xnu-2782.20.48.tar.gz

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

diff --git a/bsd/sys/lockf.h b/bsd/sys/lockf.h
index df4dec9c1874ee09fa54f8eb46e0881ba52a6a99..c12abebf00612ce0cd6f03ac7b83a08111fb9645 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
@@ -90,12 +95,14 @@ struct lockf {
        off_t   lf_start;           /* Byte # of the start of the lock */
        off_t   lf_end;             /* Byte # of the end of the lock (-1=EOF) */
        caddr_t lf_id;              /* Id of the resource holding the lock */
-        uint32_t lf_waiters;        /* count of waiters on this lock */
        struct  lockf **lf_head;    /* Back pointer to the head of the locf list */
        struct vnode *lf_vnode;     /* Back pointer to the inode */
        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 /* IMPORTANCE_INHERITANCE */
 };
 
 #pragma pack()
@@ -105,14 +112,17 @@ struct lockf {
 
 __BEGIN_DECLS
 
+#ifdef KERNEL_PRIVATE
 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 *);
 void   lf_printlist(char *, struct lockf *);
 #endif
+#endif /* KERNEL_PRIVATE */
 
 __END_DECLS