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Subject[PATCH 4.14 083/126] f2fs: fix to wait on page writeback before updating page
Date
4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Chao Yu <yuchao0@huawei.com>

[ Upstream commit 6aead1617b3adf2b7e2c56f0f13e4e0ee42ebb4a ]

In error path of f2fs_move_rehashed_dirents, inode page could be writeback
state, so we should wait on inode page writeback before updating it.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/f2fs/inline.c | 1 +
1 file changed, 1 insertion(+)

--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -502,6 +502,7 @@ static int f2fs_move_rehashed_dirents(st
return 0;
recover:
lock_page(ipage);
+ f2fs_wait_on_page_writeback(ipage, NODE, true);
memcpy(inline_dentry, backup_dentry, MAX_INLINE_DATA(dir));
f2fs_i_depth_write(dir, 0);
f2fs_i_size_write(dir, MAX_INLINE_DATA(dir));

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