Messages in this thread | | | Subject | Re: [PATCH 0/10] Per-bdi writeback flusher threads v12 | From | "Zhang, Yanmin" <> | Date | Mon, 29 Jun 2009 16:43:37 +0800 |
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On Thu, 2009-06-25 at 12:41 +0200, Jens Axboe wrote: > Hi, > > Here's the 12th version of the writeback patches. Changes since v11: > > - Fixup kthread_run() error check, it should use IS_ERR() instead of > checking for NULL. Thanks Andrew. > - Fix a silly buglet that would quickly respawn otherwise idle threads > once they had exited. This was due to an inverted if test. Didn't cause > any harm except potentially too many writeback threads setting idle in > the system. > - Integrate kupdate periodic writeback with the explicit writeback. Cleans > that part up. > - Update to 2.6.31-rc1. With the recent patches from viro and hch, v11 > did not apply cleanly at all to 2.6.31-rc1. > > For ease of patching, I've put the full diff here: > > http://kernel.dk/writeback-v12.patch > > and also stored this in a writeback-v12 branch that will not change, > you can pull that into Linus tree from here: > > git://git.kernel.dk/linux-2.6-block.git writeback-v12 >
> Please test and report results/interesting finds. I tested it against 2.6.31-rc1 on a couple of machines. 1) System didn't hang; 2) Comapring with previous bdi flusher versions, I didn't find clear performance different.
> Thanks! The target > for this patchset is 2.6.32 and it'll be sitting (and has been for the past
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