Messages in this thread | | | Date | Tue, 7 Jan 2014 07:47:43 -0800 | From | Christoph Hellwig <> | Subject | Re: [PATCH 0/3 v2] Use lockless lists for smp_call_function_single() |
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On Thu, Dec 19, 2013 at 08:31:54AM -0700, Jens Axboe wrote: > On Wed, Dec 18 2013, Jan Kara wrote: > > Hello, > > > > these three patches make smp_call_function_single() use lockless lists and > > cleanup abuse of csd.list in the block layer. I have some use for lockless > > smp_call_function_single() in printk code and that's why I've picked up > > Christoph's patch. Jens, can you have a look at the series please? > > > > Changes since v1: > > * Reordered patches to a more sensible order. > > Thanks Jan, I'll throw this into the testing mix for 3.14. Will be a > little delayed over christmas, with holidays and family visiting.
Did you make any progress? Btw, I'd love if you could queue up the patch to use __smp_call_function_single directly in the block layer for 3.14. Independent of wether a llist using __smp_call_function_single is faster than one using the lock we get down from a list plus llist to just one of them, so I can't see how that patch will cause an issue. With all the prep patches already in it can be queue up independently of Jan's series as well.
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