mm: bootmem: split out goal-to-node mapping from goal dropping (c12ab504) · Commits · 戴 / test

Matching the desired goal to the right node is one thing, dropping the goal when it can not be satisfied is another. Split this into separate functions so that subsequent patches can use the node-finding but drop and handle the goal fallback on their own terms. Signed-off-by:

Johannes Weiner <hannes@cmpxchg.org> Acked-by:

Tejun Heo <tj@kernel.org> Acked-by:

David S. Miller <davem@davemloft.net> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by:

Andrew Morton <akpm@linux-foundation.org> Signed-off-by:

Linus Torvalds <torvalds@linux-foundation.org>

mm/bootmem.c

+15 −2

Original line number	Diff line number	Diff line
		@@ -596,7 +596,7 @@ static void * __init alloc_arch_preferred_bootmem(bootmem_data_t *bdata,
		return NULL;
		}

		static void * __init ___alloc_bootmem_nopanic(unsigned long size,
		static void * __init alloc_bootmem_core(unsigned long size,
		unsigned long align,
		unsigned long goal,
		unsigned long limit)
		@@ -604,7 +604,6 @@ static void * __init ___alloc_bootmem_nopanic(unsigned long size,
		bootmem_data_t *bdata;
		void *region;

		restart:
		region = alloc_arch_preferred_bootmem(NULL, size, align, goal, limit);
		if (region)
		return region;
		@@ -620,6 +619,20 @@ restart:
		return region;
		}

		return NULL;
		}

		static void * __init ___alloc_bootmem_nopanic(unsigned long size,
		unsigned long align,
		unsigned long goal,
		unsigned long limit)
		{
		void *ptr;

		restart:
		ptr = alloc_bootmem_core(size, align, goal, limit);
		if (ptr)
		return ptr;
		if (goal) {
		goal = 0;
		goto restart;

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