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| author | Muchun Song <smuchun@gmail.com> | 2019-06-18 22:33:05 +0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-06-23 18:14:27 +0200 |
| commit | 8afecaa68df1e94a9d634f1f961533a925f239fc (patch) | |
| tree | cbf3f154c599e41cca84efda432b8db3f8137959 /kernel/softirq.c | |
| parent | 0e51833042fccfe882ef3e85a346252550d26c22 (diff) | |
| download | linux-stable-8afecaa68df1e94a9d634f1f961533a925f239fc.tar.gz linux-stable-8afecaa68df1e94a9d634f1f961533a925f239fc.tar.bz2 linux-stable-8afecaa68df1e94a9d634f1f961533a925f239fc.zip | |
softirq: Use __this_cpu_write() in takeover_tasklets()
The code is executed with interrupts disabled, so it's safe to use
__this_cpu_write().
[ tglx: Massaged changelog ]
Signed-off-by: Muchun Song <smuchun@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: joel@joelfernandes.org
Cc: rostedt@goodmis.org
Cc: frederic@kernel.org
Cc: paulmck@linux.vnet.ibm.com
Cc: alexander.levin@verizon.com
Cc: peterz@infradead.org
Link: https://lkml.kernel.org/r/20190618143305.2038-1-smuchun@gmail.com
Diffstat (limited to 'kernel/softirq.c')
| -rw-r--r-- | kernel/softirq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/softirq.c b/kernel/softirq.c index 2c3382378d94..eaf3bdf7c749 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -650,7 +650,7 @@ static int takeover_tasklets(unsigned int cpu) /* Find end, append list for that CPU. */ if (&per_cpu(tasklet_vec, cpu).head != per_cpu(tasklet_vec, cpu).tail) { *__this_cpu_read(tasklet_vec.tail) = per_cpu(tasklet_vec, cpu).head; - this_cpu_write(tasklet_vec.tail, per_cpu(tasklet_vec, cpu).tail); + __this_cpu_write(tasklet_vec.tail, per_cpu(tasklet_vec, cpu).tail); per_cpu(tasklet_vec, cpu).head = NULL; per_cpu(tasklet_vec, cpu).tail = &per_cpu(tasklet_vec, cpu).head; } |