[Cluster-devel] [PATCH RESEND dlm-next 0/2] fs: dlm: add support to set skb mark value

[Alexander Aring <aahringo@redhat.com>]

Hi,

this patch series adds support for setting the skb mark value as socket
option. It's not possible yet to change this after the socket is
created, although the mark value can be changed afterwards.

How to test it:

1. Setup mark values

echo 0xcafe > /sys/kernel/config/dlm/cluster/mark
echo 0xbeef > /sys/kernel/config/dlm/cluster/comms/2/mark

Note: setting a mark value for local node has no effect.

2. Add some skb mark classifier:

tc qdisc add dev $DEV root handle 1: htb
tc filter add dev $DEV parent 1: u32 match mark 0xcafe 0xffffffff action ok
tc filter add dev $DEV parent 1: u32 match mark 0xbeef 0xffffffff action ok

3. Mount e.g. gfs2

4. dump stats:

tc -s -d filter show dev $DEV

5. Open e.g. wireshark and check the success rate of stats

I have also patches for dlm user space to set these values via
dlm controld.

- Alex

RESEND the whole series because I don't see them in the archive,
I think because I wasn't subscribed before.

Alexander Aring (2):
  fs: dlm: set skb mark for listen socket
  fs: dlm: set skb mark per peer socket

 fs/dlm/config.c   | 44 ++++++++++++++++++++++++++++++++++++++++++++
 fs/dlm/config.h   |  2 ++
 fs/dlm/lowcomms.c | 40 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 86 insertions(+)

-- 
2.26.2