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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 14:17:11 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 14:17:11 -0800
commit766ec76a27aa9dfdfee3a80f29ddc1f7539c71f9 (patch)
tree95f096ce298606ef9f12195a24c10b2869bcb7a1
parent0be500363c6709032254cd52c8059d9ace61de73 (diff)
parent438a50618095061920d3a30d4c5ca1ef2e0ff860 (diff)
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Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
Pull percpu update from Tejun Heo: "Another minor pull request. It only contains one commit which can reclaim a bit of memory wasted during boot on UP" * 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: don't forget to free the temporary struct pcpu_alloc_info
-rw-r--r--mm/percpu.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index a0e0c82c1e4c..79e3549cab0f 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1856,7 +1856,7 @@ struct pcpu_alloc_info * __init pcpu_alloc_alloc_info(int nr_groups,
__alignof__(ai->groups[0].cpu_map[0]));
ai_size = base_size + nr_units * sizeof(ai->groups[0].cpu_map[0]);
- ptr = memblock_virt_alloc_nopanic(PFN_ALIGN(ai_size), 0);
+ ptr = memblock_virt_alloc_nopanic(PFN_ALIGN(ai_size), PAGE_SIZE);
if (!ptr)
return NULL;
ai = ptr;
@@ -2719,6 +2719,7 @@ void __init setup_per_cpu_areas(void)
if (pcpu_setup_first_chunk(ai, fc) < 0)
panic("Failed to initialize percpu areas.");
+ pcpu_free_alloc_info(ai);
}
#endif /* CONFIG_SMP */