diff options
Diffstat (limited to 'mm/filemap.c')
-rw-r--r-- | mm/filemap.c | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 1e6aec4a2d2e..ae4846ff4849 100644 --- a/mm/filemap.c +++ b/mm/filemap.c | |||
@@ -1616,7 +1616,6 @@ int filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) | |||
1616 | struct inode *inode = mapping->host; | 1616 | struct inode *inode = mapping->host; |
1617 | pgoff_t offset = vmf->pgoff; | 1617 | pgoff_t offset = vmf->pgoff; |
1618 | struct page *page; | 1618 | struct page *page; |
1619 | bool memcg_oom; | ||
1620 | pgoff_t size; | 1619 | pgoff_t size; |
1621 | int ret = 0; | 1620 | int ret = 0; |
1622 | 1621 | ||
@@ -1625,11 +1624,7 @@ int filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) | |||
1625 | return VM_FAULT_SIGBUS; | 1624 | return VM_FAULT_SIGBUS; |
1626 | 1625 | ||
1627 | /* | 1626 | /* |
1628 | * Do we have something in the page cache already? Either | 1627 | * Do we have something in the page cache already? |
1629 | * way, try readahead, but disable the memcg OOM killer for it | ||
1630 | * as readahead is optional and no errors are propagated up | ||
1631 | * the fault stack. The OOM killer is enabled while trying to | ||
1632 | * instantiate the faulting page individually below. | ||
1633 | */ | 1628 | */ |
1634 | page = find_get_page(mapping, offset); | 1629 | page = find_get_page(mapping, offset); |
1635 | if (likely(page) && !(vmf->flags & FAULT_FLAG_TRIED)) { | 1630 | if (likely(page) && !(vmf->flags & FAULT_FLAG_TRIED)) { |
@@ -1637,14 +1632,10 @@ int filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) | |||
1637 | * We found the page, so try async readahead before | 1632 | * We found the page, so try async readahead before |
1638 | * waiting for the lock. | 1633 | * waiting for the lock. |
1639 | */ | 1634 | */ |
1640 | memcg_oom = mem_cgroup_toggle_oom(false); | ||
1641 | do_async_mmap_readahead(vma, ra, file, page, offset); | 1635 | do_async_mmap_readahead(vma, ra, file, page, offset); |
1642 | mem_cgroup_toggle_oom(memcg_oom); | ||
1643 | } else if (!page) { | 1636 | } else if (!page) { |
1644 | /* No page in the page cache at all */ | 1637 | /* No page in the page cache at all */ |
1645 | memcg_oom = mem_cgroup_toggle_oom(false); | ||
1646 | do_sync_mmap_readahead(vma, ra, file, offset); | 1638 | do_sync_mmap_readahead(vma, ra, file, offset); |
1647 | mem_cgroup_toggle_oom(memcg_oom); | ||
1648 | count_vm_event(PGMAJFAULT); | 1639 | count_vm_event(PGMAJFAULT); |
1649 | mem_cgroup_count_vm_event(vma->vm_mm, PGMAJFAULT); | 1640 | mem_cgroup_count_vm_event(vma->vm_mm, PGMAJFAULT); |
1650 | ret = VM_FAULT_MAJOR; | 1641 | ret = VM_FAULT_MAJOR; |