mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-28 20:02:17 +00:00
b50e195ff4
Use the vma iterator in the validation code and combine the code to check the maple tree into the main validate_mm() function. Introduce a new function vma_iter_dump_tree() to dump the maple tree in hex layout. Replace all calls to validate_mm_mt() with validate_mm(). [Liam.Howlett@oracle.com: update validate_mm() to use vma iterator CONFIG flag] Link: https://lkml.kernel.org/r/20230606183538.588190-1-Liam.Howlett@oracle.com Link: https://lkml.kernel.org/r/20230518145544.1722059-18-Liam.Howlett@oracle.com Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Cc: David Binderman <dcb314@hotmail.com> Cc: Peng Zhang <zhangpeng.00@bytedance.com> Cc: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Vernon Yang <vernon2gm@gmail.com> Cc: Wei Yang <richard.weiyang@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
129 lines
3.9 KiB
C
129 lines
3.9 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;
|
|
struct vma_iterator;
|
|
|
|
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);
|
|
void vma_iter_dump_tree(const struct vma_iterator *vmi);
|
|
|
|
#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_FOLIO(cond, folio) ({ \
|
|
int __ret_warn = !!(cond); \
|
|
\
|
|
if (unlikely(__ret_warn)) { \
|
|
dump_page(&folio->page, "VM_WARN_ON_FOLIO(" __stringify(cond)")");\
|
|
WARN_ON(1); \
|
|
} \
|
|
unlikely(__ret_warn); \
|
|
})
|
|
#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_ONCE_MM(cond, mm) ({ \
|
|
static bool __section(".data.once") __warned; \
|
|
int __ret_warn_once = !!(cond); \
|
|
\
|
|
if (unlikely(__ret_warn_once && !__warned)) { \
|
|
dump_mm(mm); \
|
|
__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_FOLIO(cond, folio) BUILD_BUG_ON_INVALID(cond)
|
|
#define VM_WARN_ON_ONCE_FOLIO(cond, folio) BUILD_BUG_ON_INVALID(cond)
|
|
#define VM_WARN_ON_ONCE_MM(cond, mm) 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_VM_IRQSOFF
|
|
#define VM_WARN_ON_IRQS_ENABLED() WARN_ON_ONCE(!irqs_disabled())
|
|
#else
|
|
#define VM_WARN_ON_IRQS_ENABLED() 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
|
|
|
|
#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
|