On 12/17/13, 4:30 PM, Dave Chinner wrote: > On Tue, Dec 17, 2013 at 02:18:25PM -0500, Matthew Wilcox wrote: >> For v3, we've addressed the problem with unwritten extents that Dave >> Chinner pointed out. > > No, you haven't addressed the problem. There is nothing in this > patch set that converts an unwritten extent after it is written to. > Hence on every subsequent read will return zeros because the block > is still marked as unwritten. I'd really strongly encourage you guys to try running through xfstests. IF you haven't seen this stuff fail yet, you're apparently not testing these paths - I'm guessing xfstests may expose these holes quite well. I'd be happy to help you get up & running on xfstests if you need a hand. -Eric -- 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
