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| author | Hugh Dickins <hugh@veritas.com> | 2005-11-29 16:54:51 +0000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-29 14:09:16 -0800 |
| commit | e5bbe4dfc8dbfc50ef89f8641e020616d4d1e69e (patch) | |
| tree | 8bf22ece18b6f7e20024bef19d8afd2a0b07556a /mm/memory.c | |
| parent | 5d2a2dbbc1025dbf7998b9289574d9592b8f21cc (diff) | |
| download | linux-3.10-e5bbe4dfc8dbfc50ef89f8641e020616d4d1e69e.tar.gz linux-3.10-e5bbe4dfc8dbfc50ef89f8641e020616d4d1e69e.tar.bz2 linux-3.10-e5bbe4dfc8dbfc50ef89f8641e020616d4d1e69e.zip | |
[PATCH] pfnmap: remove src_page from do_wp_page
Clean away do_wp_page's "src_page": cow_user_page makes it unnecessary.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/mm/memory.c b/mm/memory.c index 745b3482e6c..ae259b6e5a2 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1433,12 +1433,11 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, pte_t *page_table, pmd_t *pmd, spinlock_t *ptl, pte_t orig_pte) { - struct page *old_page, *src_page, *new_page; + struct page *old_page, *new_page; pte_t entry; int ret = VM_FAULT_MINOR; old_page = vm_normal_page(vma, address, orig_pte); - src_page = old_page; if (!old_page) goto gotten; @@ -1466,7 +1465,7 @@ gotten: if (unlikely(anon_vma_prepare(vma))) goto oom; - if (src_page == ZERO_PAGE(address)) { + if (old_page == ZERO_PAGE(address)) { new_page = alloc_zeroed_user_highpage(vma, address); if (!new_page) goto oom; @@ -1474,7 +1473,7 @@ gotten: new_page = alloc_page_vma(GFP_HIGHUSER, vma, address); if (!new_page) goto oom; - cow_user_page(new_page, src_page, address); + cow_user_page(new_page, old_page, address); } /* |