perf_counter: Fix perf_copy_attr() pointer arithmetic
authorIan Schram <ischram@telenet.be>
Fri, 18 Sep 2009 19:26:26 +0000 (21:26 +0200)
committerIngo Molnar <mingo@elte.hu>
Sat, 19 Sep 2009 17:32:55 +0000 (19:32 +0200)
commitcdf8073d6b2c6c5a3cd6ce0e6c1297157f7f99ba
treec5b68d4ded3b82a934c7bd25d798b8b3870e5b25
parentec60a3fe478c0fc6d109eb5840b435ecee4d132b
perf_counter: Fix perf_copy_attr() pointer arithmetic

There is still some weird code in per_copy_attr(). Which supposedly
checks that all bytes trailing a struct are zero.

It doesn't seem to get pointer arithmetic right. Since it
increments an iterating pointer by sizeof(unsigned long) rather
than 1.

Signed-off-by: Ian Schram <ischram@telenet.be>
[ v2: clean up the messy PTR_ALIGN logic as well. ]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: <stable@kernel.org> # for v2.6.31.x
LKML-Reference: <4AB3DEE2.3030600@telenet.be>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/perf_counter.c