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(parent: c5dab09) | patch
tun: honor IOCB_NOWAIT flag
authorJens Axboe <axboe@kernel.dk>
Fri, 20 Nov 2020 14:59:54 +0000 (07:59 -0700)
committerJakub Kicinski <kuba@kernel.org>
Sat, 21 Nov 2020 23:19:08 +0000 (15:19 -0800)
commit5aac0390a63b8718237a61dd0d24a29201d1c94a
tree9b8e18b051dca28b2a2c5796f83f5990faa3018ftree | snapshot
parentc5dab0941fcdc9664eb0ec0d4d51433216d91336commit | diff
tun: honor IOCB_NOWAIT flag

tun only checks the file O_NONBLOCK flag, but it should also be checking
the iocb IOCB_NOWAIT flag. Any fops using ->read/write_iter() should check
both, otherwise it breaks users that correctly expect O_NONBLOCK semantics
if IOCB_NOWAIT is set.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/e9451860-96cc-c7c7-47b8-fe42cadd5f4c@kernel.dk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/net/tun.c diff | blob | history
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