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    Subject[PATCH 4.18 139/158] f2fs: fix to wait on page writeback before updating page
    Date
    4.18-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
    @@ -498,6 +498,7 @@ 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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