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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-03-20 17:06:20 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2013-04-04 22:09:40 (GMT) |
| commit | 18b4ed55ef83e77e8df2c45f1a99ffc6e5c07db6 (patch) | |
| tree | e8441a32ac099c5b1a44507bdc0c499ece030c18 /include | |
| parent | 14e27282bb54af3db98aa29fcd83895438a3bc98 (diff) | |
| download | linux-fsl-qoriq-18b4ed55ef83e77e8df2c45f1a99ffc6e5c07db6.tar.xz | |
net: make devnet_rename_seq a mutex
On RT write_seqcount_begin() disables preemption and device_rename()
allocates memory with GFP_KERNEL and grabs later the sysfs_mutex mutex.
Since I don't see a reason why this can't be a mutex, make it one. We
probably don't have that much reads at the same time in the hot path.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netdevice.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index b705426..041bc5b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1579,7 +1579,7 @@ extern int call_netdevice_notifiers(unsigned long val, struct net_device *dev); extern rwlock_t dev_base_lock; /* Device list lock */ -extern seqcount_t devnet_rename_seq; /* Device rename seq */ +extern struct mutex devnet_rename_mutex; #define for_each_netdev(net, d) \ |