diff options
| author | Gregory CLEMENT <gregory.clement@free-electrons.com> | 2016-02-04 22:09:29 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-02-13 06:02:19 -0500 |
| commit | 120cfa502c7763f4a3758b9601f2c13d33083d64 (patch) | |
| tree | 65698e251a6ed799f6414a32f1f172b5fabab0b2 /net/unix/af_unix.c | |
| parent | 5888511ea053fa8d6019252ad333e8a7cb7f9475 (diff) | |
| download | linux-120cfa502c7763f4a3758b9601f2c13d33083d64.tar.gz linux-120cfa502c7763f4a3758b9601f2c13d33083d64.tar.bz2 linux-120cfa502c7763f4a3758b9601f2c13d33083d64.zip | |
net: mvneta: Fix race condition during stopping
When stopping the port, the CPU notifier are still there whereas the
mvneta_stop_dev function calls mvneta_percpu_disable() on each CPUs.
It was possible to have a new CPU coming at this point which could be
racy.
This patch adds a flag preventing executing the code notifier for a new
CPU when the port is stopping. It also uses the spinlock introduces
previously. To avoid the deadlock, the lock has been moved outside the
mvneta_percpu_elect function.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions