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Code

swconfig: use a mutex instead of a spinlock, many swconfig calls sleep

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30952 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2012-03-15 19:32:31 +00:00
parent b5e9c6c090
commit a2e617077c
2 changed files with 6 additions and 6 deletions
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10
target/linux/generic/files/drivers/net/phy/swconfig.c
View File

@ -353,7 +353,7 @@ swconfig_get_dev(struct genl_info *info)
break; break;
} }
if (dev) if (dev)
spin_lock(&dev->lock); mutex_lock(&dev->sw_mutex);
else else
DPRINTF("device %d not found\n", id); DPRINTF("device %d not found\n", id);
swconfig_unlock(); swconfig_unlock();
@ -364,7 +364,7 @@ done:
static inline void static inline void
swconfig_put_dev(struct switch_dev *dev) swconfig_put_dev(struct switch_dev *dev)
{ {
spin_unlock(&dev->lock); mutex_unlock(&dev->sw_mutex);
} }
static int static int
@ -962,7 +962,7 @@ register_switch(struct switch_dev *dev, struct net_device *netdev)
return -ENOMEM; return -ENOMEM;
} }
swconfig_defaults_init(dev); swconfig_defaults_init(dev);
spin_lock_init(&dev->lock); mutex_init(&dev->sw_mutex);
swconfig_lock(); swconfig_lock();
dev->id = ++swdev_id; dev->id = ++swdev_id;
@ -1000,11 +1000,11 @@ unregister_switch(struct switch_dev *dev)
{ {
swconfig_destroy_led_trigger(dev); swconfig_destroy_led_trigger(dev);
kfree(dev->portbuf); kfree(dev->portbuf);
spin_lock(&dev->lock); mutex_lock(&dev->sw_mutex);
swconfig_lock(); swconfig_lock();
list_del(&dev->dev_list); list_del(&dev->dev_list);
swconfig_unlock(); swconfig_unlock();
spin_unlock(&dev->lock); mutex_unlock(&dev->sw_mutex);
} }
EXPORT_SYMBOL_GPL(unregister_switch); EXPORT_SYMBOL_GPL(unregister_switch);

2
target/linux/generic/files/include/linux/switch.h
View File

@ -191,7 +191,7 @@ struct switch_dev {
struct list_head dev_list; struct list_head dev_list;
unsigned long def_global, def_port, def_vlan; unsigned long def_global, def_port, def_vlan;
spinlock_t lock; struct mutex sw_mutex;
struct switch_port *portbuf; struct switch_port *portbuf;
char buf[128]; char buf[128];