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From: Mike Rapoport <rppt@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	Juergen Gross <jgross@suse.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Mike Rapoport <rppt@kernel.org>,
	Mike Rapoport <rppt@linux.ibm.com>,
	Shahab Vahedi <Shahab.Vahedi@synopsys.com>,
	devicetree@vger.kernel.org, iommu@lists.linux-foundation.org,
	kasan-dev@googlegroups.com, kvm@vger.kernel.org,
	linux-alpha@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-efi@vger.kernel.org,
	linux-mips@vger.kernel.org, linux-mm@kvack.org,
	linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org,
	linux-sh@vger.kernel.org, linux-snps-arc@lists.infradead.org,
	linux-um@lists.infradead.org, linux-usb@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org,
	xen-devel@lists.xenproject.org
Subject: [PATCH v2 1/6] arch_numa: simplify numa_distance allocation
Date: Thu, 30 Sep 2021 21:50:26 +0300	[thread overview]
Message-ID: <20210930185031.18648-2-rppt@kernel.org> (raw)
In-Reply-To: <20210930185031.18648-1-rppt@kernel.org>

From: Mike Rapoport <rppt@linux.ibm.com>

Memory allocation of numa_distance uses memblock_phys_alloc_range() without
actual range limits, converts the returned physical address to virtual and
then only uses the virtual address for further initialization.

Simplify this by replacing memblock_phys_alloc_range() with
memblock_alloc().

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
 drivers/base/arch_numa.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/base/arch_numa.c b/drivers/base/arch_numa.c
index 00fb4120a5b3..f6d0efd01188 100644
--- a/drivers/base/arch_numa.c
+++ b/drivers/base/arch_numa.c
@@ -275,15 +275,13 @@ void __init numa_free_distance(void)
 static int __init numa_alloc_distance(void)
 {
 	size_t size;
-	u64 phys;
 	int i, j;
 
 	size = nr_node_ids * nr_node_ids * sizeof(numa_distance[0]);
-	phys = memblock_phys_alloc_range(size, PAGE_SIZE, 0, PFN_PHYS(max_pfn));
-	if (WARN_ON(!phys))
+	numa_distance = memblock_alloc(size, PAGE_SIZE);
+	if (WARN_ON(!numa_distance))
 		return -ENOMEM;
 
-	numa_distance = __va(phys);
 	numa_distance_cnt = nr_node_ids;
 
 	/* fill with the default distances */
-- 
2.28.0


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  reply	other threads:[~2021-09-30 18:55 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-30 18:50 [PATCH v2 0/6] memblock: cleanup memblock_free interface Mike Rapoport
2021-09-30 18:50 ` Mike Rapoport [this message]
2021-09-30 18:50 ` [PATCH v2 2/6] xen/x86: free_p2m_page: use memblock_free_ptr() to free a virtual pointer Mike Rapoport
2021-09-30 18:50 ` [PATCH v2 3/6] memblock: drop memblock_free_early_nid() and memblock_free_early() Mike Rapoport
2021-09-30 18:50 ` [PATCH v2 4/6] memblock: stop aliasing __memblock_free_late with memblock_free_late Mike Rapoport
2021-09-30 18:50 ` [PATCH v2 5/6] memblock: rename memblock_free to memblock_phys_free Mike Rapoport
2021-09-30 18:50 ` [PATCH v2 6/6] memblock: use memblock_free for freeing virtual pointers Mike Rapoport
2021-09-30 21:20 ` [PATCH v2 0/6] memblock: cleanup memblock_free interface Linus Torvalds
2021-09-30 22:10   ` Mike Rapoport

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