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authorFrederic Weisbecker <fweisbec@gmail.com>2009-06-05 19:31:01 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-05 20:42:53 +0200
commit2f335a02b3c816e77e7df1d15b12e3bbb8f4c8f0 (patch)
tree2e4bd6040936f5ac8964f8034918c653d36dd53f /arch/sparc/include/asm/lmb.h
parent1dba15e74aba5a90c1f2557f37e5d09f8a2df643 (diff)
perf top: Fix zero or negative refresh delay
If perf top is executed with a zero value for the refresh rate, we get a division by zero exception while computing samples_per_sec. Also a zero refresh rate is not possible, neither do we want to accept negative values. [ Impact: fix division by zero in perf top ] Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1244223061-5399-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sparc/include/asm/lmb.h')
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