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authorFrederic Weisbecker <fweisbec@gmail.com>2009-07-05 01:39:18 -0400
committerIngo Molnar <mingo@elte.hu>2009-07-05 04:30:21 -0400
commitbe9038859e56f729cc9d3b070a35fb8829a73696 (patch)
treee258cec23a938ba1d1a9a38119420171c52f31c0 /kernel/groups.c
parent91b4eaea93f5be95f4477554399680a53aff2343 (diff)
perf report: Use a modifiable string for default callchain options
If the user doesn't provide options to tune his callchain output (ie: if he uses -c without arguments) then the default value passed in the OPT_CALLBACK_DEFAULT() macro is used. But it's parsed later by strtok() which will replace comma separators to a zero. This may segfault as we are using a read-only string. Use a modifiable one instead, and also fix the "100%" default minimum threshold value by turning it into a 0 (output every callchains) as it was intended in the origin. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Anton Blanchard <anton@samba.org> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1246772361-9960-2-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/groups.c')
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