Messages in this thread | | | Date | Wed, 23 Mar 2011 16:52:06 +0100 | From | Tejun Heo <> | Subject | Re: [RFC PATCH] mutex: Apply adaptive spinning on mutex_trylock() |
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On Wed, Mar 23, 2011 at 08:48:01AM -0700, Linus Torvalds wrote: > On Wed, Mar 23, 2011 at 8:37 AM, Tejun Heo <tj@kernel.org> wrote: > > > > Currently, mutex_trylock() doesn't use adaptive spinning. It tries > > just once. I got curious whether using adaptive spinning on > > mutex_trylock() would be beneficial and it seems so, at least for > > btrfs anyway. > > Hmm. Seems reasonable to me. The patch looks clean, although part of > that is just the mutex_spin() cleanup that is independent of actually > using it in trylock.
Oh, I have two split patches. Posted the combined one for comments.
> So no objections from me.
Awesome. Peter, what do you think? Are there some other tests which can be useful?
Thanks.
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