d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add new variants of the IF_ADDR_*LOCK*() macros used for protecting

Browse Source 
interface address lists that distinguish read locks from write locks.
To preserve the KPI, the previous operations are mapped to the write
lock macros.  The lock is still kept as a mutex for now.

Reviewed by:	bz
MFC after:	2 weeks
This commit is contained in:
jhb 2012-01-05 18:35:49 +00:00
parent abacd98b68
commit 219e62f17e
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
sys/net/if_var.h
View File

@ -249,9 +249,15 @@ typedef void if_init_f_t(void *);
#define IF_ADDR_LOCK_INIT(if) mtx_init(&(if)->if_addr_mtx, \
"if_addr_mtx", NULL, MTX_DEF)
#define IF_ADDR_LOCK_DESTROY(if) mtx_destroy(&(if)->if_addr_mtx)
#define IF_ADDR_LOCK(if) mtx_lock(&(if)->if_addr_mtx)
#define IF_ADDR_UNLOCK(if) mtx_unlock(&(if)->if_addr_mtx)
#define IF_ADDR_WLOCK(if) mtx_lock(&(if)->if_addr_mtx)
#define IF_ADDR_WUNLOCK(if) mtx_unlock(&(if)->if_addr_mtx)
#define IF_ADDR_RLOCK(if) mtx_lock(&(if)->if_addr_mtx)
#define IF_ADDR_RUNLOCK(if) mtx_unlock(&(if)->if_addr_mtx)
#define IF_ADDR_LOCK_ASSERT(if) mtx_assert(&(if)->if_addr_mtx, MA_OWNED)
#define IF_ADDR_WLOCK_ASSERT(if) mtx_assert(&(if)->if_addr_mtx, MA_OWNED)
/* XXX: Compat. */
#define IF_ADDR_LOCK(if) IF_ADDR_WLOCK(if)
#define IF_ADDR_UNLOCK(if) IF_ADDR_WUNLOCK(if)
/*
* Function variations on locking macros intended to be used by loadable