mm/debug: Add VM_BUG_ON_FOLIO() and VM_WARN_ON_ONCE_FOLIO()

These are the folio equivalents of VM_BUG_ON_PAGE and
VM_WARN_ON_ONCE_PAGE.  No change to generated code.
Signed-off-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: default avatarZi Yan <ziy@nvidia.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Acked-by: default avatarJeff Layton <jlayton@kernel.org>
Acked-by: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: default avatarVlastimil Babka <vbabka@suse.cz>
Reviewed-by: default avatarWilliam Kucharski <william.kucharski@oracle.com>
Reviewed-by: default avatarDavid Howells <dhowells@redhat.com>
Acked-by: default avatarMike Rapoport <rppt@linux.ibm.com>
parent a53e17e4
...@@ -22,6 +22,13 @@ void dump_mm(const struct mm_struct *mm); ...@@ -22,6 +22,13 @@ void dump_mm(const struct mm_struct *mm);
BUG(); \ BUG(); \
} \ } \
} while (0) } 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) \ #define VM_BUG_ON_VMA(cond, vma) \
do { \ do { \
if (unlikely(cond)) { \ if (unlikely(cond)) { \
...@@ -47,6 +54,17 @@ void dump_mm(const struct mm_struct *mm); ...@@ -47,6 +54,17 @@ void dump_mm(const struct mm_struct *mm);
} \ } \
unlikely(__ret_warn_once); \ 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(cond) (void)WARN_ON(cond)
#define VM_WARN_ON_ONCE(cond) (void)WARN_ON_ONCE(cond) #define VM_WARN_ON_ONCE(cond) (void)WARN_ON_ONCE(cond)
...@@ -55,11 +73,13 @@ void dump_mm(const struct mm_struct *mm); ...@@ -55,11 +73,13 @@ void dump_mm(const struct mm_struct *mm);
#else #else
#define VM_BUG_ON(cond) BUILD_BUG_ON_INVALID(cond) #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_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_VMA(cond, vma) VM_BUG_ON(cond)
#define VM_BUG_ON_MM(cond, mm) 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(cond) BUILD_BUG_ON_INVALID(cond)
#define VM_WARN_ON_ONCE(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_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_ONCE(cond, format...) BUILD_BUG_ON_INVALID(cond)
#define VM_WARN(cond, format...) BUILD_BUG_ON_INVALID(cond) #define VM_WARN(cond, format...) BUILD_BUG_ON_INVALID(cond)
#endif #endif
......
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