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From: Yinghai Lu <yinghai@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
	"H. Peter Anvin" <hpa@zytor.com>, Jacob Shin <jacob.shin@amd.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	linux-kernel@vger.kernel.org, Yinghai Lu <yinghai@kernel.org>
Subject: [PATCH v9 06/46] x86, mm: Change find_early_table_space() paramters
Date: Wed, 28 Nov 2012 13:47:17 -0800	[thread overview]
Message-ID: <1354139277-17376-7-git-send-email-yinghai@kernel.org> (raw)
In-Reply-To: <1354139277-17376-1-git-send-email-yinghai@kernel.org>

call split_mem_range inside the function, that will make us call
split_mem_range two times. Following patch:

	x86, mm: Find early page table buffer together

tidies this up so we do not end up calling split_mem_range twice.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 arch/x86/mm/init.c |   12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index dbef4ff..51f919f 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -196,12 +196,18 @@ static int __meminit split_mem_range(struct map_range *mr, int nr_range,
  * mr[0].start to mr[nr_range - 1].end, while accounting for possible 2M and 1GB
  * pages. Then find enough contiguous space for those page tables.
  */
-static void __init find_early_table_space(struct map_range *mr, int nr_range)
+static void __init find_early_table_space(unsigned long start, unsigned long end)
 {
 	int i;
 	unsigned long puds = 0, pmds = 0, ptes = 0, tables;
-	unsigned long start = 0, good_end;
+	unsigned long good_end;
 	phys_addr_t base;
+	struct map_range mr[NR_RANGE_MR];
+	int nr_range;
+
+	memset(mr, 0, sizeof(mr));
+	nr_range = 0;
+	nr_range = split_mem_range(mr, nr_range, start, end);
 
 	for (i = 0; i < nr_range; i++) {
 		unsigned long range, extra;
@@ -276,7 +282,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
 	 * nodes are discovered.
 	 */
 	if (!after_bootmem)
-		find_early_table_space(mr, nr_range);
+		find_early_table_space(start, end);
 
 	for (i = 0; i < nr_range; i++)
 		ret = kernel_physical_mapping_init(mr[i].start, mr[i].end,
-- 
1.7.7


  parent reply	other threads:[~2012-11-28 22:00 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-28 21:47 [PATCH v9 00/46] x86, mm: map ram from top-down with BRK and memblock Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 01/46] x86, mm: Add global page_size_mask and probe one time only Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 02/46] x86, mm: Split out split_mem_range from init_memory_mapping Yinghai Lu
2012-11-29 10:40   ` Yasuaki Ishimatsu
2012-11-28 21:47 ` [PATCH v9 03/46] x86, mm: Move down find_early_table_space() Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 04/46] x86, mm: Move init_memory_mapping calling out of setup.c Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 05/46] x86, mm: Revert back good_end setting for 64bit Yinghai Lu
2012-12-21  8:22   ` Dave Young
2012-12-21 16:16     ` Yinghai Lu
2012-12-21 16:47     ` H. Peter Anvin
2012-11-28 21:47 ` Yinghai Lu [this message]
2012-11-28 21:47 ` [PATCH v9 07/46] x86, mm: Find early page table buffer together Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 08/46] x86, mm: Separate out calculate_table_space_size() Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 09/46] x86, mm: Set memblock initial limit to 1M Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 10/46] x86, mm: if kernel .text .data .bss are not marked as E820_RAM, complain and fix Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 11/46] x86, mm: Fixup code testing if a pfn is direct mapped Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 12/46] x86, mm: use pfn_range_is_mapped() with CPA Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 13/46] x86, mm: use pfn_range_is_mapped() with gart Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 14/46] x86, mm: use pfn_range_is_mapped() with reserve_initrd Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 15/46] x86, mm: Only direct map addresses that are marked as E820_RAM Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 16/46] x86, mm: relocate initrd under all mem for 64bit Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 17/46] x86, mm: Align start address to correct big page size Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 18/46] x86, mm: Use big page size for small memory range Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 19/46] x86, mm: Don't clear page table if range is ram Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 20/46] x86, mm: Break down init_all_memory_mapping Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 21/46] x86, mm: setup page table in top-down Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 22/46] x86, mm: Remove early_memremap workaround for page table accessing on 64bit Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 23/46] x86, mm: Remove parameter in alloc_low_page for 64bit Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 24/46] x86, mm: Merge alloc_low_page between 64bit and 32bit Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 25/46] x86, mm: Move min_pfn_mapped back to mm/init.c Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 26/46] x86, mm, Xen: Remove mapping_pagetable_reserve() Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 27/46] x86, mm: Add alloc_low_pages(num) Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 28/46] x86, mm: Add pointer about Xen mmu requirement for alloc_low_pages Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 29/46] x86, mm: only call early_ioremap_page_table_range_init() once Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 30/46] x86, mm: Move back pgt_buf_* to mm/init.c Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 31/46] x86, mm: Move init_gbpages() out of setup.c Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 32/46] x86, mm: change low/hignmem_pfn_init to static on 32bit Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 33/46] x86, mm: Move function declaration into mm_internal.h Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 34/46] x86, mm: Add check before clear pte above max_low_pfn on 32bit Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 35/46] x86, mm: use round_up/down in split_mem_range() Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 36/46] x86, mm: use PFN_DOWN " Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 37/46] x86, mm: use pfn instead of pos in split_mem_range Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 38/46] x86, mm: use limit_pfn for end pfn Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 39/46] x86, mm: Unifying after_bootmem for 32bit and 64bit Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 40/46] x86, mm: Move after_bootmem to mm_internel.h Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 41/46] x86, mm: Use clamp_t() in init_range_memory_mapping Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 42/46] x86, mm: kill numa_free_all_bootmem() Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 43/46] x86, mm: kill numa_64.h Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 44/46] sparc, mm: Remove calling of free_all_bootmem_node() Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 45/46] mm: Kill NO_BOOTMEM version free_all_bootmem_node() Yinghai Lu
2012-11-28 21:47 ` [PATCH v9 46/46] x86, mm: Let "memmap=" take more entries one time Yinghai Lu
2012-11-28 21:54 ` [PATCH v9 00/46] x86, mm: map ram from top-down with BRK and memblock H. Peter Anvin
2012-11-28 23:49   ` Yinghai Lu

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