On Fri, Feb 01, 2013 at 10:33:04AM +0100, Sedat Dilek wrote: > Hi Ted, > > will those JBD2 fixes in ext4.git#dev [1] get also into mainline kernel(s)? > > [ Cut-n-paste out of tig ] > > 2013-01-31 13:00 Theodore Ts'o │ o jbd2: track request delay statistics > 2013-01-30 00:41 Theodore Ts'o │ o jbd2: commit as soon as > possible after log_start_commit <--- T-b-me (Linux-Next + 3.8-rc5+) > 2013-01-30 00:39 Eric Sandeen │ o jbd2: don't wake kjournald > unnecessarily <--- T-b-me (Linux-Next + 3.8-rc5+) > > I see no "CC: linux-stable"... and none of my Tested-by#s :-). I might be willing to add a cc linux-stable to Eric's commit, since it's pretty simple and it does fix a very long-standing performance regression. But technically these commits are intended to be ***performance*** improvements. The fact that your inherently dangerous use of using loop devices over FUSE happens to not deadlock when doing a suspend/resume after applying this patch is nice, but it is absolutely an unintended side effect. It doesn't change the fact that it's inherently dangerous, and it may break at any one time, and I would be surprised if kernel developers would be willing to stand behind this as as a supported configurations. If this is something Ubuntu is doing, and you have a support contract with Ubuntu, I suggest you ask them to look into this. - 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
