Commit a47b255e authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

io_uring: add custom opcode hooks on fail 



Sometimes we have to do a little bit of a fixup on a request failuer in
io_req_complete_failed(). Add a callback in opdef for that.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/b734cff4e67cb30cca976b9face321023f37549a.1663668091.git.asml.silence@gmail.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 3b8fdd1d

io_uring/io_uring.c

+4 −0
Original line number Diff line number Diff line
@@ -865,8 +865,12 @@ inline void __io_req_complete(struct io_kiocb *req, unsigned issue_flags) 


void io_req_complete_failed(struct io_kiocb *req, s32 res)

{

	const struct io_op_def *def = &io_op_defs[req->opcode];



	req_set_fail(req);

	io_req_set_res(req, res, io_put_kbuf(req, IO_URING_F_UNLOCKED));

	if (def->fail)

		def->fail(req);

	io_req_complete_post(req);

}

io_uring/opdef.h

+1 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ struct io_op_def { 
	int (*issue)(struct io_kiocb *, unsigned int);

	int (*prep_async)(struct io_kiocb *);

	void (*cleanup)(struct io_kiocb *);

	void (*fail)(struct io_kiocb *);

};



extern const struct io_op_def io_op_defs[];