diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-12 10:15:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-12 10:15:10 -0700 |
| commit | 1021a645344d4a77333e19e60d37b9343be0d7b7 (patch) | |
| tree | 7a78ab55f27f97209ed1b85ccfd88c6d5b8416d3 /mm/hwpoison-inject.c | |
| parent | 7367f5b013fee33f7d40a5a10a39d5134f529ec8 (diff) | |
| parent | 28957a5467bab9ed51a237d21e31055fad987887 (diff) | |
Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6
* 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6:
hugetlb: add missing unlock in avoidcopy path in hugetlb_cow()
hwpoison: rename CONFIG
HWPOISON, hugetlb: support hwpoison injection for hugepage
HWPOISON, hugetlb: detect hwpoison in hugetlb code
HWPOISON, hugetlb: isolate corrupted hugepage
HWPOISON, hugetlb: maintain mce_bad_pages in handling hugepage error
HWPOISON, hugetlb: set/clear PG_hwpoison bits on hugepage
HWPOISON, hugetlb: enable error handling path for hugepage
hugetlb, rmap: add reverse mapping for hugepage
hugetlb: move definition of is_vm_hugetlb_page() to hugepage_inline.h
Fix up trivial conflicts in mm/memory-failure.c
Diffstat (limited to 'mm/hwpoison-inject.c')
| -rw-r--r-- | mm/hwpoison-inject.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/mm/hwpoison-inject.c b/mm/hwpoison-inject.c index 10ea71905c1..0948f1072d6 100644 --- a/mm/hwpoison-inject.c +++ b/mm/hwpoison-inject.c @@ -5,6 +5,7 @@ #include <linux/mm.h> #include <linux/swap.h> #include <linux/pagemap.h> +#include <linux/hugetlb.h> #include "internal.h" static struct dentry *hwpoison_dir; @@ -13,6 +14,7 @@ static int hwpoison_inject(void *data, u64 val) { unsigned long pfn = val; struct page *p; + struct page *hpage; int err; if (!capable(CAP_SYS_ADMIN)) @@ -24,18 +26,19 @@ static int hwpoison_inject(void *data, u64 val) return -ENXIO; p = pfn_to_page(pfn); + hpage = compound_head(p); /* * This implies unable to support free buddy pages. */ - if (!get_page_unless_zero(p)) + if (!get_page_unless_zero(hpage)) return 0; - if (!PageLRU(p)) + if (!PageLRU(p) && !PageHuge(p)) shake_page(p, 0); /* * This implies unable to support non-LRU pages. */ - if (!PageLRU(p)) + if (!PageLRU(p) && !PageHuge(p)) return 0; /* @@ -44,9 +47,9 @@ static int hwpoison_inject(void *data, u64 val) * We temporarily take page lock for try_get_mem_cgroup_from_page(). * __memory_failure() will redo the check reliably inside page lock. */ - lock_page(p); - err = hwpoison_filter(p); - unlock_page(p); + lock_page(hpage); + err = hwpoison_filter(hpage); + unlock_page(hpage); if (err) return 0; |