Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: I.1 - System calls - ioctl | Date | Thu, 30 Jul 2009 18:40:50 +0200 |
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On Thursday 30 July 2009, stephane eranian wrote: > long sys_perf_counter_open( > struct perf_counter_attr *attr, > enum perf_target_type target_type, > int target_id, > int group_fd, > unsigned long flags); > > Which is what you had, except without the struct. > > Then, it boils down to whether expressing a target id in 32 bits is enough. > Obviously, 64-bit would be the safest but then I understand this causes issues > on 32-bit systems.
Just make it an unsigned long then, that still covers all cases where you only need the 64-bit type on 64-bit systems.
Arnd <><
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