is_vmalloc_addr(): Check if an address is within the vmalloc boundaries
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>
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 1be7308..7dd26e1 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -325,7 +325,7 @@
if (m == NULL) {
if (clear_user(buffer, tsz))
return -EFAULT;
- } else if ((start >= VMALLOC_START) && (start < VMALLOC_END)) {
+ } else if (is_vmalloc_addr((void *)start)) {
char * elf_buf;
struct vm_struct *m;
unsigned long curstart = start;