linux - linux

	Commit message (Collapse)	Author	Age	Files	Lines
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*	io_uring: pass hash table into poll_find	Pavel Begunkov	2022-07-25	1	-6/+14
\| \| \| \| \| \| \| \| \| \|	In preparation for having multiple cancellation hash tables, pass a table pointer into io_poll_find() and other poll cancel functions. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/a31c88502463dce09254240fa037352927d7ecc3.1655371007.git.asml.silence@gmail.com Reviewed-by: Hao Xu <howeyxu@tencent.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
*	io_uring: use state completion infra for poll reqs	Pavel Begunkov	2022-07-25	1	-6/+2
\| \| \| \| \| \| \| \| \| \|	Use io_req_task_complete() for poll request completions, so it can utilise state completions and save lots of unnecessary locking. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/ced94cb5a728d8e386c640d052fd3da3f5d6891a.1655371007.git.asml.silence@gmail.com Reviewed-by: Hao Xu <howeyxu@tencent.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
*	io_uring: pass poll_find lock back	Pavel Begunkov	2022-07-25	1	-20/+26
\| \| \| \| \| \| \| \| \| \| \|	Instead of using implicit knowledge of what is locked or not after io_poll_find() and co returns, pass back a pointer to the locked bucket if any. If set the user must to unlock the spinlock. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/dae1dc5749aa34367812ecf62f82fd3f053aae44.1655371007.git.asml.silence@gmail.com Reviewed-by: Hao Xu <howeyxu@tencent.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
*	io_uring: switch cancel_hash to use per entry spinlock	Hao Xu	2022-07-25	1	-31/+49
\| \| \| \| \| \| \| \| \| \| \| \|	Add a new io_hash_bucket structure so that each bucket in cancel_hash has separate spinlock. Use per entry lock for cancel_hash, this removes some completion lock invocation and remove contension between different cancel_hash entries. Signed-off-by: Hao Xu <howeyxu@tencent.com> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/05d1e135b0c8bce9d1441e6346776589e5783e26.1655371007.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
*	io_uring: poll: remove unnecessary req->ref set	Hao Xu	2022-07-25	1	-1/+0
\| \| \| \| \| \| \| \| \| \|	We now don't need to set req->refcount for poll requests since the reworked poll code ensures no request release race. Signed-off-by: Hao Xu <howeyxu@tencent.com> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/ec6fee45705890bdb968b0c175519242753c0215.1655371007.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
*	io_uring: add support for level triggered poll	Jens Axboe	2022-07-25	1	-5/+10
\| \| \| \| \| \| \| \| \| \| \|	By default, the POLL_ADD command does edge triggered poll - if we get a non-zero mask on the initial poll attempt, we complete the request successfully. Support level triggered by always waiting for a notification, regardless of whether or not the initial mask matches the file state. Signed-off-by: Jens Axboe <axboe@kernel.dk>
*	io_uring: split provided buffers handling into its own file	Jens Axboe	2022-07-25	1	-0/+1
\| \| \| \| \| \| \|	Move both the opcodes related to it, and the internals code dealing with it. Signed-off-by: Jens Axboe <axboe@kernel.dk>
*	io_uring: move poll handling into its own file	Jens Axboe	2022-07-25	1	-0/+760
	Add a io_poll_issue() rather than export the general task_work locking and io_issue_sqe(), and put the io_op_defs definition and structure into a separate header file so that poll can use it. Signed-off-by: Jens Axboe <axboe@kernel.dk>