From: Mel Gorman <mel@csn.ul.ie>
To: akpm@linux-foundation.org
Cc: Mel Gorman <mel@csn.ul.ie>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH 1/13] ia64: parse kernel parameter hugepagesz= in early boot
Subject: ia64: parse kernel parameter hugepagesz= in early boot
Date: Mon, 10 Sep 2007 12:20:31 +0100 (IST) [thread overview]
Message-ID: <20070910112031.3097.69533.sendpatchset@skynet.skynet.ie> (raw)
In-Reply-To: <20070910112011.3097.8438.sendpatchset@skynet.skynet.ie>
Parse hugepagesz with early_param() instead of __setup(). __setup()
is called after the memory allocator has been initialised and the
pageblock bitmaps already setup. In tests on one IA64 there did not
seem to be any problem with using early_param() and in fact may be
more correct as it guarantees the parameter is handled before the
parsing of hugepages=.
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Andy Whitcroft <apw@shadowen.org>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
arch/ia64/Kconfig | 5 +++++
arch/ia64/mm/hugetlbpage.c | 4 ++--
2 files changed, 7 insertions(+), 2 deletions(-)
diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.23-rc5-clean/arch/ia64/Kconfig linux-2.6.23-rc5-001-ia64-parse-kernel-parameter-hugepagesz=-in-early-boot/arch/ia64/Kconfig
--- linux-2.6.23-rc5-clean/arch/ia64/Kconfig 2007-09-01 07:08:24.000000000 +0100
+++ linux-2.6.23-rc5-001-ia64-parse-kernel-parameter-hugepagesz=-in-early-boot/arch/ia64/Kconfig 2007-09-02 16:18:48.000000000 +0100
@@ -54,6 +54,11 @@ config ARCH_HAS_ILOG2_U64
bool
default n
+config HUGETLB_PAGE_SIZE_VARIABLE
+ bool
+ depends on HUGETLB_PAGE
+ default y
+
config GENERIC_FIND_NEXT_BIT
bool
default y
diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.23-rc5-clean/arch/ia64/mm/hugetlbpage.c linux-2.6.23-rc5-001-ia64-parse-kernel-parameter-hugepagesz=-in-early-boot/arch/ia64/mm/hugetlbpage.c
--- linux-2.6.23-rc5-clean/arch/ia64/mm/hugetlbpage.c 2007-09-01 07:08:24.000000000 +0100
+++ linux-2.6.23-rc5-001-ia64-parse-kernel-parameter-hugepagesz=-in-early-boot/arch/ia64/mm/hugetlbpage.c 2007-09-02 16:18:48.000000000 +0100
@@ -194,6 +194,6 @@ static int __init hugetlb_setup_sz(char
* override here with new page shift.
*/
ia64_set_rr(HPAGE_REGION_BASE, hpage_shift << 2);
- return 1;
+ return 0;
}
-__setup("hugepagesz=", hugetlb_setup_sz);
+early_param("hugepagesz", hugetlb_setup_sz);
--
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next prev parent reply other threads:[~2007-09-10 11:20 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-10 11:20 [PATCH 0/13] Reduce external fragmentation by grouping pages by mobility v30 Mel Gorman
2007-09-10 11:20 ` Mel Gorman [this message]
2007-09-10 11:20 ` [PATCH 2/13] Add a bitmap that is used to track flags affecting a block of pages, Add a bitmap that is used to track flags affecting a block of pages Mel Gorman
2007-09-10 11:21 ` [PATCH 3/13] Fix corruption of memmap on ia64-sparsemem when mem_section is not a power of 2, Fix corruption of memmap on ia64-sparsemem when mem_section is not a power of 2 Mel Gorman
2007-09-10 11:21 ` [PATCH 4/13] Split the free lists for movable and unmovable allocations, Split the free lists for movable and unmovable allocations Mel Gorman
2007-09-10 11:21 ` [PATCH 5/13] Choose pages from the per cpu list-based on migration type, Choose pages from the per cpu list-based on migration type Mel Gorman
2009-07-13 19:16 ` [PATCH 5/13] " Andrew Morton
2009-07-14 9:14 ` Mel Gorman
2007-09-10 11:22 ` [PATCH 6/13] Group short-lived and reclaimable kernel allocations, Group short-lived and reclaimable kernel allocations Mel Gorman
2007-09-10 19:44 ` Paul Jackson
2007-09-10 21:15 ` Mel Gorman
2007-09-10 11:22 ` [PATCH 7/13] Drain per-cpu lists when high-order allocations fail, Drain per-cpu lists when high-order allocations fail Mel Gorman
2007-09-10 15:05 ` [PATCH 7/13] " Nick Piggin
2007-09-11 9:34 ` Mel Gorman
2007-09-10 11:22 ` [PATCH 8/13] Move free pages between lists on steal, Move free pages between lists on steal Mel Gorman
2007-09-10 11:23 ` [PATCH 9/13] Do not group pages by mobility type on low memory systems, Do not group pages by mobility type on low memory systems Mel Gorman
2007-09-10 11:23 ` [PATCH 10/13] Bias the location of pages freed for min_free_kbytes in the same pageblock_nr_pages areas, Bias the location of pages freed for min_free_kbytes in the same pageblock_nr_pages areas Mel Gorman
2007-09-10 11:23 ` [PATCH 11/13] Bias the placement of kernel pages at lower pfns, Bias the placement of kernel pages at lower pfns Mel Gorman
2007-09-10 11:24 ` [PATCH 12/13] Be more agressive about stealing when MIGRATE_RECLAIMABLE allocations fallback, Be more agressive about stealing when MIGRATE_RECLAIMABLE allocations fallback Mel Gorman
2007-09-10 11:24 ` [PATCH 13/13] Print out statistics in relation to fragmentation avoidance to /proc/pagetypeinfo, Print out statistics in relation to fragmentation avoidance to /proc/pagetypeinfo Mel Gorman
2007-09-14 1:01 ` [PATCH 0/13] Reduce external fragmentation by grouping pages by mobility v30 Andrew Morton
2007-09-14 14:33 ` Mel Gorman
2007-09-16 10:34 ` Andrew Morton
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