From: michi1@michaelblizek.twilightparadox.com (michi1 at michaelblizek.twilightparadox.com)
To: kernelnewbies@lists.kernelnewbies.org
Subject: struct net_device locking
Date: Thu, 29 Dec 2011 19:24:21 +0100 [thread overview]
Message-ID: <20111229182421.GB2173@grml> (raw)
Hi!
I could not see any locking being done with "struct net_device" at all even
tough there are many read+write accesses to non-atomic variables. For example:
Changing mac addresses:
user space netlink socket call to set IFLA_ADDRESS
http://lxr.linux.no/linux+v3.1.6/net/core/rtnetlink.c#L1521
http://lxr.linux.no/linux+v3.1.6/net/core/rtnetlink.c#L1322
call to device, e.g. http://lxr.linux.no/linux+v3.1.6/drivers/net/e100.c#L2195
Sending an arp response:
http://lxr.linux.no/linux+v3.1.6/net/ipv4/arp.c#L859
Any ideas/pointers?
-Michi
--
programing a layer 3+4 network protocol for mesh networks
see http://michaelblizek.twilightparadox.com
reply other threads:[~2011-12-29 18:24 UTC|newest]
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