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| author | Jeremy Fitzhardinge <jeremy@xensource.com> | 2007-07-18 05:37:04 +0400 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy@goop.org> | 2007-07-18 19:47:41 +0400 |
| commit | 5f4352fbffd6c45123dbce9e195efd54df4e177e (patch) | |
| tree | e2a0316e2f2d22c266e7cae3015ddc0f2f77f64f /include | |
| parent | bdef40a6af64a0140a65df49bf504124d57094a9 (diff) | |
| download | linux-5f4352fbffd6c45123dbce9e195efd54df4e177e.tar.xz | |
Allocate and free vmalloc areas
Allocate/release a chunk of vmalloc address space:
alloc_vm_area reserves a chunk of address space, and makes sure all
the pagetables are constructed for that address range - but no pages.
free_vm_area releases the address space range.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ian Pratt <ian.pratt@xensource.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Cc: "Jan Beulich" <JBeulich@novell.com>
Cc: "Andi Kleen" <ak@muc.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/vmalloc.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 132b260aef1e..c2b10cae5da5 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -70,6 +70,10 @@ extern int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages); extern void unmap_kernel_range(unsigned long addr, unsigned long size); +/* Allocate/destroy a 'vmalloc' VM area. */ +extern struct vm_struct *alloc_vm_area(size_t size); +extern void free_vm_area(struct vm_struct *area); + /* * Internals. Dont't use.. */ |