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Date: Tue, 21 Jul 2009 20:54:19 -0700 (PDT) From: David Miller <davem@...emloft.net> To: tj@...nel.org Cc: linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org, mingo@...hat.com, benh@...nel.crashing.org, dhowells@...hat.com, npiggin@...e.de, JBeulich@...ell.com, cl@...ux-foundation.org, rusty@...tcorp.com.au, hpa@...or.com, tglx@...utronix.de, akpm@...ux-foundation.org, x86@...nel.org, andi@...stfloor.org Subject: Re: [PATCH 19/20] sparc64: use embedding percpu first chunk allocator From: Tejun Heo <tj@...nel.org> Date: Tue, 21 Jul 2009 19:26:18 +0900 > sparc64 currently allocates a large page for each cpu and partially > remap them into vmalloc area much like what lpage first chunk > allocator did. As a 4M page is used for each cpu, this results in > very large unit size and also adds TLB pressure due to the double > mapping of pages in the first chunk. > > This patch converts sparc64 to use the embedding percpu first chunk > allocator which now knows how to handle NUMA configurations. This > simplifies the code a lot, doesn't incur any extra TLB pressure and > results in better utilization of address space. > > Signed-off-by: Tejun Heo <tj@...nel.org> Acked-by: David S. Miller <davem@...emloft.net> -- 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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