* Patch "Revert "f2fs: put allocate_segment after refresh_sit_entry"" has been added to the 4.11-stable tree
@ 2017-05-18 7:45 gregkh
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From: gregkh @ 2017-05-18 7:45 UTC (permalink / raw)
To: jaegeuk, gregkh; +Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
Revert "f2fs: put allocate_segment after refresh_sit_entry"
to the 4.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
revert-f2fs-put-allocate_segment-after-refresh_sit_entry.patch
and it can be found in the queue-4.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From c6f82fe90d7458e5fa190a6820bfc24f96b0de4e Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Tue, 4 Apr 2017 16:45:30 -0700
Subject: Revert "f2fs: put allocate_segment after refresh_sit_entry"
From: Jaegeuk Kim <jaegeuk@kernel.org>
commit c6f82fe90d7458e5fa190a6820bfc24f96b0de4e upstream.
This reverts commit 3436c4bdb30de421d46f58c9174669fbcfd40ce0.
This makes a leak to register dirty segments. I reproduced the issue by
modified postmark which injects a lot of file create/delete/update and
finally triggers huge number of SSR allocations.
[Jaegeuk Kim: Change missing incorrect comment]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/f2fs/segment.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1788,15 +1788,14 @@ void allocate_data_block(struct f2fs_sb_
stat_inc_block_count(sbi, curseg);
+ if (!__has_curseg_space(sbi, type))
+ sit_i->s_ops->allocate_segment(sbi, type, false);
/*
- * SIT information should be updated before segment allocation,
- * since SSR needs latest valid block information.
+ * SIT information should be updated after segment allocation,
+ * since we need to keep dirty segments precisely under SSR.
*/
refresh_sit_entry(sbi, old_blkaddr, *new_blkaddr);
- if (!__has_curseg_space(sbi, type))
- sit_i->s_ops->allocate_segment(sbi, type, false);
-
mutex_unlock(&sit_i->sentry_lock);
if (page && IS_NODESEG(type))
Patches currently in stable-queue which might be from jaegeuk@kernel.org are
queue-4.11/f2fs-fix-wrong-max-cost-initialization.patch
queue-4.11/f2fs-make-flush-bios-explicitely-sync.patch
queue-4.11/revert-f2fs-put-allocate_segment-after-refresh_sit_entry.patch
queue-4.11/f2fs-check-entire-encrypted-bigname-when-finding-a-dentry.patch
queue-4.11/f2fs-fix-multiple-f2fs_add_link-having-same-name-for-inline-dentry.patch
queue-4.11/f2fs-fix-fs-corruption-due-to-zero-inode-page.patch
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2017-05-18 7:45 Patch "Revert "f2fs: put allocate_segment after refresh_sit_entry"" has been added to the 4.11-stable tree gregkh
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