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authorTejun Heo <tj@kernel.org>2009-02-20 16:29:08 +0900
committerTejun Heo <tj@kernel.org>2009-02-20 16:29:08 +0900
commit8fc48985006da4ceba24508db64ec77fc0dfe3bb (patch)
tree2234b92b13c53bfd1972e967c50ff305b6efe013 /include/linux/vmalloc.h
parentf0aa6617903648077dffe5cfcf7c4458f4610fa7 (diff)
vmalloc: add un/map_kernel_range_noflush()
Impact: two more public map/unmap functions Implement map_kernel_range_noflush() and unmap_kernel_range_noflush(). These functions respectively map and unmap address range in kernel VM area but doesn't do any vcache or tlb flushing. These will be used by new percpu allocator. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Diffstat (limited to 'include/linux/vmalloc.h')
-rw-r--r--include/linux/vmalloc.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index bbc05139229..599ba798431 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -91,6 +91,9 @@ extern struct vm_struct *remove_vm_area(const void *addr);
extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
struct page ***pages);
+extern int map_kernel_range_noflush(unsigned long start, unsigned long size,
+ pgprot_t prot, struct page **pages);
+extern void unmap_kernel_range_noflush(unsigned long addr, unsigned long size);
extern void unmap_kernel_range(unsigned long addr, unsigned long size);
/* Allocate/destroy a 'vmalloc' VM area. */