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| author | Sasha Levin <sasha.levin@oracle.com> | 2014-10-09 15:28:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-09 22:25:57 -0400 |
| commit | fa3759ccd5651c4235f572302d58c8ec9ddf1c4b (patch) | |
| tree | 99817626e8a972624a1d178d1595ff7a7e527827 /include/linux/mmdebug.h | |
| parent | 0bf55139782db1fa96af66e37cc84afde18443ef (diff) | |
| download | lwn-fa3759ccd5651c4235f572302d58c8ec9ddf1c4b.tar.gz lwn-fa3759ccd5651c4235f572302d58c8ec9ddf1c4b.zip | |
mm: introduce VM_BUG_ON_VMA
Very similar to VM_BUG_ON_PAGE but dumps VMA information instead.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Reviewed-by: Naoya 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mmdebug.h')
| -rw-r--r-- | include/linux/mmdebug.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/mmdebug.h b/include/linux/mmdebug.h index dfb93333fc62..569e4c8d0ebb 100644 --- a/include/linux/mmdebug.h +++ b/include/linux/mmdebug.h @@ -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) |