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Message-ID: <20070413112029.GD27914@wotan.suse.de> Date: Fri, 13 Apr 2007 13:20:30 +0200 From: Nick Piggin <npiggin@...e.de> To: Andi Kleen <ak@...e.de> Cc: Andrew Morton <akpm@...ux-foundation.org>, David Howells <dhowells@...hat.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux Memory Management List <linux-mm@...ck.org>, Linus Torvalds <torvalds@...ux-foundation.org> Subject: Re: [patch] generic rwsems On Fri, Apr 13, 2007 at 12:53:49PM +0200, Andi Kleen wrote: > On Friday 13 April 2007 12:04:16 Nick Piggin wrote: > > OK, this patch is against 2.6.21-rc6 + Mathieu's atomic_long patches. > > > > Last time this came up I was asked to get some numbers, so here are > > some in the changelog, captured with a simple kernel module tester. > > I got motivated again because of the MySQL/glibc/mmap_sem issue. > > > > This patch converts all architectures to a generic rwsem implementation, > > which will compile down to the same code for i386, or powerpc, for > > example, and will allow some (eg. x86-64) to move away from spinlock > > based rwsems. > > > > Comments? > > Fine for me from the x86-64 side. Some more validation with a test suite > would be good though. David had a test suite somewhere, so I'll give that a run. - 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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