Re: [POC][PATCH] xfs: reduce ilock contention on buffered randrw workload

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On Fri, May 03, 2019 at 02:17:27PM +1000, Dave Chinner wrote:
> Concept proven.
> 
> Next steps are:
....
> 	- work out whether RCU read locking and kfree_rcu() will
> 	  work with the requirement to do memory allocation while
> 	  holding rcu_read_lock(). Alternative is an internal
> 	  garbage collector mechanism, kinda like I've hacked up to
> 	  simulate kfree_rcu() in userspace.

Internal RCU interactions are now solved. Actually very simple in
the end, should be very easy to integrate into the code.

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx



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