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mm: numa_clear_kernel_node_hotplug: Add NUMA_NO_NODE check for node id

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The acquired memory blocks for reserved may include blocks outside of
memory management.  In this case, the nid variable is set to NUMA_NO_NODE
(-1), so an error occurs in node_set().  This adds a check using
numa_valid_node() to numa_clear_kernel_node_hotplug() that skips
node_set() when nid is set to NUMA_NO_NODE.

Link: https://lkml.kernel.org/r/1729070461-13576-1-git-send-email-nobuhiro1.iwamatsu@toshiba.co.jp
Fixes: 8748270821 ("mm: introduce numa_memblks")
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Suggested-by: Yuji Ishikawa <yuji2.ishikawa@toshiba.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Nobuhiro Iwamatsu 2024-10-16 18:21:01 +09:00 committed by Andrew Morton
parent bc0a2f3a73
commit d95fb348f0
1 changed files with 1 additions and 1 deletions
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2
mm/numa_memblks.c
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@ -349,7 +349,7 @@ static void __init numa_clear_kernel_node_hotplug(void)
for_each_reserved_mem_region(mb_region) { for_each_reserved_mem_region(mb_region) {
int nid = memblock_get_region_node(mb_region); int nid = memblock_get_region_node(mb_region);
if (nid != MAX_NUMNODES) if (numa_valid_node(nid))
node_set(nid, reserved_nodemask); node_set(nid, reserved_nodemask);
} }