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| author | Tejun Heo <tj@kernel.org> | 2011-02-08 10:39:03 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2011-02-09 09:37:49 +0100 |
| commit | 4149efb22da66e326fc48baf80d628834509f7f0 (patch) | |
| tree | f55c97e3678eaff010a36b97bcde0e9d2294ccb4 | |
| parent | c534a107e8fe446202b0fab102abc015c56c0317 (diff) | |
| download | blackbird-op-linux-4149efb22da66e326fc48baf80d628834509f7f0.tar.gz blackbird-op-linux-4149efb22da66e326fc48baf80d628834509f7f0.zip | |
workqueue: add system_freezeable_wq
Add system wide freezeable workqueue.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
| -rw-r--r-- | include/linux/workqueue.h | 4 | ||||
| -rw-r--r-- | kernel/workqueue.c | 6 |
2 files changed, 9 insertions, 1 deletions
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index 1ac11586a2f5..de6a755befac 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -286,11 +286,15 @@ enum { * any specific CPU, not concurrency managed, and all queued works are * executed immediately as long as max_active limit is not reached and * resources are available. + * + * system_freezeable_wq is equivalent to system_wq except that it's + * freezeable. */ extern struct workqueue_struct *system_wq; extern struct workqueue_struct *system_long_wq; extern struct workqueue_struct *system_nrt_wq; extern struct workqueue_struct *system_unbound_wq; +extern struct workqueue_struct *system_freezeable_wq; extern struct workqueue_struct * __alloc_workqueue_key(const char *name, unsigned int flags, int max_active, diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 11869faa6819..28f8bd08f0e7 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -249,10 +249,12 @@ struct workqueue_struct *system_wq __read_mostly; struct workqueue_struct *system_long_wq __read_mostly; struct workqueue_struct *system_nrt_wq __read_mostly; struct workqueue_struct *system_unbound_wq __read_mostly; +struct workqueue_struct *system_freezeable_wq __read_mostly; EXPORT_SYMBOL_GPL(system_wq); EXPORT_SYMBOL_GPL(system_long_wq); EXPORT_SYMBOL_GPL(system_nrt_wq); EXPORT_SYMBOL_GPL(system_unbound_wq); +EXPORT_SYMBOL_GPL(system_freezeable_wq); #define CREATE_TRACE_POINTS #include <trace/events/workqueue.h> @@ -3764,8 +3766,10 @@ static int __init init_workqueues(void) system_nrt_wq = alloc_workqueue("events_nrt", WQ_NON_REENTRANT, 0); system_unbound_wq = alloc_workqueue("events_unbound", WQ_UNBOUND, WQ_UNBOUND_MAX_ACTIVE); + system_freezeable_wq = alloc_workqueue("events_freezeable", + WQ_FREEZEABLE, 0); BUG_ON(!system_wq || !system_long_wq || !system_nrt_wq || - !system_unbound_wq); + !system_unbound_wq || !system_freezeable_wq); return 0; } early_initcall(init_workqueues); |
