diff options
| author | rwatson <rwatson@FreeBSD.org> | 2009-06-26 00:36:47 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2009-06-26 00:36:47 +0000 |
| commit | c4ac6ab020126b381316fa8dcb627571af2683c8 (patch) | |
| tree | c6f326c31b77486b02c2c684052c2a2a25bf0cf6 /sys/net/if_var.h | |
| parent | 6bcc6a84131914c0690ee04211ea2d70f7271ca8 (diff) | |
| download | FreeBSD-src-c4ac6ab020126b381316fa8dcb627571af2683c8.zip FreeBSD-src-c4ac6ab020126b381316fa8dcb627571af2683c8.tar.gz | |
Define four wrapper functions for interface address locking,
if_addr_rlock() and if_addr_runlock() for regular address lists, and
if_maddr_rlock() and if_maddr_runlock() for multicast address lists.
We will use these in various kernel modules to avoid encoding specific
type and locking strategy information into modules that currently use
IF_ADDR_LOCK() and IF_ADDR_UNLOCK() directly.
MFC after: 6 weeks
Diffstat (limited to 'sys/net/if_var.h')
| -rw-r--r-- | sys/net/if_var.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sys/net/if_var.h b/sys/net/if_var.h index 35e4232..df09035 100644 --- a/sys/net/if_var.h +++ b/sys/net/if_var.h @@ -253,6 +253,16 @@ typedef void if_init_f_t(void *); #define IF_ADDR_LOCK_ASSERT(if) mtx_assert(&(if)->if_addr_mtx, MA_OWNED) /* + * Function variations on locking macros intended to be used by loadable + * kernel modules in order to divorce them from the internals of address list + * locking. + */ +void if_addr_rlock(struct ifnet *ifp); /* if_addrhead */ +void if_addr_runlock(struct ifnet *ifp); /* if_addrhead */ +void if_maddr_rlock(struct ifnet *ifp); /* if_multiaddrs */ +void if_maddr_runlock(struct ifnet *ifp); /* if_multiaddrs */ + +/* * Output queues (ifp->if_snd) and slow device input queues (*ifp->if_slowq) * are queues of messages stored on ifqueue structures * (defined above). Entries are added to and deleted from these structures |
