The patch titled
Subject: mm-memory-failure-use-a-mutex-to-avoid-memory_failure-races-fix
has been added to the -mm tree. Its filename is
mm-memory-failure-use-a-mutex-to-avoid-memory_failure-races-fix.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-memory-failure-use-a-mutex-to-avoid-memory_failure-races-fix.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-memory-failure-use-a-mutex-to-avoid-memory_failure-races-fix.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm-memory-failure-use-a-mutex-to-avoid-memory_failure-races-fix
make mf_mutex local to memory_failure()
Cc: Aili Yao <yaoaili@xxxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Jue Wang <juew@xxxxxxxxxx>
Cc: Naoya Horiguchi <naoya.horiguchi@xxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory-failure.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/mm/memory-failure.c~mm-memory-failure-use-a-mutex-to-avoid-memory_failure-races-fix
+++ a/mm/memory-failure.c
@@ -1397,8 +1397,6 @@ out:
return rc;
}
-static DEFINE_MUTEX(mf_mutex);
-
/**
* memory_failure - Handle memory failure of a page.
* @pfn: Page Number of the corrupted page
@@ -1425,6 +1423,7 @@ int memory_failure(unsigned long pfn, in
int res = 0;
unsigned long page_flags;
bool retry = true;
+ static DEFINE_MUTEX(mf_mutex);
if (!sysctl_memory_failure_recovery)
panic("Memory failure on page %lx", pfn);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
mm.patch
mm-slub-kunit-add-a-kunit-test-for-slub-debugging-functionality-fix-2.patch
mm-gup-pack-has_pinned-in-mmf_has_pinned-checkpatch-fixes.patch
mm-memcg-optimize-user-context-object-stock-access-checkpatch-fixes.patch
mm-memcg-slab-create-a-new-set-of-kmalloc-cg-n-caches-v5-fix.patch
binfmt-remove-in-tree-usage-of-map_executable-fix.patch
mm-mmap-introduce-unlock_range-for-code-cleanup-fix.patch
powerpc-mm-book3s64-update-tlb-flush-routines-to-take-a-page-walk-cache-flush-argument-fix.patch
mm-mremap-use-range-flush-that-does-tlb-and-page-walk-cache-flush-fix.patch
mm-memory-failure-use-a-mutex-to-avoid-memory_failure-races-fix.patch
mm-memory_hotplug-disable-memmap_on_memory-when-hugetlb_free_vmemmap-enabled-fix.patch
mm-thp-check-total_mapcount-instead-of-page_mapcount-fix-fix.patch
nommu-remove-__gfp_highmem-in-vmalloc-vzalloc-checkpatch-fixes.patch
mm-madvise-introduce-madv_populate_readwrite-to-prefault-page-tables-checkpatch-fixes.patch
kernelh-split-out-panic-and-oops-helpers-fix.patch
lib-decompressors-remove-set-but-not-used-variabled-level-fix.patch
linux-next-git-rejects.patch
mm-introduce-memfd_secret-system-call-to-create-secret-memory-areas-fix.patch
module-add-printk-formats-to-add-module-build-id-to-stacktraces-fix.patch
kernel-forkc-export-kernel_thread-to-modules.patch
