diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-03-20 18:06:20 +0100 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-08-13 16:09:02 -0400 |
| commit | a03743c4b7075a4b542cce418941968ddc974b85 (patch) | |
| tree | 51804a549988660e740c4aa04668b036b14c99ed /include | |
| parent | dfa78e4b0354095af86b641001aba8960d6dd27c (diff) | |
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 4edb17ed672c..0b58fd6fe2ea 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) \ |