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authorDoron Roberts-Kedes <doronrk@fb.com>2018-06-06 09:33:28 -0700
committerDavid S. Miller <davem@davemloft.net>2018-06-06 14:07:53 -0400
commit7170e6045a6a8b33f4fa5753589dc77b16198e2d (patch)
treed0b3c5b6035ce9ca8ef2fbfc01964221be142441 /net/tls
parentfb1967a69f756073362b8f19347f863f227320ad (diff)
downloadlinux-7170e6045a6a8b33f4fa5753589dc77b16198e2d.tar.bz2
strparser: Add __strp_unpause and use it in ktls.
strp_unpause queues strp_work in order to parse any messages that arrived while the strparser was paused. However, the process invoking strp_unpause could eagerly parse a buffered message itself if it held the sock lock. __strp_unpause is an alternative to strp_pause that avoids the scheduling overhead that results when a receiving thread unpauses the strparser and waits for the next message to be delivered by the workqueue thread. This patch more than doubled the IOPS achieved in a benchmark of NBD traffic encrypted using ktls. Signed-off-by: Doron Roberts-Kedes <doronrk@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tls')
-rw-r--r--net/tls/tls_sw.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 839e1e165a0c..8ca57d01b18f 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -735,7 +735,7 @@ static bool tls_sw_advance_skb(struct sock *sk, struct sk_buff *skb,
/* Finished with message */
ctx->recv_pkt = NULL;
kfree_skb(skb);
- strp_unpause(&ctx->strp);
+ __strp_unpause(&ctx->strp);
return true;
}