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| author |   Jiri Slaby <jirislaby@gmail.com> | 2008-06-12 13:56:40 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-06-19 13:31:42 +0200 |
| commit | 59ea746337c69f6a5f1bc4d5e8544b3cbf12f801 (patch) | |
| tree | 118c9c69eb8a2f6a22c62967ec36288153c87303 /include/linux/mmdebug.h | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input (diff) | |
| download | wireguard-linux-59ea746337c69f6a5f1bc4d5e8544b3cbf12f801.tar.xz wireguard-linux-59ea746337c69f6a5f1bc4d5e8544b3cbf12f801.zip | |
MM: virtual address debug
Add some (configurable) expensive sanity checking to catch wrong address
translations on x86.
- create linux/mmdebug.h file to be able include this file in
asm headers to not get unsolvable loops in header files
- __phys_addr on x86_32 became a function in ioremap.c since
PAGE_OFFSET, is_vmalloc_addr and VMALLOC_* non-constasts are undefined
if declared in page_32.h
- add __phys_addr_const for initializing doublefault_tss.__cr3
Tested on 386, 386pae, x86_64 and x86_64 numa=fake=2.
Contains Andi's enable numa virtual address debug patch.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/mmdebug.h')
| -rw-r--r-- | include/linux/mmdebug.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/mmdebug.h b/include/linux/mmdebug.h new file mode 100644 index 000000000000..860ed1a71bbe --- /dev/null +++ b/include/linux/mmdebug.h @@ -0,0 +1,18 @@ +#ifndef LINUX_MM_DEBUG_H +#define LINUX_MM_DEBUG_H 1 + +#include <linux/autoconf.h> + +#ifdef CONFIG_DEBUG_VM +#define VM_BUG_ON(cond) BUG_ON(cond) +#else +#define VM_BUG_ON(cond) do { } while(0) +#endif + +#ifdef CONFIG_DEBUG_VIRTUAL +#define VIRTUAL_BUG_ON(cond) BUG_ON(cond) +#else +#define VIRTUAL_BUG_ON(cond) do { } while(0) +#endif + +#endif |