mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-14 16:23:51 +08:00
9e9edb2094
These are the folio equivalents of VM_BUG_ON_PAGE and VM_WARN_ON_ONCE_PAGE. No change to generated code. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Zi Yan <ziy@nvidia.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Jeff Layton <jlayton@kernel.org> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: William Kucharski <william.kucharski@oracle.com> Reviewed-by: David Howells <dhowells@redhat.com> Acked-by: Mike Rapoport <rppt@linux.ibm.com>
100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef LINUX_MM_DEBUG_H
|
|
#define LINUX_MM_DEBUG_H 1
|
|
|
|
#include <linux/bug.h>
|
|
#include <linux/stringify.h>
|
|
|
|
struct page;
|
|
struct vm_area_struct;
|
|
struct mm_struct;
|
|
|
|
void dump_page(struct page *page, const char *reason);
|
|
void dump_vma(const struct vm_area_struct *vma);
|
|
void dump_mm(const struct mm_struct *mm);
|
|
|
|
#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, "VM_BUG_ON_PAGE(" __stringify(cond)")");\
|
|
BUG(); \
|
|
} \
|
|
} while (0)
|
|
#define VM_BUG_ON_FOLIO(cond, folio) \
|
|
do { \
|
|
if (unlikely(cond)) { \
|
|
dump_page(&folio->page, "VM_BUG_ON_FOLIO(" __stringify(cond)")");\
|
|
BUG(); \
|
|
} \
|
|
} while (0)
|
|
#define VM_BUG_ON_VMA(cond, vma) \
|
|
do { \
|
|
if (unlikely(cond)) { \
|
|
dump_vma(vma); \
|
|
BUG(); \
|
|
} \
|
|
} while (0)
|
|
#define VM_BUG_ON_MM(cond, mm) \
|
|
do { \
|
|
if (unlikely(cond)) { \
|
|
dump_mm(mm); \
|
|
BUG(); \
|
|
} \
|
|
} while (0)
|
|
#define VM_WARN_ON_ONCE_PAGE(cond, page) ({ \
|
|
static bool __section(".data.once") __warned; \
|
|
int __ret_warn_once = !!(cond); \
|
|
\
|
|
if (unlikely(__ret_warn_once && !__warned)) { \
|
|
dump_page(page, "VM_WARN_ON_ONCE_PAGE(" __stringify(cond)")");\
|
|
__warned = true; \
|
|
WARN_ON(1); \
|
|
} \
|
|
unlikely(__ret_warn_once); \
|
|
})
|
|
#define VM_WARN_ON_ONCE_FOLIO(cond, folio) ({ \
|
|
static bool __section(".data.once") __warned; \
|
|
int __ret_warn_once = !!(cond); \
|
|
\
|
|
if (unlikely(__ret_warn_once && !__warned)) { \
|
|
dump_page(&folio->page, "VM_WARN_ON_ONCE_FOLIO(" __stringify(cond)")");\
|
|
__warned = true; \
|
|
WARN_ON(1); \
|
|
} \
|
|
unlikely(__ret_warn_once); \
|
|
})
|
|
|
|
#define VM_WARN_ON(cond) (void)WARN_ON(cond)
|
|
#define VM_WARN_ON_ONCE(cond) (void)WARN_ON_ONCE(cond)
|
|
#define VM_WARN_ONCE(cond, format...) (void)WARN_ONCE(cond, format)
|
|
#define VM_WARN(cond, format...) (void)WARN(cond, format)
|
|
#else
|
|
#define VM_BUG_ON(cond) BUILD_BUG_ON_INVALID(cond)
|
|
#define VM_BUG_ON_PAGE(cond, page) VM_BUG_ON(cond)
|
|
#define VM_BUG_ON_FOLIO(cond, folio) VM_BUG_ON(cond)
|
|
#define VM_BUG_ON_VMA(cond, vma) VM_BUG_ON(cond)
|
|
#define VM_BUG_ON_MM(cond, mm) VM_BUG_ON(cond)
|
|
#define VM_WARN_ON(cond) BUILD_BUG_ON_INVALID(cond)
|
|
#define VM_WARN_ON_ONCE(cond) BUILD_BUG_ON_INVALID(cond)
|
|
#define VM_WARN_ON_ONCE_PAGE(cond, page) BUILD_BUG_ON_INVALID(cond)
|
|
#define VM_WARN_ON_ONCE_FOLIO(cond, folio) BUILD_BUG_ON_INVALID(cond)
|
|
#define VM_WARN_ONCE(cond, format...) BUILD_BUG_ON_INVALID(cond)
|
|
#define VM_WARN(cond, format...) BUILD_BUG_ON_INVALID(cond)
|
|
#endif
|
|
|
|
#ifdef CONFIG_DEBUG_VIRTUAL
|
|
#define VIRTUAL_BUG_ON(cond) BUG_ON(cond)
|
|
#else
|
|
#define VIRTUAL_BUG_ON(cond) do { } while (0)
|
|
#endif
|
|
|
|
#ifdef CONFIG_DEBUG_VM_PGFLAGS
|
|
#define VM_BUG_ON_PGFLAGS(cond, page) VM_BUG_ON_PAGE(cond, page)
|
|
#else
|
|
#define VM_BUG_ON_PGFLAGS(cond, page) BUILD_BUG_ON_INVALID(cond)
|
|
#endif
|
|
|
|
#endif
|