is no free segment to allocate for CURSEG_WARM

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Date:   Fri, 17 Feb 2017 20:53:07 +0800
From:   Yunlong Song <yunlong.song@...wei.com>
To:     <jaegeuk@...nel.org>, <cm224.lee@...sung.com>,
        <yuchao0@...wei.com>, <chao@...nel.org>, <sylinux@....com>,
        <yunlong.song@...wei.com>, <miaoxie@...wei.com>,
        <zhouxiyu@...wei.com>
CC:     <bintian.wang@...wei.com>, <linux-fsdevel@...r.kernel.org>,
        <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/2] f2fs: fix the case when there is no free segment to allocate for CURSEG_WARM_NODE

If the free segments are used up, then new_curseg will fail for
CURSEG_WARM_NODE, in this case, we should use change_curseg instead of
new_curseg.

Signed-off-by: Yunlong Song <yunlong.song@...wei.com>
---
 fs/f2fs/segment.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index df2ff5c..32820cd 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1564,8 +1564,6 @@ static void allocate_segment_by_default(struct f2fs_sb_info *sbi,
 
 	if (force)
 		new_curseg(sbi, type, true);
-	else if (type == CURSEG_WARM_NODE)
-		new_curseg(sbi, type, false);
 	else if (curseg->alloc_type == LFS && is_next_segment_free(sbi, type))
 		new_curseg(sbi, type, false);
 	else if (need_SSR(sbi) && get_ssr_segment(sbi, type))
-- 
1.8.5.2