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sched/core: Annotate perf_domain pointer with __rcu

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This fixes the following sparse errors in sched/fair.c:

  fair.c:6506:14: error: incompatible types in comparison expression
  fair.c:8642:21: error: incompatible types in comparison expression

Using __rcu will also help sparse catch any future bugs.

Signed-off-by: Joel Fernandes (Google) <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
[ From an RCU perspective. ]
Reviewed-by: Paul E. McKenney <[email protected]>
Cc: Josh Triplett <[email protected]>
Cc: Lai Jiangshan <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Luc Van Oostenryck <[email protected]>
Cc: Mathieu Desnoyers <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Morten Rasmussen <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Joel Fernandes (Google) 2019-03-20 20:34:26 -04:00 • committed by Ingo Molnar
commit 7ba7319f9e
1 changed files with 1 additions and 1 deletions
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kernel/sched/sched.h
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@ -780,7 +780,7 @@ struct root_domain {
* NULL-terminated list of performance domains intersecting with the
* CPUs of the rd. Protected by RCU.
*/
struct perf_domain *pd;
struct perf_domain __rcu *pd;
};
extern struct root_domain def_root_domain;