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authorNikolay Aleksandrov <nikolay@redhat.com>2013-10-24 12:09:24 +0200
committerDavid S. Miller <davem@davemloft.net>2013-10-25 19:26:58 -0400
commitc7c6effdeffcafd792b9f880ad52e48689eea4ad (patch)
treeb80c4d38acd41a1d7b3afcbc5ba5a2f1958d401e /net/core
parent45e526e80e6fdc796d3bc05716d5c930a427df4d (diff)
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op-kernel-dev-c7c6effdeffcafd792b9f880ad52e48689eea4ad.tar.gz
netconsole: fix multiple race conditions
In every netconsole option that can be set through configfs there's a race when checking for nt->enabled since it can be modified at the same time. Probably the most damage can be done by store_enabled when racing with another instance of itself. Fix all the races with one stone by moving the mutex lock around the ->store call for all options. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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