xnu-792.13.8.tar.gz

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

diff --git a/bsd/hfs/hfs_vnops.c b/bsd/hfs/hfs_vnops.c
index 507bb153cb8b12485a6d3756b3816f86017fa636..29288a58ec5b54e42a8cef49da6f3b017ef6b087 100644 (file)
--- a/bsd/hfs/hfs_vnops.c
+++ b/bsd/hfs/hfs_vnops.c
@@ -1,23 +1,31 @@
 /*
  * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * This file contains Original Code and/or Modifications of Original Code 
+ * as defined in and that are subject to the Apple Public Source License 
+ * Version 2.0 (the 'License'). You may not use this file except in 
+ * compliance with the License.  The rights granted to you under the 
+ * License may not be used to create, or enable the creation or 
+ * redistribution of, unlawful or unlicensed copies of an Apple operating 
+ * system, or to circumvent, violate, or enable the circumvention or 
+ * violation of, any terms of an Apple operating system software license 
+ * agreement.
+ *
+ * Please obtain a copy of the License at 
+ * http://www.opensource.apple.com/apsl/ and read it before using this 
+ * file.
+ *
+ * The Original Code and all software distributed under the License are 
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
+ * Please see the License for the specific language governing rights and 
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  */
 
 #include <sys/systm.h>
@@ -1565,18 +1573,17 @@ hfs_removefile(struct vnode *dvp, struct vnode *vp, struct componentname *cnp,
        if ((cp->c_flag & C_HARDLINK) == 0 &&
            (!dataforkbusy || !rsrcforkbusy)) {
                /*
-                * A ubc_setsize can cause a pagein here 
-                * so we need to the drop cnode lock. Note
-                * that we still hold the truncate lock.
+                * A ubc_setsize can cause a pagein so defer it
+                * until after the cnode lock is dropped.  The
+                * cnode lock cannot be dropped/reacquired here
+                * since we might already hold the journal lock.
                 */
-               hfs_unlock(cp);
                if (!dataforkbusy && cp->c_datafork->ff_blocks && !isbigfile) {
-                       ubc_setsize(vp, 0);
+                       cp->c_flag |= C_NEED_DATA_SETSIZE;
                }
                if (!rsrcforkbusy && rvp) {
-                       ubc_setsize(rvp, 0);
+                       cp->c_flag |= C_NEED_RSRC_SETSIZE;
                }
-               hfs_lock(cp, HFS_FORCE_LOCK);
        } else {
            struct cat_desc cndesc;
 
@@ -1890,10 +1897,10 @@ out:
 __private_extern__ void
 replace_desc(struct cnode *cp, struct cat_desc *cdp)
 {
-    if (&cp->c_desc == cdp) {
-        return;
-    }
-         
+       if (&cp->c_desc == cdp) {
+               return;
+       }
+
        /* First release allocated name buffer */
        if (cp->c_desc.cd_flags & CD_HASBUF && cp->c_desc.cd_nameptr != 0) {
                char *name = cp->c_desc.cd_nameptr;
@@ -2829,7 +2836,7 @@ hfs_update(struct vnode *vp, __unused int waitfor)
         * we have to do the update.
         */
        if (ISSET(cp->c_flag, C_FORCEUPDATE) == 0 &&
-           (ISSET(cp->c_flag, C_DELETED) || 
+           (ISSET(cp->c_flag, C_DELETED) ||
            (dataforkp && cp->c_datafork->ff_unallocblocks) ||
            (rsrcforkp && cp->c_rsrcfork->ff_unallocblocks))) {
        //      cp->c_flag &= ~(C_ACCESS | C_CHANGE | C_UPDATE);
@@ -3713,7 +3720,6 @@ struct vnodeopv_entry_desc hfs_specop_entries[] = {
        { &vnop_pathconf_desc, (VOPFUNC)spec_pathconf },                /* pathconf */
        { &vnop_advlock_desc, (VOPFUNC)err_advlock },           /* advlock */
        { &vnop_bwrite_desc, (VOPFUNC)hfs_vnop_bwrite },
-       { &vnop_devblocksize_desc, (VOPFUNC)spec_devblocksize }, /* devblocksize */
        { &vnop_pagein_desc, (VOPFUNC)hfs_vnop_pagein },                /* Pagein */
        { &vnop_pageout_desc, (VOPFUNC)hfs_vnop_pageout },      /* Pageout */
         { &vnop_copyfile_desc, (VOPFUNC)err_copyfile },                /* copyfile */