diff options
| author |  Naoya Horiguchi <naoya.horiguchi@nec.com>
| 2022-07-14 13:24:16 +0900 |
|---|---|---|
| committer |  Andrew Morton <akpm@linux-foundation.org>
| 2022-08-08 18:06:44 -0700 |
| commit | ac5fcde0a96a18773f06b7c00c5ea081bbdc64b3 (patch) | |
| tree | d43c1dcc17a8412deb8de67f3a29b692141d2287 /include | |
| parent | mm, hwpoison, hugetlb: support saving mechanism of raw error pages (diff) | |
| download | linux-ac5fcde0a96a18773f06b7c00c5ea081bbdc64b3.tar.gz linux-ac5fcde0a96a18773f06b7c00c5ea081bbdc64b3.tar.bz2 linux-ac5fcde0a96a18773f06b7c00c5ea081bbdc64b3.zip | |
mm, hwpoison: make unpoison aware of raw error info in hwpoisoned hugepage
Raw error info list needs to be removed when hwpoisoned hugetlb is
unpoisoned. And unpoison handler needs to know how many errors there are
in the target hugepage. So add them.
HPageVmemmapOptimized(hpage) and HPageRawHwpUnreliable(hpage)) sometimes
can't be unpoisoned, so skip them.
Link: https://lkml.kernel.org/r/20220714042420.1847125-5-naoya.horiguchi@linux.dev
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Liu Shixin <liushixin2@huawei.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/swapops.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/swapops.h b/include/linux/swapops.h index bb7afd03a324..a3d435bf9f97 100644 --- a/include/linux/swapops.h +++ b/include/linux/swapops.h @@ -490,6 +490,11 @@ static inline void num_poisoned_pages_dec(void) atomic_long_dec(&num_poisoned_pages); } +static inline void num_poisoned_pages_sub(long i) +{ + atomic_long_sub(i, &num_poisoned_pages); +} + #else static inline swp_entry_t make_hwpoison_entry(struct page *page) @@ -505,6 +510,10 @@ static inline int is_hwpoison_entry(swp_entry_t swp) static inline void num_poisoned_pages_inc(void) { } + +static inline void num_poisoned_pages_sub(long i) +{ +} #endif static inline int non_swap_entry(swp_entry_t entry) |