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Date: Tue, 8 May 2007 09:06:32 -0600 From: Matthew Wilcox <matthew@....cx> To: Nick Piggin <npiggin@...e.de> Cc: linux-arch@...r.kernel.org, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Andrew Morton <akpm@...ux-foundation.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: [rfc] lock bitops On Tue, May 08, 2007 at 01:37:09PM +0200, Nick Piggin wrote: > -- > Introduce test_and_set_bit_lock / clear_bit_unlock bitops with lock semantics. > Add non-trivial for powerpc and ia64. Convert page lock, buffer lock, > bit_spin_lock, tasklet locks to use the new locks. The names are a bit clumsy. How about naming them after the effect, rather than the implementation? It struck me that really these things are bit mutexes -- you can sleep while holding the lock. How about calling them bit_mutex_trylock() and bit_mutex_unlock()? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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