Merge tag 'arc-v3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
[deliverable/linux.git] / include / linux / mmdebug.h
1 #ifndef LINUX_MM_DEBUG_H
2 #define LINUX_MM_DEBUG_H 1
3
4 #include <linux/stringify.h>
5
6 struct page;
7
8 extern void dump_page(struct page *page, const char *reason);
9 extern void dump_page_badflags(struct page *page, const char *reason,
10 unsigned long badflags);
11
12 #ifdef CONFIG_DEBUG_VM
13 #define VM_BUG_ON(cond) BUG_ON(cond)
14 #define VM_BUG_ON_PAGE(cond, page) \
15 do { \
16 if (unlikely(cond)) { \
17 dump_page(page, "VM_BUG_ON_PAGE(" __stringify(cond)")");\
18 BUG(); \
19 } \
20 } while (0)
21 #define VM_WARN_ON(cond) WARN_ON(cond)
22 #define VM_WARN_ON_ONCE(cond) WARN_ON_ONCE(cond)
23 #else
24 #define VM_BUG_ON(cond) BUILD_BUG_ON_INVALID(cond)
25 #define VM_BUG_ON_PAGE(cond, page) VM_BUG_ON(cond)
26 #define VM_WARN_ON(cond) BUILD_BUG_ON_INVALID(cond)
27 #define VM_WARN_ON_ONCE(cond) BUILD_BUG_ON_INVALID(cond)
28 #endif
29
30 #ifdef CONFIG_DEBUG_VIRTUAL
31 #define VIRTUAL_BUG_ON(cond) BUG_ON(cond)
32 #else
33 #define VIRTUAL_BUG_ON(cond) do { } while (0)
34 #endif
35
36 #endif
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