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| author | Christoph Hellwig <hch@infradead.org> | 2013-11-14 14:32:06 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-05-17 09:51:33 -0700 |
| commit | 5a4d93f39c3b3bce899891d39013bfc4ef2ab85a (patch) | |
| tree | ca1fc4c662f7e53e3a2b36c6358635d1873f6cb9 /include/linux | |
| parent | cccea7f5c40ef96866d02be01e0712985940d102 (diff) | |
| download | lwn-5a4d93f39c3b3bce899891d39013bfc4ef2ab85a.tar.gz lwn-5a4d93f39c3b3bce899891d39013bfc4ef2ab85a.zip | |
revert "softirq: Add support for triggering softirq work on softirqs"
commit fc21c0cff2f425891b28ff6fb6b03b325c977428 upstream.
This commit was incomplete in that code to remove items from the per-cpu
lists was missing and never acquired a user in the 5 years it has been in
the tree. We're going to implement what it seems to try to archive in a
simpler way, and this code is in the way of doing so.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Pan Xinhui <xinhuix.pan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/interrupt.h | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 6de0f2c14ec0..f05efb1160fb 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -11,8 +11,6 @@ #include <linux/irqnr.h> #include <linux/hardirq.h> #include <linux/irqflags.h> -#include <linux/smp.h> -#include <linux/percpu.h> #include <linux/hrtimer.h> #include <linux/kref.h> #include <linux/workqueue.h> @@ -488,15 +486,6 @@ extern void __raise_softirq_irqoff(unsigned int nr); extern void raise_softirq_irqoff(unsigned int nr); extern void raise_softirq(unsigned int nr); -/* This is the worklist that queues up per-cpu softirq work. - * - * send_remote_sendirq() adds work to these lists, and - * the softirq handler itself dequeues from them. The queues - * are protected by disabling local cpu interrupts and they must - * only be accessed by the local cpu that they are for. - */ -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) @@ -504,17 +493,6 @@ 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. - */ -extern void send_remote_softirq(struct call_single_data *cp, int cpu, int softirq); - -/* Like send_remote_softirq(), but the caller must disable local cpu interrupts - * and compute the current cpu, passed in as 'this_cpu'. - */ -extern void __send_remote_softirq(struct call_single_data *cp, int cpu, - int this_cpu, int softirq); - /* Tasklets --- multithreaded analogue of BHs. Main feature differing them of generic softirqs: tasklet |