diff options
| author | Christoph Lameter <clameter@sgi.com> | 2006-06-25 16:46:47 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-25 21:00:55 +0400 |
| commit | 68402ddc677005ed1b1359bbc1f279548cfc0928 (patch) | |
| tree | 83da62a2b55e2ea7e0c46ed79c0d6498d36e1942 /arch/ia64 | |
| parent | 9f1a3cfcffaed2fbb3206179295c79ca8289f5c3 (diff) | |
| download | linux-68402ddc677005ed1b1359bbc1f279548cfc0928.tar.xz | |
[PATCH] mm: remove VM_LOCKED before remap_pfn_range and drop VM_SHM
Remove VM_LOCKED before remap_pfn range from device drivers and get rid of
VM_SHM.
remap_pfn_range() already sets VM_IO. There is no need to set VM_SHM since
it does nothing. VM_LOCKED is of no use since the remap_pfn_range does not
place pages on the LRU. The pages are therefore never subject to swap
anyways. Remove all the vm_flags settings before calling remap_pfn_range.
After removing all the vm_flag settings no use of VM_SHM is left. Drop it.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/pci/pci.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 61dd8608da4f..77375a55da31 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -602,8 +602,6 @@ pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma, * Leave vm_pgoff as-is, the PCI space address is the physical * address on this platform. */ - vma->vm_flags |= (VM_SHM | VM_RESERVED | VM_IO); - if (write_combine && efi_range_is_wc(vma->vm_start, vma->vm_end - vma->vm_start)) vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); @@ -666,7 +664,6 @@ pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma) vma->vm_pgoff += (unsigned long)addr >> PAGE_SHIFT; vma->vm_page_prot = prot; - vma->vm_flags |= (VM_SHM | VM_RESERVED | VM_IO); if (remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, size, vma->vm_page_prot)) |