io_uring: check register restriction afore quiesce
authorPavel Begunkov <asml.silence@gmail.com>
Thu, 15 Apr 2021 12:07:40 +0000 (13:07 +0100)
committerJens Axboe <axboe@kernel.dk>
Sun, 18 Apr 2021 01:20:08 +0000 (19:20 -0600)
commit75c4021aacbd9b5cc13b173d32b49007fd8ccada
tree7575ca680cb37fc4a9c503ce635422c691228298
parent38134ada0ceea3e848fe993263c0ff6207fd46e7
io_uring: check register restriction afore quiesce

Move restriction checks of __io_uring_register() before quiesce, saves
from waiting for requests in fail case and simplifies the code a bit.
Also add array_index_nospec() for safety

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/88d7913c9280ee848fdb7b584eea37a465391cee.1618488258.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/io_uring.c