io_uring: support deferred retrival of file from fd
authorJens Axboe <axboe@kernel.dk>
Wed, 4 Mar 2020 15:51:34 +0000 (08:51 -0700)
committerJens Axboe <axboe@kernel.dk>
Wed, 4 Mar 2020 20:11:27 +0000 (13:11 -0700)
commita141216cd154aa76752e0bdeb6c590bf641aaae7
tree53a0b1932aaad70167b3ce1c3c5a710b2fcfa40f
parenteb909d4c56169a18ddbfcddc9163eadcb2a31795
io_uring: support deferred retrival of file from fd

We might not be able to grab the file we need at prep time, if the fd
needed is dependent on completion of another request. Support deferred
fd lookup.

Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/io_uring.c