[ovs-git] Open vSwitch: datapath: Move rcu_read_lock_held(), rcu_dereference_*() to rcupdate.h. (master)

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- Log -----------------------------------------------------------------
commit 77263a25ab4025be9e8ac1ab684ffc459550b16a
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=77263a25ab4025be9e8ac1ab684ffc459550b16a
Author: Ben Pfaff <blp at nicira.com>
		
datapath: Move rcu_read_lock_held(), rcu_dereference_*() to rcupdate.h.
		
<linux/rcupdate.h> is the normal location of these functions, so we should
not put compat code for them in <linux/rtnetlink.h>.

This caused build failures for datapath/table.c, which in later commits
uses rcu_dereference_check() and rcu_dereference_protected() but does not
need RTNL.

Signed-off-by: Ben Pfaff <blp at nicira.com>
Acked-by: Jesse Gross <jesse at nicira.com>


commit 3f1a322db440dbe2f4c1c1e7b89b4e003d0759c9
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=3f1a322db440dbe2f4c1c1e7b89b4e003d0759c9
Author: Ben Pfaff <blp at nicira.com>
		
datapath: Avoid sparse warning in compat header.
		
Without this change, sparse complains:

datapath/linux-2.6/compat-2.6/include/linux/rtnetlink.h:12:9: warning:
Using plain integer as NULL pointer

at least on kernels old enough to need this compat code anyway.  Might as
well suppress it, since it is easy.

Signed-off-by: Ben Pfaff <blp at nicira.com>
Acked-by: Jesse Gross <jesse at nicira.com>


-----------------------------------------------------------------------

Summary of changes:
 datapath/linux-2.6/Modules.mk                      |    1 +
 .../linux-2.6/compat-2.6/include/linux/rcupdate.h  |   21 ++++++++++++++++++++
 .../linux-2.6/compat-2.6/include/linux/rtnetlink.h |   15 +-------------
 3 files changed, 23 insertions(+), 14 deletions(-)
 create mode 100644 datapath/linux-2.6/compat-2.6/include/linux/rcupdate.h


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