mm/vmstat.c: assert that vmstat_text is in sync with stat_items_size
authorJann Horn <jannh@google.com>
Fri, 26 Oct 2018 22:09:05 +0000 (15:09 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 26 Oct 2018 23:26:35 +0000 (16:26 -0700)
commitf0ecf25a093fc0589f0a6bc4c1ea068bbb67d220
treec4e24a9159ff065e6f9cafe95743610ebd7f2d1b
parentff09d7ec9786be4ad7589aa987d7dc66e2dd9160
mm/vmstat.c: assert that vmstat_text is in sync with stat_items_size

Having two gigantic arrays that must manually be kept in sync, including
ifdefs, isn't exactly robust.  To make it easier to catch such issues in
the future, add a BUILD_BUG_ON().

Link: http://lkml.kernel.org/r/20181001143138.95119-3-jannh@google.com
Signed-off-by: Jann Horn <jannh@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Roman Gushchin <guro@fb.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Kemi Wang <kemi.wang@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/vmstat.c