xnu-792.10.96.tar.gz

[apple/xnu.git] / bsd / hfs / hfs_cnode.c

diff --git a/bsd/hfs/hfs_cnode.c b/bsd/hfs/hfs_cnode.c
index 132b17cc2e2c7ba3cc0afd73514496e9048f1d96..e7d86d973947b30fd284f5af7215ad54ed8b980e 100644 (file)
--- a/bsd/hfs/hfs_cnode.c
+++ b/bsd/hfs/hfs_cnode.c
@@ -995,7 +995,8 @@ void
 hfs_unlock(struct cnode *cp)
 {
         vnode_t rvp = NULLVP;
-        vnode_t dvp = NULLVP;
+        vnode_t vp = NULLVP;
+       u_int32_t c_flag;
 
        /* System files need to keep track of owner */
        if ((cp->c_fileid < kHFSFirstUserCatalogNodeID) &&
@@ -1012,21 +1013,31 @@ hfs_unlock(struct cnode *cp)
                        }
                }
        }
-       if (cp->c_flag & C_NEED_DVNODE_PUT)
-               dvp = cp->c_vp;
-
-       if (cp->c_flag & C_NEED_RVNODE_PUT)
-               rvp = cp->c_rsrc_vp;
-
-       cp->c_flag &= ~(C_NEED_DVNODE_PUT | C_NEED_RVNODE_PUT);
+       c_flag = cp->c_flag;
+       cp->c_flag &= ~(C_NEED_DVNODE_PUT | C_NEED_RVNODE_PUT | C_NEED_DATA_SETSIZE | C_NEED_RSRC_SETSIZE);
+       if (c_flag & (C_NEED_DVNODE_PUT | C_NEED_DATA_SETSIZE)) {
+               vp = cp->c_vp;
+       }
+       if (c_flag & (C_NEED_RVNODE_PUT | C_NEED_RSRC_SETSIZE)) {
+                rvp = cp->c_rsrc_vp;
+       }
 
-       cp-> c_lockowner = NULL;
+       cp->c_lockowner = NULL;
        lck_rw_done(&cp->c_rwlock);
 
-       if (dvp)
-               vnode_put(dvp);
-       if (rvp)
-               vnode_put(rvp);
+       /* Perform any vnode post processing after cnode lock is dropped. */
+       if (vp) {
+               if (c_flag & C_NEED_DATA_SETSIZE)
+                       ubc_setsize(vp, 0);
+               if (c_flag & C_NEED_DVNODE_PUT)
+                       vnode_put(vp);
+       }
+       if (rvp) {
+               if (c_flag & C_NEED_RSRC_SETSIZE)
+                       ubc_setsize(rvp, 0);
+               if (c_flag & C_NEED_RVNODE_PUT)
+                       vnode_put(rvp);
+       }
 }
 
 /*