xnu-517.tar.gz

[apple/xnu.git] / bsd / ufs / ffs / ffs_vnops.c

diff --git a/bsd/ufs/ffs/ffs_vnops.c b/bsd/ufs/ffs/ffs_vnops.c
index cf6d5ba4d97e555c04d534fee669f93d0e0a1baa..68361f0d8c5491d705c1fc561627085536924b3c 100644 (file)
--- a/bsd/ufs/ffs/ffs_vnops.c
+++ b/bsd/ufs/ffs/ffs_vnops.c
@@ -1,21 +1,24 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_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.
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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. 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 OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_HEADER_END@
  */
@@ -69,6 +72,7 @@
 #include <sys/vnode.h>
 #include <sys/malloc.h>
 #include <sys/ubc.h>
+#include <sys/quota.h>
 
 #include <sys/vm.h>
 #include <vfs/vfs_support.h>
@@ -122,7 +126,7 @@ struct vnodeopv_entry_desc ffs_vnodeop_entries[] = {
        { &vop_symlink_desc, (VOPFUNC)ufs_symlink },            /* symlink */
        { &vop_readdir_desc, (VOPFUNC)ufs_readdir },            /* readdir */
        { &vop_readlink_desc, (VOPFUNC)ufs_readlink },          /* readlink */
-       { &vop_abortop_desc, (VOPFUNC)ufs_abortop },            /* abortop */
+       { &vop_abortop_desc, (VOPFUNC)nop_abortop },            /* abortop */
        { &vop_inactive_desc, (VOPFUNC)ufs_inactive },          /* inactive */
        { &vop_reclaim_desc, (VOPFUNC)ffs_reclaim },            /* reclaim */
        { &vop_lock_desc, (VOPFUNC)ufs_lock },                  /* lock */
@@ -146,6 +150,9 @@ struct vnodeopv_entry_desc ffs_vnodeop_entries[] = {
        { &vop_blktooff_desc, (VOPFUNC)ffs_blktooff },          /* blktooff */
        { &vop_offtoblk_desc, (VOPFUNC)ffs_offtoblk },          /* offtoblk */
        { &vop_cmap_desc, (VOPFUNC)ufs_cmap },                  /* cmap */
+       { &vop_getattrlist_desc, (VOPFUNC)ufs_getattrlist },    /* getattrlist */
+       { &vop_setattrlist_desc, (VOPFUNC)ufs_setattrlist },    /* setattrlist */
+       { &vop_kqfilt_add_desc, (VOPFUNC)ufs_kqfilt_add },  /* kqfilt_add */
        { (struct vnodeop_desc*)NULL, (int(*)())NULL }
 };
 struct vnodeopv_desc ffs_vnodeop_opv_desc =
@@ -262,6 +269,7 @@ struct vnodeopv_entry_desc ffs_fifoop_entries[] = {
        { &vop_blktooff_desc, (VOPFUNC)ffs_blktooff },          /* blktooff */
        { &vop_offtoblk_desc, (VOPFUNC)ffs_offtoblk },          /* offtoblk */
        { &vop_cmap_desc, (VOPFUNC)ufs_cmap },                  /* cmap */
+       { &vop_kqfilt_add_desc, (VOPFUNC)ufsfifo_kqfilt_add },  /* kqfilt_add */
        { (struct vnodeop_desc*)NULL, (int(*)())NULL }
 };
 struct vnodeopv_desc ffs_fifoop_opv_desc =
@@ -295,6 +303,7 @@ ffs_fsync(ap)
        struct buf *nbp;
        int s;
        struct inode *ip = VTOI(vp);
+       int retry = 0;
 
        /*
         * Write out any clusters.
@@ -325,8 +334,6 @@ loop:
                        (void) bwrite(bp);
                goto loop;
        }
-       if (vp->v_flag & VHASDIRTY)
-               ubc_pushdirty(vp);
 
        if (ap->a_waitfor == MNT_WAIT) {
                while (vp->v_numoutput) {
@@ -334,12 +341,25 @@ loop:
                        tsleep((caddr_t)&vp->v_numoutput, PRIBIO + 1, "ffs_fsync", 0);
                }
 
-               /* I have seen this happen for swapfile. So it is safer to
-                * check for dirty buffers again.  --Umesh
-                */
-               if (vp->v_dirtyblkhd.lh_first || (vp->v_flag & VHASDIRTY)) {
-                       vprint("ffs_fsync: dirty", vp);
-                       splx(s);
+               if (vp->v_dirtyblkhd.lh_first) {
+                       /* still have some dirty buffers */
+                       if (retry++ > 10) {
+                               vprint("ffs_fsync: dirty", vp);
+                               splx(s);
+                               /*
+                                * Looks like the requests are not
+                                * getting queued to the driver.
+                                * Retrying here causes a cpu bound loop.
+                                * Yield to the other threads and hope
+                                * for the best.
+                                */
+                               (void)tsleep((caddr_t)&vp->v_numoutput,
+                                               PRIBIO + 1, "ffs_fsync", hz/10);
+                               retry = 0;
+                       } else {
+                               splx(s);
+                       }
+                       /* try again */
                        goto loop;
                }
        }