diff options
Diffstat (limited to 'mm/memory-failure.c')
| -rw-r--r-- | mm/memory-failure.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 89ad452182bb..ed339c505d55 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -380,10 +380,12 @@ static void kill_procs(struct list_head *to_kill, int forcekill, int trapno, } } -static int task_early_kill(struct task_struct *tsk) +static int task_early_kill(struct task_struct *tsk, int force_early) { if (!tsk->mm) return 0; + if (force_early) + return 1; if (tsk->flags & PF_MCE_PROCESS) return !!(tsk->flags & PF_MCE_EARLY); return sysctl_memory_failure_early_kill; @@ -393,7 +395,7 @@ static int task_early_kill(struct task_struct *tsk) * Collect processes when the error hit an anonymous page. */ static void collect_procs_anon(struct page *page, struct list_head *to_kill, - struct to_kill **tkc) + struct to_kill **tkc, int force_early) { struct vm_area_struct *vma; struct task_struct *tsk; @@ -409,7 +411,7 @@ static void collect_procs_anon(struct page *page, struct list_head *to_kill, for_each_process (tsk) { struct anon_vma_chain *vmac; - if (!task_early_kill(tsk)) + if (!task_early_kill(tsk, force_early)) continue; anon_vma_interval_tree_foreach(vmac, &av->rb_root, pgoff, pgoff) { @@ -428,7 +430,7 @@ static void collect_procs_anon(struct page *page, struct list_head *to_kill, * Collect processes when the error hit a file mapped page. */ static void collect_procs_file(struct page *page, struct list_head *to_kill, - struct to_kill **tkc) + struct to_kill **tkc, int force_early) { struct vm_area_struct *vma; struct task_struct *tsk; @@ -439,7 +441,7 @@ static void collect_procs_file(struct page *page, struct list_head *to_kill, for_each_process(tsk) { pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT); - if (!task_early_kill(tsk)) + if (!task_early_kill(tsk, force_early)) continue; vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, @@ -465,7 +467,8 @@ static void collect_procs_file(struct page *page, struct list_head *to_kill, * First preallocate one tokill structure outside the spin locks, * so that we can kill at least one process reasonably reliable. */ -static void collect_procs(struct page *page, struct list_head *tokill) +static void collect_procs(struct page *page, struct list_head *tokill, + int force_early) { struct to_kill *tk; @@ -476,9 +479,9 @@ static void collect_procs(struct page *page, struct list_head *tokill) if (!tk) return; if (PageAnon(page)) - collect_procs_anon(page, tokill, &tk); + collect_procs_anon(page, tokill, &tk, force_early); else - collect_procs_file(page, tokill, &tk); + collect_procs_file(page, tokill, &tk, force_early); kfree(tk); } @@ -963,7 +966,7 @@ static int hwpoison_user_mappings(struct page *p, unsigned long pfn, * there's nothing that can be done. */ if (kill) - collect_procs(ppage, &tokill); + collect_procs(ppage, &tokill, flags & MF_ACTION_REQUIRED); ret = try_to_unmap(ppage, ttu); if (ret != SWAP_SUCCESS) |