io_uring: check register restriction afore quiesce

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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>

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Pavel Begunkov 2021-04-15 13:07:40 +01:00 • committed by Jens Axboe

parent 38134ada0c

commit 75c4021aac

1 changed files with 8 additions and 13 deletions

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fs/io_uring.c

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