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netlink: Export genl_lock() API for use by modules

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This lets kernel modules which use genl netlink APIs serialize netlink
processing.

Signed-off-by: James Chapman <[email protected]>
Reviewed-by: Randy Dunlap <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
James Chapman 2010-04-02 06:19:05 +00:00 • committed by David S. Miller
commit f408e0ce40
2 changed files with 12 additions and 2 deletions
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6
net/netlink/genetlink.c
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@ -20,15 +20,17 @@
static DEFINE_MUTEX(genl_mutex); /* serialization of message processing */
static inline void genl_lock(void)
void genl_lock(void)
{
mutex_lock(&genl_mutex);
}
EXPORT_SYMBOL(genl_lock);
static inline void genl_unlock(void)
void genl_unlock(void)
{
mutex_unlock(&genl_mutex);
}
EXPORT_SYMBOL(genl_unlock);
#define GENL_FAM_TAB_SIZE 16
#define GENL_FAM_TAB_MASK (GENL_FAM_TAB_SIZE - 1)