io_uring: store reg buffer end instead of length
authorPavel Begunkov <asml.silence@gmail.com>
Thu, 1 Apr 2021 14:43:55 +0000 (15:43 +0100)
committerJens Axboe <axboe@kernel.dk>
Mon, 12 Apr 2021 01:30:34 +0000 (19:30 -0600)
commit4751f53d74a688137de6a2a0b12ee591288c6dc8
tree0bf50a1b190c9baf3ffbef86762a2ed0f5f06007
parent75769e3f7357171dbe040a5ed55445c2642295d1
io_uring: store reg buffer end instead of length

It's a bit more convenient for us to store a registered buffer end
address instead of length, see struct io_mapped_ubuf, as it allow to not
recompute it every time.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/39164403fe92f1dc437af134adeec2423cdf9395.1617287883.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/io_uring.c