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is_vmalloc_addr(): Check if an address is within the vmalloc boundaries

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Checking if an address is a vmalloc address is done in a couple of places.
Define a common version in mm.h and replace the other checks.

Again the include structures suck.  The definition of VMALLOC_START and
VMALLOC_END is not available in vmalloc.h since highmem.c cannot be included
there.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Lameter
2008-02-04 22:28:34 -08:00
committed by Linus Torvalds
parent 0b7a96114b
commit 9e2779fa28
7 changed files with 14 additions and 19 deletions
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3
fs/xfs/linux-2.6/kmem.c
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@@ -92,8 +92,7 @@ kmem_zalloc_greedy(size_t *size, size_t minsize, size_t maxsize,
void
kmem_free(void *ptr, size_t size)
{
if (((unsigned long)ptr < VMALLOC_START) ||
((unsigned long)ptr >= VMALLOC_END)) {
if (!is_vmalloc_addr(ptr)) {
kfree(ptr);
} else {
vfree(ptr);