xnu-4570.31.3.tar.gz

[apple/xnu.git] / bsd / sys / lockf.h

diff --git a/bsd/sys/lockf.h b/bsd/sys/lockf.h
index ffa77957356febb00624fe6d29dac5ba3b1b6b08..e20bf87335bbd6b2c3222a4ea9bcdf388de6eef4 100644 (file)
--- a/bsd/sys/lockf.h
+++ b/bsd/sys/lockf.h
@@ -73,6 +73,11 @@ struct vnode;
 MALLOC_DECLARE(M_LOCKF);
 #endif
 
+#if IMPORTANCE_INHERITANCE
+#define LF_NOT_BOOSTED  0
+#define LF_BOOSTED      1
+#endif /* IMPORTANCE_INHERITANCE */
+
 /*
  * The lockf structure is a kernel structure which contains the information
  * associated with a byte range lock.  The lockf structures are linked into
@@ -95,6 +100,10 @@ struct lockf {
        struct  lockf *lf_next;     /* Pointer to the next lock on this inode */
        struct  locklist lf_blkhd;  /* List of requests blocked on this lock */
        TAILQ_ENTRY(lockf) lf_block;/* A request waiting for a lock */
+#if IMPORTANCE_INHERITANCE
+       int     lf_boosted;         /* Is the owner of the lock boosted */
+#endif
+       struct proc *lf_owner;      /* The proc that did the SETLK, if known */
 };
 
 #pragma pack()
@@ -108,6 +117,7 @@ __BEGIN_DECLS
 int    lf_advlock(struct vnop_advlock_args *);
 int    lf_assert(struct vnop_advlock_args *, void **);
 void   lf_commit(void *, int);
+void   lf_abort_advlocks(vnode_t);
 
 #ifdef LOCKF_DEBUG
 void   lf_print(char *, struct lockf *);