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Commit fa3759cc authored by Sasha Levin's avatar Sasha Levin Committed by Linus Torvalds
Browse files

mm: introduce VM_BUG_ON_VMA 



Very similar to VM_BUG_ON_PAGE but dumps VMA information instead.

Signed-off-by: default avatarSasha Levin <sasha.levin@oracle.com>
Reviewed-by: default avatarNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Michel Lespinasse <walken@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 0bf55139

include/linux/mmdebug.h

+8 −0
Original line number Diff line number Diff line
@@ -20,12 +20,20 @@ void dump_vma(const struct vm_area_struct *vma); 
			BUG();						\

		}							\

	} while (0)

#define VM_BUG_ON_VMA(cond, vma)					\

	do {								\

		if (unlikely(cond)) {					\

			dump_vma(vma);					\

			BUG();						\

		}							\

	} while (0)

#define VM_WARN_ON(cond) WARN_ON(cond)

#define VM_WARN_ON_ONCE(cond) WARN_ON_ONCE(cond)

#define VM_WARN_ONCE(cond, format...) WARN_ONCE(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_VMA(cond, vma) 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_ONCE(cond, format...) BUILD_BUG_ON_INVALID(cond)