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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-02-25 15:38:13 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-02-25 15:38:13 -0800 |
| commit | d2a0476307e67a6e6a293563a4f4ad4ec79ac0e5 (patch) | |
| tree | 45abc67e451fae6c0c4403014bb1cda4d2a1fe3a /mm/memory.c | |
| parent | 6dba6ecba7d937e9b04b46f6cdff25e574f64857 (diff) | |
| parent | 61bd0943bc410c9f0daf0965535cb92ce76e1e8a (diff) | |
Merge branch 'akpm' (patches from Andrew Morton)
Merge misc fixes from Andrew Morton.
* emailed patches from Andrew Morton akpm@linux-foundation.org>:
MAINTAINERS: change mailing list address for Altera UART drivers
Makefile: fix build with make 3.80 again
MAINTAINERS: update L: misuses
Makefile: fix extra parenthesis typo when CC_STACKPROTECTOR_REGULAR is enabled
ipc,mqueue: remove limits for the amount of system-wide queues
memcg: change oom_info_lock to mutex
mm, thp: fix infinite loop on memcg OOM
drivers/fmc/fmc-write-eeprom.c: fix decimal permissions
drivers/iommu/omap-iommu-debug.c: fix decimal permissions
mm, hwpoison: release page on PageHWPoison() in __do_fault()
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/mm/memory.c b/mm/memory.c index be6a0c0d4ae0..22dfa617bddb 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3348,6 +3348,7 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma, if (ret & VM_FAULT_LOCKED) unlock_page(vmf.page); ret = VM_FAULT_HWPOISON; + page_cache_release(vmf.page); goto uncharge_out; } @@ -3703,7 +3704,6 @@ static int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, if (unlikely(is_vm_hugetlb_page(vma))) return hugetlb_fault(mm, vma, address, flags); -retry: pgd = pgd_offset(mm, address); pud = pud_alloc(mm, pgd, address); if (!pud) @@ -3741,20 +3741,13 @@ retry: if (dirty && !pmd_write(orig_pmd)) { ret = do_huge_pmd_wp_page(mm, vma, address, pmd, orig_pmd); - /* - * If COW results in an oom, the huge pmd will - * have been split, so retry the fault on the - * pte for a smaller charge. - */ - if (unlikely(ret & VM_FAULT_OOM)) - goto retry; - return ret; + if (!(ret & VM_FAULT_FALLBACK)) + return ret; } else { huge_pmd_set_accessed(mm, vma, address, pmd, orig_pmd, dirty); + return 0; } - - return 0; } } |