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From: Mike Rapoport <rppt@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Greg Ungerer <gerg@linux-m68k.org>,
	John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
	Jonathan Corbet <corbet@lwn.net>,
	Matt Turner <mattst88@gmail.com>, Meelis Roos <mroos@linux.ee>,
	Michael Schmitz <schmitzmic@gmail.com>,
	Mike Rapoport <rppt@kernel.org>,
	Mike Rapoport <rppt@linux.ibm.com>,
	Russell King <linux@armlinux.org.uk>,
	Tony Luck <tony.luck@intel.com>,
	Vineet Gupta <vgupta@synopsys.com>, Will Deacon <will@kernel.org>,
	linux-alpha@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, linux-ia64@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	linux-mm@kvack.org, linux-snps-arc@lists.infradead.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


  parent reply	other threads:[~2020-10-27 11:30 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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