#define gop_rdwr(rw,gp,base,len,offset,segflg,unit,cred,aresid) \
vn_rdwr((rw),(gp),(base),(len),(offset),(segflg),(unit),(cred),(cred),(aresid), curthread)
extern struct mtx afs_global_mtx;
+extern struct thread *afs_global_owner;
#define AFS_GLOCK() mtx_lock(&afs_global_mtx)
#define AFS_GUNLOCK() mtx_unlock(&afs_global_mtx)
#define ISAFS_GLOCK() (mtx_owned(&afs_global_mtx))