[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] make perfc_valuea actually return the value it reads
The perfc_valuea macro was effectively a no-op. This trivial patch makes it return the value it reads. Make perfc_valuea actually return the value it reads. Signed-off-by: David Lively <dlively@xxxxxxxxxxxxxxx> diff -r ac4a961f7e64 xen/include/xen/perfc.h --- a/xen/include/xen/perfc.h Thu May 25 22:57:44 2006 +0100 +++ b/xen/include/xen/perfc.h Fri May 26 11:10:33 2006 -0400 @@ -56,10 +56,8 @@ extern struct perfcounter perfcounters; #define perfc_value(x) atomic_read(&perfcounters.x[0]) #define perfc_valuec(x) atomic_read(&perfcounters.x[smp_processor_id()]) #define perfc_valuea(x,y) \ - do { \ - if ( (y) < (sizeof(perfcounters.x) / sizeof(*perfcounters.x)) ) \ - atomic_read(&perfcounters.x[y]); \ - } while ( 0 ) + ( (y) < (sizeof(perfcounters.x) / sizeof(*perfcounters.x)) ? \ + atomic_read(&perfcounters.x[y]) : 0 ) #define perfc_set(x,v) atomic_set(&perfcounters.x[0], v) #define perfc_setc(x,v) atomic_set(&perfcounters.x[smp_processor_id()], v) #define perfc_seta(x,y,v) \ _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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