tree c9cd81d9f5ddf626822d059e55f4c4691668de50
parent 250eb1f8815303f71c94a5680f8e4f2dcfa25cf5
author Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> 1460144488 -0300
committer David S. Miller <davem@davemloft.net> 1460603084 -0400

sctp: delay calls to sk_data_ready() as much as possible

Currently processing of multiple chunks in a single SCTP packet leads to
multiple calls to sk_data_ready, causing multiple wake up signals which
are costy and doesn't make it wake up any faster.

With this patch it will note that the wake up is pending and will do it
before leaving the state machine interpreter, latest place possible to
do it realiably and cleanly.

Note that sk_data_ready events are not dependent on asocs, unlike waking
up writers.

v2: series re-checked
v3: use local vars to cleanup the code, suggested by Jakub Sitnicki
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>