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softirqs: Free up pf flag PF_KSOFTIRQD

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Cleanup patch, freeing up PF_KSOFTIRQD and use per_cpu ksoftirqd pointer
instead, as suggested by Eric Dumazet.

Tested-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Venkatesh Pallipadi <venki@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1292980144-28796-2-git-send-email-venki@google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Venkatesh Pallipadi
2010-12-21 17:09:00 -08:00
committed by Ingo Molnar
parent f07333bf6e
commit 4dd53d891c
4 changed files with 9 additions and 4 deletions
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7
include/linux/interrupt.h
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@@ -426,6 +426,13 @@ extern void raise_softirq(unsigned int nr);
*/
DECLARE_PER_CPU(struct list_head [NR_SOFTIRQS], softirq_work_list);
DECLARE_PER_CPU(struct task_struct *, ksoftirqd);
static inline struct task_struct *this_cpu_ksoftirqd(void)
{
return this_cpu_read(ksoftirqd);
}
/* Try to send a softirq to a remote cpu. If this cannot be done, the
* work will be queued to the local cpu.
*/