OpenCloudOS-Kernel/include/linux/mmdebug.h

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#ifndef LINUX_MM_DEBUG_H
#define LINUX_MM_DEBUG_H 1
struct page;
extern void dump_page(struct page *page, const char *reason);
extern void dump_page_badflags(struct page *page, const char *reason,
unsigned long badflags);
#ifdef CONFIG_DEBUG_VM
#define VM_BUG_ON(cond) BUG_ON(cond)
#define VM_BUG_ON_PAGE(cond, page) \
do { if (unlikely(cond)) { dump_page(page, NULL); BUG(); } } while (0)
#else
#define VM_BUG_ON(cond) BUILD_BUG_ON_INVALID(cond)
#define VM_BUG_ON_PAGE(cond, page) VM_BUG_ON(cond)
#endif
#ifdef CONFIG_DEBUG_VIRTUAL
#define VIRTUAL_BUG_ON(cond) BUG_ON(cond)
#else
#define VIRTUAL_BUG_ON(cond) do { } while (0)
#endif
#endif