Function report |
Source Code:fs\io-wq.c |
Create Date:2022-07-28 20:22:39 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:io_worker_handle_work
Proto:static void io_worker_handle_work(struct io_worker *worker)__releases(wqe->lock)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
struct io_worker * | worker |
408 | struct io_wq_work * work, * old_work = NULL, * put_work = NULL |
412 | Do |
413 | hash = -1U |
422 | work = io_get_next_work(wqe, & hash) |
423 | If work Then Worker will start processing some work. Move it to the busy list, if* it's currently on the freelist |
425 | Else if Not wq_list_empty( & work_list) Then flags |= IO_WQE_FLAG_STALLED |
428 | spin_unlock_irq( & lock) |
431 | If Not work Then Break |
433 | next : |
438 | cond_resched() |
440 | spin_lock_irq( & lock) |
442 | spin_unlock_irq( & lock) |
444 | If flags & IO_WQ_WORK_CB Then func( & work) |
447 | If flags & IO_WQ_WORK_NEEDS_FILES && files != files Then |
453 | If flags & IO_WQ_WORK_NEEDS_USER && Not mm && mm Then |
467 | If st_bit - Determine whether a bit is set*@nr: bit number to test*@addr: Address to start counting from Then flags |= IO_WQ_WORK_CANCEL |
469 | If mm Then flags |= IO_WQ_WORK_HAS_MM |
472 | If get_work && Not (flags & IO_WQ_WORK_INTERNAL) Then |
480 | spin_lock_irq( & lock) |
481 | cur_work = NULL |
482 | spin_unlock_irq( & lock) |
484 | spin_lock_irq( & lock) |
486 | If hash != -1U Then |
488 | flags &= ~IO_WQE_FLAG_STALLED |
502 | When 1 cycle |
Name | Describe |
---|---|
io_wqe_worker |
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