[PATCH 04/13] ia64: discontig: paging_init(): remove local max_pfn calculation
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
- To: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
- Subject: [PATCH 04/13] ia64: discontig: paging_init(): remove local max_pfn calculation
- From: Mike Rapoport <rppt@xxxxxxxxxx>
- Date: Tue, 27 Oct 2020 13:29:46 +0200
- Cc: Alexey Dobriyan <adobriyan@xxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>, Greg Ungerer <gerg@xxxxxxxxxxxxxx>, John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Matt Turner <mattst88@xxxxxxxxx>, Meelis Roos <mroos@xxxxxxxx>, Michael Schmitz <schmitzmic@xxxxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxx>, Tony Luck <tony.luck@xxxxxxxxx>, Vineet Gupta <vgupta@xxxxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, linux-alpha@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-m68k@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-snps-arc@xxxxxxxxxxxxxxxxxxx
- In-reply-to: <20201027112955.14157-1-rppt@kernel.org>
- References: <20201027112955.14157-1-rppt@kernel.org>
From: Mike Rapoport <rppt@xxxxxxxxxxxxx>
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@xxxxxxxxxxxxx>
---
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
[Index of Archives]
[Linux Kernel]
[Sparc Linux]
[DCCP]
[Linux ARM]
[Yosemite News]
[Linux SCSI]
[Linux x86_64]
[Linux for Ham Radio]