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authorChristoph Lameter <clameter@sgi.com>2006-06-25 08:46:47 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-25 13:00:55 -0400
commit68402ddc677005ed1b1359bbc1f279548cfc0928 (patch)
tree83da62a2b55e2ea7e0c46ed79c0d6498d36e1942 /drivers/char
parent9f1a3cfcffaed2fbb3206179295c79ca8289f5c3 (diff)
[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 'drivers/char')
-rw-r--r--drivers/char/mmtimer.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/char/mmtimer.c b/drivers/char/mmtimer.c
index 1b05fa688996..d65b3109318a 100644
--- a/drivers/char/mmtimer.c
+++ b/drivers/char/mmtimer.c
@@ -329,7 +329,6 @@ static int mmtimer_mmap(struct file *file, struct vm_area_struct *vma)
329 if (PAGE_SIZE > (1 << 16)) 329 if (PAGE_SIZE > (1 << 16))
330 return -ENOSYS; 330 return -ENOSYS;
331 331
332 vma->vm_flags |= (VM_IO | VM_SHM | VM_LOCKED );
333 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 332 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
334 333
335 mmtimer_addr = __pa(RTC_COUNTER_ADDR); 334 mmtimer_addr = __pa(RTC_COUNTER_ADDR);