From: Mike Rapoport <rppt@kernel•org>
To: Andrew Morton <akpm@linux-foundation•org>
Cc: linux-ia64@vger•kernel.org, linux-doc@vger•kernel.org,
Catalin Marinas <catalin.marinas@arm•com>,
linux-mm@kvack•org, Will Deacon <will@kernel•org>,
Greg Ungerer <gerg@linux-m68k•org>,
Jonathan Corbet <corbet@lwn•net>, Meelis Roos <mroos@linux•ee>,
Russell King <linux@armlinux•org.uk>,
Mike Rapoport <rppt@linux•ibm.com>,
Geert Uytterhoeven <geert@linux-m68k•org>,
Matt Turner <mattst88@gmail•com>,
linux-snps-arc@lists•infradead.org,
Alexey Dobriyan <adobriyan@gmail•com>,
linux-m68k@lists•linux-m68k.org,
John Paul Adrian Glaubitz <glaubitz@physik•fu-berlin.de>,
linux-arm-kernel@lists•infradead.org,
Michael Schmitz <schmitzmic@gmail•com>,
Tony Luck <tony.luck@intel•com>,
Vineet Gupta <vgupta@synopsys•com>,
linux-kernel@vger•kernel.org, linux-alpha@vger•kernel.org,
linux-fsdevel@vger•kernel.org, Mike Rapoport <rppt@kernel•org>
Subject: [PATCH 04/13] ia64: discontig: paging_init(): remove local max_pfn calculation
Date: Tue, 27 Oct 2020 13:29:46 +0200 [thread overview]
Message-ID: <20201027112955.14157-5-rppt@kernel.org> (raw)
In-Reply-To: <20201027112955.14157-1-rppt@kernel.org>
From: Mike Rapoport <rppt@linux•ibm.com>
The maximal PFN in the system is calculated during find_memory() time and
it is stored at max_low_pfn then.
Use this value in paging_init() and remove the redundant detection of
max_pfn in that function.
Signed-off-by: Mike Rapoport <rppt@linux•ibm.com>
---
arch/ia64/mm/discontig.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index d255596f52c6..f41dcf75887b 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -594,7 +594,6 @@ void __init paging_init(void)
{
unsigned long max_dma;
unsigned long pfn_offset = 0;
- unsigned long max_pfn = 0;
int node;
unsigned long max_zone_pfns[MAX_NR_ZONES];
@@ -616,13 +615,11 @@ void __init paging_init(void)
#ifdef CONFIG_VIRTUAL_MEM_MAP
NODE_DATA(node)->node_mem_map = vmem_map + pfn_offset;
#endif
- if (mem_data[node].max_pfn > max_pfn)
- max_pfn = mem_data[node].max_pfn;
}
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
max_zone_pfns[ZONE_DMA32] = max_dma;
- max_zone_pfns[ZONE_NORMAL] = max_pfn;
+ max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
free_area_init(max_zone_pfns);
zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
--
2.28.0
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next prev parent reply other threads:[~2020-10-27 11:34 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-27 11:29 [PATCH 00/13] arch, mm: deprecate DISCONTIGMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 01/13] alpha: switch from DISCONTIGMEM to SPARSEMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 02/13] ia64: remove custom __early_pfn_to_nid() Mike Rapoport
2020-10-27 11:29 ` [PATCH 03/13] ia64: remove 'ifdef CONFIG_ZONE_DMA32' statements Mike Rapoport
2020-10-27 11:29 ` Mike Rapoport [this message]
2020-10-27 11:29 ` [PATCH 05/13] ia64: split virtual map initialization out of paging_init() Mike Rapoport
2020-10-27 11:29 ` [PATCH 06/13] ia64: forbid using VIRTUAL_MEM_MAP with FLATMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 07/13] ia64: make SPARSEMEM default and disable DISCONTIGMEM Mike Rapoport
2020-12-12 16:01 ` Guenter Roeck
2020-12-13 8:36 ` Mike Rapoport
2020-10-27 11:29 ` [PATCH 08/13] arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL Mike Rapoport
2020-10-27 11:29 ` [PATCH 09/13] arm, arm64: move free_unused_memmap() to generic mm Mike Rapoport
2020-10-27 11:29 ` [PATCH 10/13] arc: use FLATMEM with freeing of unused memory map instead of DISCONTIGMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 11/13] m68k/mm: make node data and node setup depend on CONFIG_DISCONTIGMEM Mike Rapoport
2020-10-28 9:25 ` Geert Uytterhoeven
2020-10-28 11:16 ` Mike Rapoport
2020-10-28 18:14 ` Michael Schmitz
2020-10-28 18:57 ` Mike Rapoport
2020-11-01 16:55 ` Mike Rapoport
2020-10-27 11:29 ` [PATCH 12/13] m68k/mm: enable use of generic memory_model.h for !DISCONTIGMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 13/13] m68k: deprecate DISCONTIGMEM Mike Rapoport
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