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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
hifive-unleashed-5.1
Linus Torvalds 2017-11-15 14:17:11 -08:00
parent 0be500363c 438a506180
commit 766ec76a27
1 changed files with 2 additions and 1 deletions
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3
mm/percpu.c
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@ -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 */