CVS commit: src/sys/net

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Thu Sep  1 02:35:06 UTC 2022

Modified Files:
        src/sys/net: pktqueue.c

Log Message:
pktq_dequeue(): Prevent packets from getting stuck beind barrier markers.

pktq_barrier() ensures that all packets enqueued before the barrier have
been dequeued before the barrier returns.  However, previously, pktq_dequeue()
would return NULL when a barrier marker was encountered.  If there were
packets queued up behind the marker and no additional softint were scheduled
for the pktqueue, those packets would end up stranded.  pktq_dequeue() now
continues to the next slot after the marker, ensuring that processing can
continue after the barrier has been signaled.


To generate a diff of this commit:
cvs rdiff -u -r1.16 -r1.17 src/sys/net/pktqueue.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.