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bonding: fix rx_handler locking

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This prevents possible race between bond_enslave and bond_handle_frame
as reported by Nicolas by moving rx_handler register/unregister.
slave->bond is added to hold pointer to master bonding sructure. That
way dev->master is no longer used in bond_handler_frame.
Also, this removes "BUG: scheduling while atomic" message

Reported-by: Nicolas de Pesloüan <nicolas.2p.debian@gmail.com>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Tested-by: Nicolas de Pesloüan <nicolas.2p.debian@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
2011-03-22 02:38:12 +00:00
committed by David S. Miller
parent cda6587c21
commit 35d48903e9
2 changed files with 32 additions and 25 deletions
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1
drivers/net/bonding/bonding.h
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@@ -187,6 +187,7 @@ struct slave {
struct net_device *dev; /* first - useful for panic debug */
struct slave *next;
struct slave *prev;
struct bonding *bond; /* our master */
int delay;
unsigned long jiffies;
unsigned long last_arp_rx;