Messages in this thread Patch in this message | | | From | Yuntao Wang <> | Subject | [PATCH] x86/mm: Optimize the for loop in numa_nodemask_from_meminfo() | Date | Thu, 7 Dec 2023 21:16:58 +0800 |
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Since only the first `mi->nr_blks` elements of the `mi->blk` array contain valid data, we do not need to iterate over the entire array.
Signed-off-by: Yuntao Wang <ytcoode@gmail.com> --- arch/x86/mm/numa.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index b29ceb19e46e..e84f14a9462d 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -339,7 +339,7 @@ static void __init numa_nodemask_from_meminfo(nodemask_t *nodemask, { int i; - for (i = 0; i < ARRAY_SIZE(mi->blk); i++) + for (i = 0; i < mi->nr_blks; i++) if (mi->blk[i].start != mi->blk[i].end && mi->blk[i].nid != NUMA_NO_NODE) node_set(mi->blk[i].nid, *nodemask); -- 2.43.0
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