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Subject[PATCH] f2fs: put allocate_segment after refresh_sit_entry
Date
SIT information should be updated before segment allocation, since SSR needs
latest valid block information. Current code does not update the old_blkaddr
info in sit_entry, so adjust the allocate_segment to its proper location. Commit
5e443818fa0b2a2845561ee25bec181424fb2889 ("f2fs: handle dirty segments inside
refresh_sit_entry") puts it into wrong location.

Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
---
fs/f2fs/segment.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index df2ff5c..89052df 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1743,14 +1743,15 @@ void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,

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.
*/
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))
--
1.8.5.2
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