Martin Steigerwald posted on Sun, 15 Jun 2014 23:31:07 +0200 as excerpted: > I always thought that the whole point of fallocate is that it *doesn´t* > write out anything, but just reserves the space. Thus I don´t see how > COW can have any adverse effect here.
Tying up loose ends... I was wrong on fallocate being the trigger, tho I did call correctly on fragmentation as the result, with NOCOW and defrag as possible workarounds. -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html