Commit 7ba89d2a authored by Jens Axboe's avatar Jens Axboe
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io_uring: ensure recv and recvmsg handle MSG_WAITALL correctly 



We currently don't attempt to get the full asked for length even if
MSG_WAITALL is set, if we get a partial receive. If we do see a partial
receive, then just note how many bytes we did and return -EAGAIN to
get it retried.

The iov is advanced appropriately for the vector based case, and we
manually bump the buffer and remainder for the non-vector case.

Cc: stable@vger.kernel.org
Reported-by: default avatarConstantine Gavrilov <constantine.gavrilov@gmail.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 4d55f238
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