linux/drivers/s390
Julian Wiedmann 80bc97aa0a net/af_iucv: don't track individual TX skbs for TRANS_HIPER sockets
Stop maintaining the skb_send_q list for TRANS_HIPER sockets.

Not only is it extra overhead, but keeping around a list of skb clones
means that we later also have to match the ->sk_txnotify() calls
against these clones and free them accordingly.
The current matching logic (comparing the skbs' shinfo location) is
frustratingly fragile, and breaks if the skb's head is mangled in any
sort of way while passing from dev_queue_xmit() to the device's
HW queue.

Also adjust the interface for ->sk_txnotify(), to make clear that we
don't actually care about any skb internals.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 20:36:21 -08:00
..
block s390/dasd: fix list corruption of lcu list 2020-12-17 13:41:30 -07:00
char s390/vmur: remove unused pm related functions 2020-12-02 18:19:24 +01:00
cio - Always initialize kernel stack backchain when entering the kernel, so 2020-12-18 11:08:06 -08:00
crypto s390/zcrypt: convert comma to semicolon 2020-12-16 14:55:50 +01:00
net net/af_iucv: don't track individual TX skbs for TRANS_HIPER sockets 2021-01-28 20:36:21 -08:00
scsi SCSI misc on 20201216 2020-12-16 13:34:31 -08:00
virtio s390/virtio: remove unused pm callbacks 2020-06-16 13:44:04 +02:00
Makefile s390: remove pointless drivers-y in drivers/s390/Makefile 2019-09-16 13:21:51 +02:00