include/block/aio.h

115  * nested aio_bh_poll() calls process all scheduled bottom halves.
151      * If this field is 0, everything (file descriptors, bottom halves,
181     /* Bottom Halves pending aio_bh_poll() processing */
261  * They also provide bottom halves, a service to execute a piece of code
283  * aio_bh_schedule_oneshot_full: Allocate a new bottom half structure that will
292  * aio_bh_schedule_oneshot: Allocate a new bottom half structure that will run
302  * aio_bh_new_full: Allocate a new bottom half structure.
304  * Bottom halves are lightweight callbacks whose invocation is guaranteed
316  * aio_bh_new: Allocate a new bottom half structure
325  * aio_bh_new_guarded: Allocate a new bottom half structure with a
345  * a bottom half calls it already.
358  * be done before processing all events (file descriptors, bottom halves,
373  * aio_bh_poll: Poll bottom halves for an AioContext.
382  * qemu_bh_schedule: Schedule a bottom half.
384  * Scheduling a bottom half interrupts the main loop and causes the
387  * Bottom halves that are scheduled from a bottom half handler are instantly
388  * invoked.  This can create an infinite loop if a bottom half handler
391  * @bh: The bottom half to be scheduled.
396  * qemu_bh_cancel: Cancel execution of a bottom half.
398  * Canceling execution of a bottom half undoes the effect of calls to
401  * loop that executes bottom halves unless you are holding the iothread
404  * @bh: The bottom half to be canceled.
409  *qemu_bh_delete: Cancel execution of a bottom half and free its resources.
411  * Deleting a bottom half frees the memory that was allocated for it by
412  * qemu_bh_new.  It also implies canceling the bottom half if it was
414  * This func is async. The bottom half will do the delete action at the finial
417  * @bh: The bottom half to be deleted.
444  * Return whether any progress was made by executing AIO or bottom half
448  * If there are no pending bottom halves, but there are pending AIO