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23 October 2021, 00:29:24 UTC
Revision 2dfd06036ba7ae8e7be2daf5a2fff1dac42390bf authored by Junxiao Bi on 27 June 2012, 09:09:54 UTC, committed by Joel Becker on 05 July 2012, 08:33:59 UTC 
aio: make kiocb->private NUll in init_sync_kiocb()
 
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@oracle.com>
Cc: stable@vger.kernel.org
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
1 parent a4564ea
History
Tip revision: 2dfd06036ba7ae8e7be2daf5a2fff1dac42390bf authored by Junxiao Bi on 27 June 2012, 09:09:54 UTC
aio: make kiocb->private NUll in init_sync_kiocb()
Tip revision: 2dfd060
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