summaryrefslogtreecommitdiff
path: root/include/linux/mmdebug.h
diff options
context:
space:
mode:
authorJiri Slaby <jirislaby@gmail.com>2008-06-12 13:56:40 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-19 13:31:42 +0200
commit59ea746337c69f6a5f1bc4d5e8544b3cbf12f801 (patch)
tree118c9c69eb8a2f6a22c62967ec36288153c87303 /include/linux/mmdebug.h
parent952f4a0a9b27e6dbd5d32e330b3f609ebfa0b061 (diff)
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.h18
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