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CANCEL_WORK_SYNC(9) Driver Basics CANCEL_WORK_SYNC(9)

NAME

cancel_work_sync - cancel a work and wait for it to finish

SYNOPSIS

bool cancel_work_sync(struct work_struct * work);

ARGUMENTS

work
the work to cancel

DESCRIPTION

Cancel work and wait for its execution to finish. This function can be used even if the work re-queues itself or migrates to another workqueue. On return from this function, work is guaranteed to be not pending or executing on any CPU.
cancel_work_sync(delayed_work->work) must not be used for delayed_work's. Use cancel_delayed_work_sync instead.
The caller must ensure that the workqueue on which work was last queued can't be destroyed before this function returns.

RETURN

 
true if work was pending, false otherwise.

COPYRIGHT

February 2017 Kernel Hackers Manual 3.16