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Hi,
in an effort to keep more people up to date on recent developments
to LVS I post a report of changes for each kernel release. This
report looks at the changes to LVS in the 2.6.38 kernel.
In all 2.6.38 was a rather quiet release for LVS compared to the
previous few releases.
Features
* There were no new features added
Bug Fixes
* Julian fixed a locking bug which manifests if destinations are updated
(frequently). This problem was introduced in 2.6.37 and a -stable
fix is included in 2.6.37.4.
Clean-Ups
* There were a small number of clean-ups as per the git log below
There has been an very large amount of work on LVS for 2.6.39, I suspect a
record number of patches. The new features include a new synchronisation
protocol and support for network namespaces. Special thanks to Hans and
Julian for their work in this area. There have also been a large number of
clean-ups, thanks to everyone who contributed. If you are interested in
any of these changes I suggest looking at 2.6.39-rc1 once it is released
for a taste of things to come.
This report was generated with the help of the following git log:
# git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
# cd linux-2.6
# git log --no-merges v2.6.37..v2.6.38 \
net/netfilter/ipvs/ include/net/ip_vs.h include/linux/ip_vs.h
commit ff75f40f44ae9b79d520bf32a05d35af74a805c0
Author: Julian Anastasov <ja@xxxxxx>
Date: Tue Feb 22 10:40:25 2011 +0200
ipvs: fix dst_lock locking on dest update
Fix dst_lock usage in __ip_vs_update_dest. We need
_bh locking because destination is updated in user context.
Can cause lockups on frequent destination updates.
Problem reported by Simon Kirby. Bug was introduced
in 2.6.37 from the "ipvs: changes for local real server"
change.
Signed-off-by: Julian Anastasov <ja@xxxxxx>
Signed-off-by: Hans Schillstrom <hans@xxxxxxxxxxxxxxx>
Signed-off-by: Simon Horman <horms@xxxxxxxxxxxx>
commit afe2c511fb2d75f1515081ff1be15bd79cfe722d
Author: Tejun Heo <tj@xxxxxxxxxx>
Date: Tue Dec 14 16:21:17 2010 +0100
workqueue: convert cancel_rearming_delayed_work[queue]() users to
cancel_delayed_work_sync()
cancel_rearming_delayed_work[queue]() has been superceded by
cancel_delayed_work_sync() quite some time ago. Convert all the
in-kernel users. The conversions are completely equivalent and
trivial.
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Acked-by: "David S. Miller" <davem@xxxxxxxxxxxxx>
Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
Acked-by: Evgeniy Polyakov <zbr@xxxxxxxxxxx>
Cc: Jeff Garzik <jgarzik@xxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>
Cc: netdev@xxxxxxxxxxxxxxx
Cc: Anton Vorontsov <cbou@xxxxxxx>
Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
Cc: "J. Bruce Fields" <bfields@xxxxxxxxxxxx>
Cc: Neil Brown <neilb@xxxxxxx>
Cc: Alex Elder <aelder@xxxxxxx>
Cc: xfs-masters@xxxxxxxxxxx
Cc: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: netfilter-devel@xxxxxxxxxxxxxxx
Cc: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
Cc: linux-nfs@xxxxxxxxxxxxxxx
commit 5811662b15db018c740c57d037523683fd3e6123
Author: Changli Gao <xiaosuo@xxxxxxxxx>
Date: Fri Nov 12 18:43:55 2010 +0000
net: use the macros defined for the members of flowi
Use the macros defined for the members of flowi to clean the code up.
Signed-off-by: Changli Gao <xiaosuo@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
commit c753796769e4fb0cd813b6e5801b3c01f4681d4f
Author: David S. Miller <davem@xxxxxxxxxxxxx>
Date: Thu Nov 11 17:07:48 2010 -0800
ipv4: Make rt->fl.iif tests lest obscure.
When we test rt->fl.iif against zero, we're seeing if it's
an output or an input route.
Make that explicit with some helper functions.
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
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