Re: Do we need a way to force xfsaild to run?

["Darrick J. Wong" <darrick.wong@oracle.com>]

On Thu, May 18, 2017 at 04:21:59PM +0200, Carlos Maiolino wrote:
> Hi,
> 
> This is something I was thinking while working on that buffer retry stuff.
> 
> Currently, we have no way to force xfsaild to run, and I was wondering if
> somebody has any opinion if it would be useful to create a new xfsctl, to start
> xfsaild for debugging purposes, using xfs_io to trigger it.
> 
> My specific use case is while testing the code I've been working on for the
> buffer retry stuff, where, I need to wait xfsaild to run to trigger the bug,
> adding a way to force it, in this case at least, would be useful for me, I could
> work on that, but only if somebody else can actually think this to be
> interesting, adding a new xfsctl just for 'me' does not sound worth the time :)
> 
> Anybody else might have interest on it or maybe this is just a waste of time?

"Run" the xfsaild as in 'push all the AIL items out to disk'?

I think xfs_freeze -f (followed immediately by xfs_freeze -u) will push
the AIL as part of the freezing process... though that might be more
work than you're looking for...?

--D

> 
> Cheers
> 
> -- 
> Carlos
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