linux-stable.git/net/sctp/ulpqueue.c, branch v5.2

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 104

2019-05-24T15:39:00+00:00

Based on 1 normalized pattern(s):

  this sctp implementation is free software you can redistribute it
  and or modify it under the terms of the gnu general public license
  as published by the free software foundation either version 2 or at
  your option any later version this sctp implementation is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with gnu cc see the file copying if not see
  http www gnu org licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 42 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Kate Stewart 
Reviewed-by: Richard Fontana 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190523091649.683323110@linutronix.de
Signed-off-by: Greg Kroah-Hartman

sctp: implement memory accounting on rx path

2019-04-15T20:36:51+00:00

sk_forward_alloc's updating is also done on rx path, but to be consistent
we change to use sk_mem_charge() in sctp_skb_set_owner_r().

In sctp_eat_data(), it's not enough to check sctp_memory_pressure only,
which doesn't work for mem_cgroup_sockets_enabled, so we change to use
sk_under_memory_pressure().

When it's under memory pressure, sk_mem_reclaim() and sk_rmem_schedule()
should be called on both RENEGE or CHUNK DELIVERY path exit the memory
pressure status as soon as possible.

Note that sk_rmem_schedule() is using datalen to make things easy there.

Reported-by: Matteo Croce 
Tested-by: Matteo Croce 
Acked-by: Neil Horman 
Acked-by: Marcelo Ricardo Leitner 
Signed-off-by: Xin Long 
Signed-off-by: David S. Miller

sctp: Pass sk_buff_head explicitly to sctp_ulpq_tail_event().

2019-04-12T04:33:31+00:00

Now the SKB list implementation assumption can be removed.

And now that we know that the list head is always non-NULL
we can remove the code blocks dealing with that as well.

Signed-off-by: David S. Miller 
Acked-by: Marcelo Ricardo Leitner 
Signed-off-by: David S. Miller

sctp: Make sctp_enqueue_event tak an skb list.

2019-04-12T04:33:31+00:00

Pass this, instead of an event.  Then everything trickles down and we
always have events a non-empty list.

Then we needs a list creating stub to place into .enqueue_event for sctp_stream_interleave_1.

Signed-off-by: David S. Miller 
Acked-by: Marcelo Ricardo Leitner 
Signed-off-by: David S. Miller

sctp: Always pass skbs on a list to sctp_ulpq_tail_event().

2019-04-12T04:33:31+00:00

This way we can simplify the logic and remove assumptions
about the implementation of skb lists.

Signed-off-by: David S. Miller 
Acked-by: Marcelo Ricardo Leitner 
Signed-off-by: David S. Miller

sctp: Remove superfluous test in sctp_ulpq_reasm_drain().

2019-04-12T04:33:31+00:00

Inside the loop, we always start with event non-NULL.

Signed-off-by: David S. Miller 
Acked-by: Marcelo Ricardo Leitner 
Signed-off-by: David S. Miller

sctp: add subscribe per asoc

2018-11-19T20:25:43+00:00

The member subscribe should be per asoc, so that sockopt SCTP_EVENT
in the next patch can subscribe a event from one asoc only.

Signed-off-by: Xin Long 
Signed-off-by: David S. Miller

sctp: define subscribe in sctp_sock as __u16

2018-11-19T20:25:43+00:00

The member subscribe in sctp_sock is used to indicate to which of
the events it is subscribed, more like a group of flags. So it's
better to be defined as __u16 (2 bytpes), instead of struct
sctp_event_subscribe (13 bytes).

Note that sctp_event_subscribe is an UAPI struct, used on sockopt
calls, and thus it will not be removed. This patch only changes
the internal storage of the flags.

Signed-off-by: Xin Long 
Signed-off-by: David S. Miller

sctp: Use skb_queue_is_first().

2018-09-10T17:06:53+00:00

Instead of direct skb_queue_head pointer accesses.

Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2017-12-22T16:16:31+00:00

Lots of overlapping changes.  Also on the net-next side
the XDP state management is handled more in the generic
layers so undo the 'net' nfp fix which isn't applicable
in net-next.

Include a necessary change by Jakub Kicinski, with log message:

====================
cls_bpf no longer takes care of offload tracking.  Make sure
netdevsim performs necessary checks.  This fixes a warning
caused by TC trying to remove a filter it has not added.

Signed-off-by: Jakub Kicinski 
Reviewed-by: Quentin Monnet 
====================

Signed-off-by: David S. Miller