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authorDavidlohr Bueso <dave@stgolabs.net>2021-03-06 13:36:58 -0800
committerThomas Gleixner <tglx@linutronix.de>2021-03-16 15:06:31 +0100
commit3a0ade0c521a542f8a25e96ce8ea0dfaa532ac75 (patch)
tree62f4be43c8c30899a2274713ce356be818e32ca7 /kernel/softirq.c
parentcbe16f35bee6880becca6f20d2ebf6b457148552 (diff)
tasklet: Remove tasklet_kill_immediate
Ever since RCU was converted to softirq, it has no users. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@kernel.org> Link: https://lore.kernel.org/r/20210306213658.12862-1-dave@stgolabs.net
Diffstat (limited to 'kernel/softirq.c')
-rw-r--r--kernel/softirq.c32
1 files changed, 0 insertions, 32 deletions
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 9908ec4a9bfe..8b44ab9a2f69 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -658,38 +658,6 @@ static void run_ksoftirqd(unsigned int cpu)
}
#ifdef CONFIG_HOTPLUG_CPU
-/*
- * tasklet_kill_immediate is called to remove a tasklet which can already be
- * scheduled for execution on @cpu.
- *
- * Unlike tasklet_kill, this function removes the tasklet
- * _immediately_, even if the tasklet is in TASKLET_STATE_SCHED state.
- *
- * When this function is called, @cpu must be in the CPU_DEAD state.
- */
-void tasklet_kill_immediate(struct tasklet_struct *t, unsigned int cpu)
-{
- struct tasklet_struct **i;
-
- BUG_ON(cpu_online(cpu));
- BUG_ON(test_bit(TASKLET_STATE_RUN, &t->state));
-
- if (!test_bit(TASKLET_STATE_SCHED, &t->state))
- return;
-
- /* CPU is dead, so no lock needed. */
- for (i = &per_cpu(tasklet_vec, cpu).head; *i; i = &(*i)->next) {
- if (*i == t) {
- *i = t->next;
- /* If this was the tail element, move the tail ptr */
- if (*i == NULL)
- per_cpu(tasklet_vec, cpu).tail = i;
- return;
- }
- }
- BUG();
-}
-
static int takeover_tasklets(unsigned int cpu)
{
/* CPU is dead, so no lock needed. */