* [PATCH] f2fs: should get a victim from retrials
@ 2015-09-21 19:12 ` Jaegeuk Kim
0 siblings, 0 replies; 5+ messages in thread
From: Jaegeuk Kim @ 2015-09-21 19:12 UTC (permalink / raw)
To: linux-kernel, linux-fsdevel, linux-f2fs-devel; +Cc: Jaegeuk Kim
If we do not call get_victim first, we cannot get a new victim for retrial
path.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/gc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 782b8e7..e932740 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -823,7 +823,8 @@ gc_more:
write_checkpoint(sbi, &cpc);
}
- if (segno == NULL_SEGNO && !__get_victim(sbi, &segno, gc_type))
+ /* should call __get_victim first to get a victim from retrial path */
+ if (!__get_victim(sbi, &segno, gc_type) && segno == NULL_SEGNO)
goto stop;
ret = 0;
--
2.1.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH] f2fs: should get a victim from retrials
@ 2015-09-21 19:12 ` Jaegeuk Kim
0 siblings, 0 replies; 5+ messages in thread
From: Jaegeuk Kim @ 2015-09-21 19:12 UTC (permalink / raw)
To: linux-kernel, linux-fsdevel, linux-f2fs-devel; +Cc: Jaegeuk Kim
If we do not call get_victim first, we cannot get a new victim for retrial
path.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/gc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 782b8e7..e932740 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -823,7 +823,8 @@ gc_more:
write_checkpoint(sbi, &cpc);
}
- if (segno == NULL_SEGNO && !__get_victim(sbi, &segno, gc_type))
+ /* should call __get_victim first to get a victim from retrial path */
+ if (!__get_victim(sbi, &segno, gc_type) && segno == NULL_SEGNO)
goto stop;
ret = 0;
--
2.1.1
------------------------------------------------------------------------------
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH v2] f2fs: should get a victim from retrials
2015-09-21 19:12 ` Jaegeuk Kim
(?)
@ 2015-09-28 21:43 ` Jaegeuk Kim
2015-09-30 9:00 ` Chao Yu
-1 siblings, 1 reply; 5+ messages in thread
From: Jaegeuk Kim @ 2015-09-28 21:43 UTC (permalink / raw)
To: linux-kernel, linux-fsdevel, linux-f2fs-devel
Change log from v1:
o avoid __get_victim call twice, since each call registers the victim in bitmap
>From 45c3aaea805751e5c1899dd9c76d89e6f73a7a8f Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Fri, 18 Sep 2015 17:33:00 -0700
Subject: [PATCH] f2fs: should get a victim from retrials
If we do not call get_victim first, we cannot get a new victim for retrial
path.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/gc.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index b6e03eb..343b096 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -799,8 +799,7 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi, unsigned int segno,
int f2fs_gc(struct f2fs_sb_info *sbi)
{
- unsigned int segno = NULL_SEGNO;
- unsigned int i;
+ unsigned int segno, i;
int gc_type = BG_GC;
int sec_freed = 0;
int ret = -1;
@@ -812,6 +811,8 @@ int f2fs_gc(struct f2fs_sb_info *sbi)
cpc.reason = __get_cp_reason(sbi);
gc_more:
+ segno = NULL_SEGNO;
+
if (unlikely(!(sbi->sb->s_flags & MS_ACTIVE)))
goto stop;
if (unlikely(f2fs_cp_error(sbi)))
--
2.1.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* RE: [f2fs-dev] [PATCH v2] f2fs: should get a victim from retrials
2015-09-28 21:43 ` [PATCH v2] " Jaegeuk Kim
@ 2015-09-30 9:00 ` Chao Yu
0 siblings, 0 replies; 5+ messages in thread
From: Chao Yu @ 2015-09-30 9:00 UTC (permalink / raw)
To: 'Jaegeuk Kim', linux-kernel, linux-fsdevel, linux-f2fs-devel
> -----Original Message-----
> From: Jaegeuk Kim [mailto:jaegeuk@kernel.org]
> Sent: Tuesday, September 29, 2015 5:44 AM
> To: linux-kernel@vger.kernel.org; linux-fsdevel@vger.kernel.org;
> linux-f2fs-devel@lists.sourceforge.net
> Subject: Re: [f2fs-dev] [PATCH v2] f2fs: should get a victim from retrials
>
> Change log from v1:
> o avoid __get_victim call twice, since each call registers the victim in bitmap
>
> >From 45c3aaea805751e5c1899dd9c76d89e6f73a7a8f Mon Sep 17 00:00:00 2001
> From: Jaegeuk Kim <jaegeuk@kernel.org>
> Date: Fri, 18 Sep 2015 17:33:00 -0700
> Subject: [PATCH] f2fs: should get a victim from retrials
>
> If we do not call get_victim first, we cannot get a new victim for retrial
> path.
>
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v2] f2fs: should get a victim from retrials
@ 2015-09-30 9:00 ` Chao Yu
0 siblings, 0 replies; 5+ messages in thread
From: Chao Yu @ 2015-09-30 9:00 UTC (permalink / raw)
To: 'Jaegeuk Kim', linux-kernel, linux-fsdevel, linux-f2fs-devel
> -----Original Message-----
> From: Jaegeuk Kim [mailto:jaegeuk@kernel.org]
> Sent: Tuesday, September 29, 2015 5:44 AM
> To: linux-kernel@vger.kernel.org; linux-fsdevel@vger.kernel.org;
> linux-f2fs-devel@lists.sourceforge.net
> Subject: Re: [f2fs-dev] [PATCH v2] f2fs: should get a victim from retrials
>
> Change log from v1:
> o avoid __get_victim call twice, since each call registers the victim in bitmap
>
> >From 45c3aaea805751e5c1899dd9c76d89e6f73a7a8f Mon Sep 17 00:00:00 2001
> From: Jaegeuk Kim <jaegeuk@kernel.org>
> Date: Fri, 18 Sep 2015 17:33:00 -0700
> Subject: [PATCH] f2fs: should get a victim from retrials
>
> If we do not call get_victim first, we cannot get a new victim for retrial
> path.
>
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
------------------------------------------------------------------------------
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2015-09-30 9:01 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-09-21 19:12 [PATCH] f2fs: should get a victim from retrials Jaegeuk Kim
2015-09-21 19:12 ` Jaegeuk Kim
2015-09-28 21:43 ` [PATCH v2] " Jaegeuk Kim
2015-09-30 9:00 ` [f2fs-dev] " Chao Yu
2015-09-30 9:00 ` Chao Yu
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