Re: [PATCH] perf_event: Make software events work again

[Peter Zijlstra]

On Sat, 2010-05-08 at 20:58 +1000, Paul Mackerras wrote:
> Commit 6bde9b6ce0127e2a56228a2071536d422be31336 ("perf: Add group
> scheduling transactional APIs") added code to allow a group to be
> scheduled in a single transaction.  However, it introduced a bug in
> handling events whose pmu does not implement transactions -- at the
> end of scheduling in the events in the group, in the non-transactional
> case the code now falls through to the group_error label, and proceeds
> to unschedule all the events in the group and return failure.
> 
> This fixes it by returning 0 (success) in the non-transactional case.

D'0h I should have spotted that :/

Thanks Paul!
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