Allow the user to communicate with the tasklet through the atomic state field by assigning a bit for their use. This can be used, for example, to differentiate between a tasklet called following an irq or from process context, where some hardware state may only be valid after the irq.
Signed-off-by: Chris Wilson <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Hannes Reinecke <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Chen Fan <[email protected]> Cc: Alexander Potapenko <[email protected]> --- include/linux/interrupt.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 53144e78a369..ab321552089b 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -542,7 +542,8 @@ struct tasklet_struct name = { NULL, 0, ATOMIC_INIT(1), func, data } enum { TASKLET_STATE_SCHED, /* Tasklet is scheduled for execution */ - TASKLET_STATE_RUN /* Tasklet is running (SMP only) */ + TASKLET_STATE_RUN, /* Tasklet is running (SMP only) */ + TASKLET_STATE_USER /* Reserved for use by the owner */ }; #ifdef CONFIG_SMP -- 2.11.0
