Re: [V2 PATCH 1/2] aio: make kiocb->private NUll in init_sync_kiocb()

[Jeff Moyer]

Junxiao Bi <junxiao.bi@xxxxxxxxxx> writes:

> Ocfs2 uses kiocb.*private as a flag of unsigned long size. In
> commit a11f7e6 ocfs2: serialize unaligned aio, the unaligned
> io flag is involved in it to serialize the unaligned aio. As
> *private is not initialized in init_sync_kiocb() of do_sync_write(),
> this unaligned io flag may be unexpectly set in an aligned dio.
> And this will cause OCFS2_I(inode)->ip_unaligned_aio decreased
> to -1 in ocfs2_dio_end_io(), thus the following unaligned dio
> will hang forever at ocfs2_aiodio_wait() in ocfs2_file_aio_write().
>
> Signed-off-by: Junxiao Bi <junxiao.bi@xxxxxxxxxx>

Acked-by: Jeff Moyer <jmoyer@xxxxxxxxxx>
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