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author | Jens Axboe <jens.axboe@oracle.com> | 2009-11-19 18:10:47 (GMT) |
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committer | David Howells <dhowells@redhat.com> | 2009-11-19 18:10:47 (GMT) |
commit | 6b8268b17a1ffc942bc72d7d00274e433d6b6719 (patch) | |
tree | bd293facd4b805fc05588fcaf024e964a0bb1cca /include/linux/slow-work.h | |
parent | 0160950297c08f8233c89b9f9e7dd59cfb080809 (diff) | |
download | linux-fsl-qoriq-6b8268b17a1ffc942bc72d7d00274e433d6b6719.tar.xz |
SLOW_WORK: Add delayed_slow_work support
This adds support for starting slow work with a delay, similar
to the functionality we have for workqueues.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'include/linux/slow-work.h')
-rw-r--r-- | include/linux/slow-work.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/slow-work.h b/include/linux/slow-work.h index eef2018..b245b9a 100644 --- a/include/linux/slow-work.h +++ b/include/linux/slow-work.h @@ -17,6 +17,7 @@ #ifdef CONFIG_SLOW_WORK #include <linux/sysctl.h> +#include <linux/timer.h> struct slow_work; @@ -52,10 +53,16 @@ struct slow_work { #define SLOW_WORK_ENQ_DEFERRED 2 /* item enqueue deferred */ #define SLOW_WORK_VERY_SLOW 3 /* item is very slow */ #define SLOW_WORK_CANCELLING 4 /* item is being cancelled, don't enqueue */ +#define SLOW_WORK_DELAYED 5 /* item is struct delayed_slow_work with active timer */ const struct slow_work_ops *ops; /* operations table for this item */ struct list_head link; /* link in queue */ }; +struct delayed_slow_work { + struct slow_work work; + struct timer_list timer; +}; + /** * slow_work_init - Initialise a slow work item * @work: The work item to initialise @@ -72,6 +79,20 @@ static inline void slow_work_init(struct slow_work *work, } /** + * slow_work_init - Initialise a delayed slow work item + * @work: The work item to initialise + * @ops: The operations to use to handle the slow work item + * + * Initialise a delayed slow work item. + */ +static inline void delayed_slow_work_init(struct delayed_slow_work *dwork, + const struct slow_work_ops *ops) +{ + init_timer(&dwork->timer); + slow_work_init(&dwork->work, ops); +} + +/** * vslow_work_init - Initialise a very slow work item * @work: The work item to initialise * @ops: The operations to use to handle the slow work item @@ -93,6 +114,14 @@ extern void slow_work_cancel(struct slow_work *work); extern int slow_work_register_user(struct module *owner); extern void slow_work_unregister_user(struct module *owner); +extern int delayed_slow_work_enqueue(struct delayed_slow_work *dwork, + unsigned long delay); + +static inline void delayed_slow_work_cancel(struct delayed_slow_work *dwork) +{ + slow_work_cancel(&dwork->work); +} + #ifdef CONFIG_SYSCTL extern ctl_table slow_work_sysctls[]; #endif |