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From: Chao Yu <yuchao0@huawei.com>
To: <jaegeuk@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net
Subject: [f2fs-dev] [PATCH 1/4] f2fs: fix extent corrupotion during directIO in LFS mode
Date: Wed, 28 Aug 2019 17:33:35 +0800	[thread overview]
Message-ID: <20190828093338.29446-1-yuchao0@huawei.com> (raw)

In LFS mode, por_fsstress testcase reports a bug as below:

[ASSERT] (fsck_chk_inode_blk: 931)  --> ino: 0x12fe has wrong ext: [pgofs:142, blk:215424, len:16]

Since commit f847c699cff3 ("f2fs: allow out-place-update for direct
IO in LFS mode"), we start to allow OPU mode for direct IO, however,
we missed to update extent cache in __allocate_data_block(), finally,
it cause extent field being inconsistent with physical block address,
fix it.

Fixes: f847c699cff3 ("f2fs: allow out-place-update for direct IO in LFS mode")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
---
 fs/f2fs/data.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index bf648c8c50ad..727df32382c6 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1018,7 +1018,7 @@ static int __allocate_data_block(struct dnode_of_data *dn, int seg_type)
 	if (GET_SEGNO(sbi, old_blkaddr) != NULL_SEGNO)
 		invalidate_mapping_pages(META_MAPPING(sbi),
 					old_blkaddr, old_blkaddr);
-	f2fs_set_data_blkaddr(dn);
+	f2fs_update_data_blkaddr(dn, dn->data_blkaddr);
 
 	/*
 	 * i_size will be updated by direct_IO. Otherwise, we'll get stale
-- 
2.18.0.rc1



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             reply	other threads:[~2019-08-28  9:33 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-28  9:33 Chao Yu [this message]
2019-08-28  9:33 ` [f2fs-dev] [PATCH 2/4] f2fs: fix to handle error path correctly in f2fs_map_blocks Chao Yu
2019-08-28  9:33 ` [f2fs-dev] [PATCH 3/4] f2fs: fix to fallback to buffered IO in IO aligned mode Chao Yu
2019-08-28  9:33 ` [f2fs-dev] [PATCH 4/4] f2fs: fix to add missing F2FS_IO_ALIGNED() condition Chao Yu

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