From: Jaegeuk Kim <jaegeuk@kernel.org>
To: Chao Yu <yuchao0@huawei.com>
Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH 1/2] f2fs: do not select same victim right again
Date: Mon, 9 Sep 2019 09:06:54 +0100 [thread overview]
Message-ID: <20190909080654.GD21625@jaegeuk-macbookpro.roam.corp.google.com> (raw)
In-Reply-To: <69933b7f-48cc-47f9-ba6f-b5ca8f733cba@huawei.com>
On 09/09, Chao Yu wrote:
> On 2019/9/9 9:25, Jaegeuk Kim wrote:
> > GC must avoid select the same victim again.
>
> Blocks in previous victim will occupy addition free segment, I doubt after this
> change, FGGC may encounter out-of-free space issue more frequently.
Hmm, actually this change seems wrong by sec_usage_check().
We may be able to avoid this only in the suspicious loop?
---
fs/f2fs/gc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index e88f98ddf396..5877bd729689 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1326,7 +1326,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync,
round++;
}
- if (gc_type == FG_GC)
+ if (gc_type == FG_GC && seg_freed)
sbi->cur_victim_sec = NULL_SEGNO;
if (sync)
--
2.19.0.605.g01d371f741-goog
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next prev parent reply other threads:[~2019-09-09 8:07 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-09 1:25 [f2fs-dev] [PATCH 1/2] f2fs: do not select same victim right again Jaegeuk Kim
2019-09-09 1:25 ` [f2fs-dev] [PATCH 2/2] f2fs: avoid infinite GC loop due to stale atomic files Jaegeuk Kim
2019-09-09 3:03 ` Chao Yu
2019-09-09 7:30 ` Jaegeuk Kim
2019-09-09 7:54 ` Chao Yu
2019-09-09 8:01 ` Jaegeuk Kim
2019-09-09 8:05 ` Chao Yu
2019-09-09 8:21 ` Jaegeuk Kim
2019-09-09 8:27 ` Chao Yu
2019-09-09 8:38 ` Jaegeuk Kim
2019-09-09 8:44 ` Jaegeuk Kim
2019-09-09 11:26 ` Chao Yu
2019-09-09 14:34 ` Jaegeuk Kim
2019-09-10 0:59 ` Chao Yu
2019-09-10 11:58 ` Jaegeuk Kim
2019-09-10 12:04 ` Chao Yu
2019-09-10 12:09 ` Jaegeuk Kim
2019-09-16 1:15 ` Chao Yu
2019-09-09 2:56 ` [f2fs-dev] [PATCH 1/2] f2fs: do not select same victim right again Chao Yu
2019-09-09 8:06 ` Jaegeuk Kim [this message]
2019-09-09 11:32 ` Chao Yu
2019-09-09 12:04 ` Jaegeuk Kim
2019-09-16 1:22 ` Chao Yu
2019-09-16 15:37 ` Jaegeuk Kim
2019-09-17 1:42 ` Chao Yu
2019-09-17 20:55 ` Jaegeuk Kim
2019-09-18 1:43 ` Chao Yu
2019-09-18 3:12 ` Jaegeuk Kim
2019-09-18 3:26 ` Chao Yu
2019-09-18 16:47 ` Jaegeuk Kim
2019-09-19 0:53 ` Chao Yu
2019-09-19 17:11 ` Jaegeuk Kim
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