Re: [PATCH v2 4/4] sched/numa: Convert sched_numa_balancing to a static_branch

From: Wanpeng Li
Date: Sun Sep 06 2015 - 00:06:27 EST


Hi Srikar,
On 8/12/15 12:24 AM, Srikar Dronamraju wrote:
Variable sched_numa_balancing toggles numa_balancing feature. Hence
moving from a simple read mostly variable to a more apt static_branch.

Suggested-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Signed-off-by: Srikar Dronamraju <srikar@xxxxxxxxxxxxxxxxxx>

This commit breaks Peter's queue:

kernel/sched/fair.c: In function ‘task_numa_fault’:
kernel/sched/fair.c:2072: error: implicit declaration of function ‘static_branch_likely’
kernel/sched/fair.c: In function ‘task_tick_fair’:
kernel/sched/fair.c:7867: error: implicit declaration of function ‘static_branch_unlikely’
make[1]: *** [kernel/sched/fair.o] Error 1
make[1]: *** Waiting for unfinished jobs....
kernel/sched/core.c:2116: warning: data definition has no type or storage class
kernel/sched/core.c:2116: error: type defaults to ‘int’ in declaration of ‘DEFINE_STATIC_KEY_FALSE’
kernel/sched/core.c:2116: warning: parameter names (without types) in function declaration
kernel/sched/core.c: In function ‘set_numabalancing_state’:
kernel/sched/core.c:2123: error: implicit declaration of function ‘static_branch_enable’
kernel/sched/core.c:2125: error: implicit declaration of function ‘static_branch_disable’
kernel/sched/core.c: In function ‘sysctl_numa_balancing’:
kernel/sched/core.c:2134: error: implicit declaration of function ‘static_branch_likely’
make[1]: *** [kernel/sched/core.o] Error 1
make: *** [kernel/sched/] Error 2

Regards,
Wanpeng Li
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