diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/madvise.c | 2 | ||||
| -rw-r--r-- | mm/memory-failure.c | 5 |
2 files changed, 4 insertions, 3 deletions
diff --git a/mm/madvise.c b/mm/madvise.c index 18970ae..6ca34f0 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -237,7 +237,7 @@ static int madvise_hwpoison(unsigned long start, unsigned long end) printk(KERN_INFO "Injecting memory failure for page %lx at %lx\n", page_to_pfn(p), start); /* Ignore return value for now */ - __memory_failure(page_to_pfn(p), 0, 1); + __memory_failure(page_to_pfn(p), 0, MF_COUNT_INCREASED); } return ret; } diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 4253e14..3338c44 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -737,7 +737,7 @@ static void hwpoison_user_mappings(struct page *p, unsigned long pfn, ret != SWAP_SUCCESS, pfn); } -int __memory_failure(unsigned long pfn, int trapno, int ref) +int __memory_failure(unsigned long pfn, int trapno, int flags) { unsigned long lru_flag; struct page_state *ps; @@ -773,7 +773,8 @@ int __memory_failure(unsigned long pfn, int trapno, int ref) * In fact it's dangerous to directly bump up page count from 0, * that may make page_freeze_refs()/page_unfreeze_refs() mismatch. */ - if (!ref && !get_page_unless_zero(compound_head(p))) { + if (!(flags & MF_COUNT_INCREASED) && + !get_page_unless_zero(compound_head(p))) { action_result(pfn, "free or high order kernel", IGNORED); return PageBuddy(compound_head(p)) ? 0 : -EBUSY; } |