On Fri, Feb 19, 2016 at 04:59:38PM +0100, Jan Kara wrote: > Currently we've used hashed aio_mutex to serialize unaligned AIO DIO. > However the code cleanups that happened after 2011 when the lock was > introduced made aio_mutex acquired at almost the same places where we > already have exclusion using i_mutex. So just use i_mutex for the > exclusion of unaligned AIO DIO. > > The change moves waiting for pending unwritten extent conversion under > i_mutex. That makes special handling of O_APPEND writes unnecessary and > also avoids possible livelocking of unaligned AIO DIO with aligned one > (nothing was preventing contiguous stream of aligned AIO DIOs to let > unaligned AIO DIO wait forever). > > Signed-off-by: Jan Kara <jack@xxxxxxx> Thanks, applied. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
