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powerpc/mm: Simplify loop control in parse_numa_properties()

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The flow of the main loop in parse_numa_properties() is overly
complicated. Simplify it to be less confusing and easier to read.
No functional change.

The end of the main loop in parse_numa_properties() looks like this:

	for_each_node_by_type(...) {
		...
		if (!condition) {
			if (--ranges)
				goto new_range;
			else
				continue;
		}

		statement();

		if (--ranges)
			goto new_range;
		/* else
		 *	continue; <- implicit, this is the end of the loop
		 */
	}

The only effect of !condition is to skip execution of statement(). This
can be rewritten in a simpler way:

	for_each_node_by_type(...) {
		...
		if (condition)
			statement();

		if (--ranges)
			goto new_range;
	}

Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Reza Arbab
2016-10-13 13:45:30 -05:00
committed by Michael Ellerman
parent f2a5e8f002
commit 7656cd8e8e
1 changed files with 3 additions and 8 deletions
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11
arch/powerpc/mm/numa.c
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@@ -786,14 +786,9 @@ static int __init parse_numa_properties(void)
fake_numa_create_new_node(((start + size) >> PAGE_SHIFT), &nid);
node_set_online(nid);
if (!(size = numa_enforce_memory_limit(start, size))) {
if (--ranges)
goto new_range;
else
continue;
}
memblock_set_node(start, size, &memblock.memory, nid);
size = numa_enforce_memory_limit(start, size);
if (size)
memblock_set_node(start, size, &memblock.memory, nid);
if (--ranges)
goto new_range;