Module: xenomai-jki Branch: queues/proc Commit: 7c83671ed4e6aaaf71b1b0dd7ee483e083a652a8 URL: http://git.xenomai.org/?p=xenomai-jki.git;a=commit;h=7c83671ed4e6aaaf71b1b0dd7ee483e083a652a8
Author: Jan Kiszka <jan.kis...@siemens.com> Date: Tue Apr 6 08:23:34 2010 +0200 Add legacy kernel support for delayed_work Note that the kernel 2.4 version of schedule_delayed_work is not universally usable. Signed-off-by: Jan Kiszka <jan.kis...@siemens.com> --- include/asm-generic/wrappers.h | 3 +++ include/compat/linux/workqueue.h | 13 +++++++++++++ 2 files changed, 16 insertions(+), 0 deletions(-) diff --git a/include/asm-generic/wrappers.h b/include/asm-generic/wrappers.h index d864397..7513781 100644 --- a/include/asm-generic/wrappers.h +++ b/include/asm-generic/wrappers.h @@ -192,6 +192,7 @@ do { \ #define DECLARE_WORK(n,f,d) struct tq_struct n = __WORK_INITIALIZER(n, f, d) #define DECLARE_WORK_NODATA(n, f) DECLARE_WORK(n, f, NULL) #define DECLARE_WORK_FUNC(f) void f(void *cookie) +#define DECLARE_DELAYED_WORK_NODATA(n, f) DECLARE_WORK(n, f, NULL) /* Msleep is unknown before 2.4.28 */ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,28) @@ -436,9 +437,11 @@ unsigned long find_next_bit(const unsigned long *addr, #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20) #define DECLARE_WORK_NODATA(f, n) DECLARE_WORK(f, n, NULL) #define DECLARE_WORK_FUNC(f) void f(void *cookie) +#define DECLARE_DELAYED_WORK_NODATA(n, f) DECLARE_DELAYED_WORK(n, f, NULL) #else /* >= 2.6.20 */ #define DECLARE_WORK_NODATA(f, n) DECLARE_WORK(f, n) #define DECLARE_WORK_FUNC(f) void f(struct work_struct *work) +#define DECLARE_DELAYED_WORK_NODATA(n, f) DECLARE_DELAYED_WORK(n, f) #endif /* >= 2.6.20 */ #endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) */ diff --git a/include/compat/linux/workqueue.h b/include/compat/linux/workqueue.h index 3ac37aa..6fad03c 100644 --- a/include/compat/linux/workqueue.h +++ b/include/compat/linux/workqueue.h @@ -28,4 +28,17 @@ #define schedule_work(x) schedule_task(x) #define flush_scheduled_work() flush_scheduled_tasks() +/* + * WARNING: This is not identical to 2.6 schedule_delayed_work as it delayes + * the caller to schedule the task after the specified delay. That's fine for + * our current use cases, though. + */ +#define schedule_delayed_work(work, delay) do { \ + if (delay) { \ + set_current_state(TASK_UNINTERRUPTIBLE); \ + schedule_timeout(delay); \ + } \ + schedule_task(work); \ +} while (0) + #endif /* _XENO_COMPAT_LINUX_WORKQUEUE_H */ _______________________________________________ Xenomai-git mailing list Xenomai-git@gna.org https://mail.gna.org/listinfo/xenomai-git