On 09/18/12 18:50, Dave Chinner wrote:
On Tue, Sep 18, 2012 at 08:59:04AM -0500, Mark Tinguely wrote:
This looks great. Like I said earlier, I did not find Brian Foster's
log patch:
xfs: check for stale inode before acquiring iflock on push
Upstream commit: 9a3a5dab63461b84213052888bf38a962b22d035
sample implementation listed on:
http://oss.sgi.com/archives/xfs/2012-09/msg00188.html
Reviewed-by: Mark Tinguely<tinguely@xxxxxxx>
Thatnks for looking over this, Mark.
The above patch does not directly apply to the 3.0.x branch because
the rework of the log item lock/push logic in the AIL was not
included in the series. Hence I'm not sure that backportingthis
patch is necessary because the problem only arose after we change
the locking/push logic...
Cheers,
Dave.
Hi Dave.
The original problem was in Linux 2.6.X.
The patch in the above link is a 3.0.42 port of Brian's top of tree
patch. This version places the tests in AIL trylock routine. We have
been using it on Linux 3.0.x for a couple months and it has avoided
the hangs that we used to get before.
Thank-you again for the work.
--Mark T.
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