On Thu, Dec 06, 2012 at 08:05:37PM +0100, Jan Kara wrote: > I like this, but this patch already breaks ext4, doesn't it? > ^^^ Here ext4 offloads IO completion to a worker thread. So you now > complete AIO / DIO before ext4_end_io() runs which is a bug (ext4_end_io() > is responsible for example for calling end_page_writeback()). I'll modify > these patches to work for ext4 tomorrow I hope... You're right, patch 2 actively deadlocks ext4 under xfstests, but the first one already breaks semantics. So any rework of the ext4 unwritten extent handling really should go before these two patches. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
