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f2fs: fix to wait on page writeback before updating page

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[ 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>
This commit is contained in:
Chao Yu 2018-06-21 22:38:28 +08:00 committed by Greg Kroah-Hartman
parent 9e850bc769
commit 9d54a48ef2
1 changed files with 1 additions and 0 deletions
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fs/f2fs/inline.c
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@ -502,6 +502,7 @@ static int f2fs_move_rehashed_dirents(struct inode *dir, struct page *ipage,
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));