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| author | Doron Roberts-Kedes <doronrk@fb.com> | 2018-06-06 09:33:28 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-06-06 14:07:53 -0400 |
| commit | 7170e6045a6a8b33f4fa5753589dc77b16198e2d (patch) | |
| tree | d0b3c5b6035ce9ca8ef2fbfc01964221be142441 /include/net | |
| parent | fb1967a69f756073362b8f19347f863f227320ad (diff) | |
| download | op-kernel-dev-7170e6045a6a8b33f4fa5753589dc77b16198e2d.zip op-kernel-dev-7170e6045a6a8b33f4fa5753589dc77b16198e2d.tar.gz | |
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 'include/net')
| -rw-r--r-- | include/net/strparser.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/strparser.h b/include/net/strparser.h index d96b59f..f177c87 100644 --- a/include/net/strparser.h +++ b/include/net/strparser.h @@ -90,6 +90,8 @@ static inline void strp_pause(struct strparser *strp) /* May be called without holding lock for attached socket */ void strp_unpause(struct strparser *strp); +/* Must be called with process lock held (lock_sock) */ +void __strp_unpause(struct strparser *strp); static inline void save_strp_stats(struct strparser *strp, struct strp_aggr_stats *agg_stats) |
