[PATCH AUTOSEL 4.14 71/89] f2fs: fix to wait on page writeback before updating page

[Sasha Levin]

From: Chao Yu <yuch...@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 <yuch...@huawei.com>
Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
---
 fs/f2fs/inline.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 295d5505b939..888a9dc13677 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -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));
-- 
2.17.1