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de7341ffe4
Like the local task_work list, the normal (tctx) task_work list is an llist, and hence needs the O(n) llist_reverse_order() pass before running entries in queue order. On top of that, capped runs - sqpoll processing IORING_TW_CAP_ENTRIES_VALUE entries at a time - need the claimed-but-unprocessed leftovers carried in a separate retry_list, as they can't be pushed back to the shared list. Switch tctx->task_list to a mpscq, like what was done for the DEFER_TASKRUN paths as well. Signed-off-by: Jens Axboe <axboe@kernel.dk>