diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/mm/memory.c b/mm/memory.c index 387226d6094d..808f354bce65 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -5880,16 +5880,14 @@ long copy_huge_page_from_user(struct page *dst_page, for (i = 0; i < pages_per_huge_page; i++) { subpage = nth_page(dst_page, i); - if (allow_pagefault) - page_kaddr = kmap(subpage); - else - page_kaddr = kmap_atomic(subpage); + page_kaddr = kmap_local_page(subpage); + if (!allow_pagefault) + pagefault_disable(); rc = copy_from_user(page_kaddr, usr_src + i * PAGE_SIZE, PAGE_SIZE); - if (allow_pagefault) - kunmap(subpage); - else - kunmap_atomic(page_kaddr); + if (!allow_pagefault) + pagefault_enable(); + kunmap_local(page_kaddr); ret_val -= (PAGE_SIZE - rc); if (rc) |