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| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-08-30 20:36:01 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-09-26 19:46:04 -0700 |
| commit | 21c9e90ab9a4c991d21dd15cc5163c99a885d4a8 (patch) | |
| tree | 705341267c4441163ed9e4c1f949c577b7dd1e65 /mm/memory-failure.c | |
| parent | da29499124cd2221539b235c1f93c7d93faf6565 (diff) | |
| download | linux-21c9e90ab9a4c991d21dd15cc5163c99a885d4a8.tar.bz2 | |
mm, hwpoison: use num_poisoned_pages_sub() to decrease num_poisoned_pages
Use num_poisoned_pages_sub() to combine multiple atomic ops into one. Also
num_poisoned_pages_dec() can be killed as there's no caller now.
Link: https://lkml.kernel.org/r/20220830123604.25763-4-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memory-failure.c')
| -rw-r--r-- | mm/memory-failure.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index e9baa9e51f01..01ce87f5706a 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -2602,7 +2602,7 @@ retry: void clear_hwpoisoned_pages(struct page *memmap, int nr_pages) { - int i; + int i, total = 0; /* * A further optimization is to have per section refcounted @@ -2615,8 +2615,10 @@ void clear_hwpoisoned_pages(struct page *memmap, int nr_pages) for (i = 0; i < nr_pages; i++) { if (PageHWPoison(&memmap[i])) { - num_poisoned_pages_dec(); + total++; ClearPageHWPoison(&memmap[i]); } } + if (total) + num_poisoned_pages_sub(total); } |