From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 28 Nov 2007 13:28:16 -0800 From: Randy Dunlap Subject: Re: [PATCH 1/2] powerpc: add hugepagesz boot-time parameter Message-Id: <20071128132816.542fa4df.randy.dunlap@oracle.com> In-Reply-To: <474CF68E.1040709@us.ibm.com> References: <474CF68E.1040709@us.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: kniht@linux.vnet.ibm.com Cc: Jon Tollefson , linuxppc-dev , Linux Memory Management List List-ID: On Tue, 27 Nov 2007 23:03:10 -0600 Jon Tollefson wrote: > This patch adds the hugepagesz boot-time parameter for ppc64 that lets > you pick the size for your huge pages. The choices available are 64K > and 16M. It defaults to 16M (previously the only choice) if nothing or > an invalid choice is specified. Tested 64K huge pages with the > libhugetlbfs 1.2 release with its 'make func' and 'make stress' test > invocations. > > This patch requires the patch posted by Mel Gorman that adds > HUGETLB_PAGE_SIZE_VARIABLE; "[PATCH] Fix boot problem with iSeries > lacking hugepage support" on 2007-11-15. > > Signed-off-by: Jon Tollefson > --- > > Documentation/kernel-parameters.txt | 1 > arch/powerpc/mm/hash_utils_64.c | 11 +-------- > arch/powerpc/mm/hugetlbpage.c | 41 ++++++++++++++++++++++++++++++++++++ > include/asm-powerpc/mmu-hash64.h | 1 > mm/hugetlb.c | 1 > 5 files changed, 46 insertions(+), 9 deletions(-) > > diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt > index 33121d6..2fc1fb8 100644 > --- a/Documentation/kernel-parameters.txt > +++ b/Documentation/kernel-parameters.txt > @@ -685,6 +685,7 @@ and is between 256 and 4096 characters. It is defined in the file > See Documentation/isdn/README.HiSax. > > hugepages= [HW,X86-32,IA-64] Maximal number of HugeTLB pages. > + hugepagesz= [HW,IA-64,PPC] The size of the HugeTLB pages. Any chance of spelling it as "hugepagesize" so that it's a little less cryptic and more difficult to typo as "hugepages"? (i.e., less confusion between them) > > i8042.direct [HW] Put keyboard port into non-translated mode > i8042.dumbkbd [HW] Pretend that controller can only read data from Thanks. --- ~Randy -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org