The patch titled
Subject: mm, page_alloc: only use per-cpu allocator for irq-safe requests -fix
has been added to the -mm tree. Its filename is
mm-page_alloc-only-use-per-cpu-allocator-for-irq-safe-requests-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-page_alloc-only-use-per-cpu-allocator-for-irq-safe-requests-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-page_alloc-only-use-per-cpu-allocator-for-irq-safe-requests-fix.patch
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------------------------------------------------------
From: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Subject: mm, page_alloc: only use per-cpu allocator for irq-safe requests -fix
fix a dumb mistake and stick to preempt_enable
Link: http://lkml.kernel.org/r/20170208143128.25ahymqlyspjcixu@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/page_alloc.c~mm-page_alloc-only-use-per-cpu-allocator-for-irq-safe-requests-fix mm/page_alloc.c
--- a/mm/page_alloc.c~mm-page_alloc-only-use-per-cpu-allocator-for-irq-safe-requests-fix
+++ a/mm/page_alloc.c
@@ -2517,7 +2517,7 @@ void free_hot_cold_page(struct page *pag
}
out:
- preempt_enable_no_resched();
+ preempt_enable();
}
/*
@@ -2683,7 +2683,7 @@ static struct page *rmqueue_pcplist(stru
__count_zid_vm_events(PGALLOC, page_zonenum(page), 1 << order);
zone_statistics(preferred_zone, zone);
}
- preempt_enable_no_resched();
+ preempt_enable();
return page;
}
_
Patches currently in -mm which might be from mgorman@xxxxxxxxxxxxxxxxxxx are
mm-page_alloc-split-buffered_rmqueue.patch
mm-page_alloc-split-buffered_rmqueue-fix.patch
mm-page_alloc-split-alloc_pages_nodemask.patch
mm-page_alloc-drain-per-cpu-pages-from-workqueue-context.patch
mm-page_alloc-only-use-per-cpu-allocator-for-irq-safe-requests.patch
mm-page_alloc-only-use-per-cpu-allocator-for-irq-safe-requests-fix.patch
mm-page_alloc-use-static-global-work_struct-for-draining-per-cpu-pages.patch
--
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