Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
objpool: rework objpool_pop()
The function has to track number of iterations to prevent an infinite
loop. for_each_cpu_wrap() macro takes care of it, which simplifies user
code.
Signed-off-by: Yury Norov <yury.norov@gmail.com>
+3
-4
+3
-4
include/linux/objpool.h
+3
-4
include/linux/objpool.h
···
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{
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void *obj = NULL;
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unsigned long flags;
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-
int i, cpu;
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+
int start, cpu;
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/* disable local irq to avoid preemption & interruption */
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raw_local_irq_save(flags);
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-
cpu = raw_smp_processor_id();
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-
for (i = 0; i < pool->nr_possible_cpus; i++) {
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+
start = raw_smp_processor_id();
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+
for_each_possible_cpu_wrap(cpu, start) {
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obj = __objpool_try_get_slot(pool, cpu);
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if (obj)
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break;
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-
cpu = cpumask_next_wrap(cpu, cpu_possible_mask, -1, 1);
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}
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raw_local_irq_restore(flags);
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