Commit 14d9a675 authored by Ma Wupeng's avatar Ma Wupeng Committed by Ard Biesheuvel
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mm: Ratelimited mirrored memory related warning messages 



If system has mirrored memory, memblock will try to allocate mirrored
memory firstly and fallback to non-mirrored memory when fails, but if with
limited mirrored memory or some numa node without mirrored memory, lots of
warning message about memblock allocation will occur.

This patch ratelimit the warning message to avoid a very long print during
bootup.

Signed-off-by: default avatarMa Wupeng <mawupeng1@huawei.com>
Reviewed-by: default avatarDavid Hildenbrand <david@redhat.com>
Acked-by: default avatarMike Rapoport <rppt@linux.ibm.com>
Reviewed-by: default avatarAnshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Link: https://lore.kernel.org/r/20220614092156.1972846-3-mawupeng1@huawei.com


Acked-by: default avatarMike Rapoport <rppt@linux.ibm.com>
Signed-off-by: default avatarArd Biesheuvel <ardb@kernel.org>
parent 6365a193

mm/memblock.c

+2 −2
Original line number Diff line number Diff line
@@ -327,7 +327,7 @@ static phys_addr_t __init_memblock memblock_find_in_range(phys_addr_t start, 
					    NUMA_NO_NODE, flags);



	if (!ret && (flags & MEMBLOCK_MIRROR)) {

		pr_warn("Could not allocate %pap bytes of mirrored memory\n",

		pr_warn_ratelimited("Could not allocate %pap bytes of mirrored memory\n",

			&size);

		flags &= ~MEMBLOCK_MIRROR;

		goto again;
@@ -1384,7 +1384,7 @@ phys_addr_t __init memblock_alloc_range_nid(phys_addr_t size, 


	if (flags & MEMBLOCK_MIRROR) {

		flags &= ~MEMBLOCK_MIRROR;

		pr_warn("Could not allocate %pap bytes of mirrored memory\n",

		pr_warn_ratelimited("Could not allocate %pap bytes of mirrored memory\n",

			&size);

		goto again;

	}