From: Jay Vosburgh <fubar@us.ibm.com>
Date: Fri, 18 Jan 2008 00:24:57 +0000 (-0800)
Subject: bonding: fix locking in sysfs primary/active selection
X-Git-Tag: v2.6.24~41^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e934dd7862e7f613b2ce9730d548a0a70913c8f7;p=pandora-kernel.git

bonding: fix locking in sysfs primary/active selection

	Fix the functions that store the primary and active slave
options via sysfs to hold the correct locks in the correct order.

	The bond_change_active_slave and bond_select_active_slave
functions both require rtnl, bond->lock for read and curr_slave_lock for
write_bh, and no other locks.  This is so that the lower level
mode-specific functions (notably for balance-alb mode) can release locks
down to just rtnl in order to call, e.g., dev_set_mac_address with the
locks it expects (rtnl only).

Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

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