xnu-517.9.5.tar.gz

[apple/xnu.git] / bsd / miscfs / devfs / devfs_vfsops.c

diff --git a/bsd/miscfs/devfs/devfs_vfsops.c b/bsd/miscfs/devfs/devfs_vfsops.c
index 4b11822bfef3b8dccdf20328af2a6bcd79ffc991..4c6b4729bdc5307bde54f54ddbe3ac443b8cafa3 100644 (file)
--- a/bsd/miscfs/devfs/devfs_vfsops.c
+++ b/bsd/miscfs/devfs/devfs_vfsops.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
@@ -87,7 +87,6 @@ devfs_init(struct vfsconf *vfsp)
 
     if (devfs_sinit())
        return (EOPNOTSUPP);
-    printf("devfs enabled\n");
     devfs_make_node(makedev(0, 0), DEVFS_CHAR, 
                    UID_ROOT, GID_WHEEL, 0622, "console");
     devfs_make_node(makedev(2, 0), DEVFS_CHAR, 
@@ -201,13 +200,15 @@ devfs_unmount( struct mount *mp, int mntflags, struct proc *p)
 {
        struct devfsmount *devfs_mp_p = (struct devfsmount *)mp->mnt_data;
        int flags = 0;
+       int force = 0;
        int error;
        
        if (mntflags & MNT_FORCE) {
                flags |= FORCECLOSE;
+               force = 1;
        }
        error = vflush(mp, NULLVP, flags);
-       if (error)
+       if (error && !force)
                return error;
 
        DEVFS_LOCK(p);
@@ -374,8 +375,14 @@ devfs_kernel_mount(char * mntname)
        /*
         * Allocate and initialize the filesystem.
         */
-       mp = _MALLOC_ZONE((u_long)sizeof(struct mount), M_MOUNT, M_WAITOK);
+       MALLOC_ZONE(mp, struct mount *, (u_long)sizeof(struct mount),
+               M_MOUNT, M_WAITOK);
        bzero((char *)mp, (u_long)sizeof(struct mount));
+
+    /* Initialize the default IO constraints */
+    mp->mnt_maxreadcnt = mp->mnt_maxwritecnt = MAXPHYS;
+    mp->mnt_segreadcnt = mp->mnt_segwritecnt = 32;
+
        lockinit(&mp->mnt_lock, PVFS, "vfslock", 0, 0);
        (void)vfs_busy(mp, LK_NOWAIT, 0, procp);
        LIST_INIT(&mp->mnt_vnodelist);
@@ -396,12 +403,15 @@ devfs_kernel_mount(char * mntname)
        if (error) {
            printf("devfs_kernel_mount: mount %s failed: %d", mntname, error);
            mp->mnt_vfc->vfc_refcount--;
+
+           if (mp->mnt_kern_flag & MNTK_IO_XINFO)
+                   FREE(mp->mnt_xinfo_ptr, M_TEMP);
            vfs_unbusy(mp, procp);
-           _FREE_ZONE(mp, sizeof (struct mount), M_MOUNT);
+
+           FREE_ZONE(mp, sizeof (struct mount), M_MOUNT);
            vput(vp);
            return (error);
        }
-       printf("devfs on %s\n", mntname);
        simple_lock(&mountlist_slock);
        CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
        simple_unlock(&mountlist_slock);