diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-01-30 18:23:30 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-30 18:23:30 +0100 |
| commit | c43e0e46adf79c321ed3fbf0351e1005fb8a2413 (patch) | |
| tree | 35b9ab361651f649d3c9aa69f159812eba50d154 /mm/mmap.c | |
| parent | dba3d36b2f0842ed7f25c33cd3a2ccdb3d0df9db (diff) | |
| parent | f2257b70b0f9b2fe8f2afd83fc6798dca75930b8 (diff) | |
Merge branch 'linus' into core/percpu
Conflicts:
kernel/irq/handle.c
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 26 |
1 files changed, 6 insertions, 20 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index 8d95902e9a38..d3fa10a726cf 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1134,16 +1134,11 @@ munmap_back: } /* - * Can we just expand an old private anonymous mapping? - * The VM_SHARED test is necessary because shmem_zero_setup - * will create the file object for a shared anonymous map below. + * Can we just expand an old mapping? */ - if (!file && !(vm_flags & VM_SHARED)) { - vma = vma_merge(mm, prev, addr, addr + len, vm_flags, - NULL, NULL, pgoff, NULL); - if (vma) - goto out; - } + vma = vma_merge(mm, prev, addr, addr + len, vm_flags, NULL, file, pgoff, NULL); + if (vma) + goto out; /* * Determine the object being mapped and call the appropriate @@ -1206,17 +1201,8 @@ munmap_back: if (vma_wants_writenotify(vma)) vma->vm_page_prot = vm_get_page_prot(vm_flags & ~VM_SHARED); - if (file && vma_merge(mm, prev, addr, vma->vm_end, - vma->vm_flags, NULL, file, pgoff, vma_policy(vma))) { - mpol_put(vma_policy(vma)); - kmem_cache_free(vm_area_cachep, vma); - fput(file); - if (vm_flags & VM_EXECUTABLE) - removed_exe_file_vma(mm); - } else { - vma_link(mm, vma, prev, rb_link, rb_parent); - file = vma->vm_file; - } + vma_link(mm, vma, prev, rb_link, rb_parent); + file = vma->vm_file; /* Once vma denies write, undo our temporary denial count */ if (correct_wcount) |