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| author | Qian Cai <cai@lca.pw> | 2019-09-17 10:34:54 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-09-18 12:38:17 +0200 |
| commit | 42fd8baab31f53bed2952485fcf0e92f244c5e55 (patch) | |
| tree | 0991daeeb794da8387775c99c9f91e2caef71621 | |
| parent | dac9f027b1096c5f03ca583e787aac0f852e8f78 (diff) | |
| download | linux-stable-42fd8baab31f53bed2952485fcf0e92f244c5e55.tar.gz linux-stable-42fd8baab31f53bed2952485fcf0e92f244c5e55.tar.bz2 linux-stable-42fd8baab31f53bed2952485fcf0e92f244c5e55.zip | |
sched/core: Convert vcpu_is_preempted() from macro to an inline function
Clang reports this warning:
kernel/locking/osq_lock.c:25:19: warning: unused function 'node_cpu' [-Wunused-function]
due to osq_lock() calling vcpu_is_preempted(node_cpu(node->prev))), but
vcpu_is_preempted() is compiled away. Fix it by converting the dummy
vcpu_is_preempted() from a macro to a proper static inline function.
Signed-off-by: Qian Cai <cai@lca.pw>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bsegall@google.com
Cc: dietmar.eggemann@arm.com
Cc: juri.lelli@redhat.com
Cc: rostedt@goodmis.org
Cc: vincent.guittot@linaro.org
Link: https://lkml.kernel.org/r/1568730894-10483-1-git-send-email-cai@lca.pw
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | include/linux/sched.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index f0edee94834a..e2e91960d79f 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1856,7 +1856,10 @@ static inline void set_task_cpu(struct task_struct *p, unsigned int cpu) * running or not. */ #ifndef vcpu_is_preempted -# define vcpu_is_preempted(cpu) false +static inline bool vcpu_is_preempted(int cpu) +{ + return false; +} #endif extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask); |