tls: rx: don't consider sock_rcvtimeo() cumulative
Eric indicates that restarting rcvtimeo on every wait may be fine.
I thought that we should consider it cumulative, and made
tls_rx_reader_lock() return the remaining timeo after acquiring
the reader lock.
tls_rx_rec_wait() gets its timeout passed in by value so it
does not keep track of time previously spent.
Make the lock waiting consistent with tls_rx_rec_wait() - don't
keep track of time spent.
Read the timeo fresh in tls_rx_rec_wait().
It's unclear to me why callers are supposed to cache the value.
Link: https://lore.kernel.org/all/CANn89iKcmSfWgvZjzNGbsrndmCch2HC_EPZ7qmGboDNaWoviNQ@mail.gmail.com/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
parent
86c591fb
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