[ovs-dev] [PATCH 17/19] datapath: dp_sysfs_add_dp() needs RTNL lock.

Ben Pfaff blp at nicira.com
Thu Dec 9 18:18:34 UTC 2010


On Wed, Dec 08, 2010 at 10:14:15PM -0800, Jesse Gross wrote:
> We currently drop RTNL before adding a new datapath to sysfs but
> then access the dp data structures.  This moves the call to
> dp_sysfs_add_dp() before we drop the locks to prevent a potential
> race.  All other calls to sysfs functions already hold RTNL.
> 
> Found with lockdep.
> 
> Signed-off-by: Jesse Gross <jesse at nicira.com>

Acked-by: Ben Pfaff <blp at nicira.com>




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