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io_uring: clean io_req_find_next() fast check
authorPavel Begunkov <asml.silence@gmail.com>
Fri, 12 Feb 2021 18:41:16 +0000 (18:41 +0000)
committerJens Axboe <axboe@kernel.dk>
Fri, 12 Feb 2021 18:49:49 +0000 (11:49 -0700)
commitcdbff98223330cdb6c57ead1533ce066dddd61b7
tree4b5a1e81d4c10cb139c9c452dc802b0086907997tree | snapshot
parentdc0eced5d92052a84d58df03a3bc6382f64fecfacommit | diff
io_uring: clean io_req_find_next() fast check

Indirectly io_req_find_next() is called for every request, optimise the
check by testing flags as it was long before -- __io_req_find_next()
tolerates false-positives well (i.e. link==NULL), and those should be
really rare.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/io_uring.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)