X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/d7e50217d7adf6e52786a38bcaa4cd698cb9a79e..e2fac8b15b12a7979f72090454d850e612fc5b13:/bsd/ufs/ffs/ffs_subr.c

diff --git a/bsd/ufs/ffs/ffs_subr.c b/bsd/ufs/ffs/ffs_subr.c
index 9c466e0b6..d226a5680 100644
--- a/bsd/ufs/ffs/ffs_subr.c
+++ b/bsd/ufs/ffs/ffs_subr.c
@@ -1,16 +1,19 @@
 /*
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * 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.
+ * 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
@@ -20,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*
@@ -61,7 +64,7 @@
 #include <rev_endian_fs.h>
 #include <sys/param.h>
 #if REV_ENDIAN_FS
-#include <sys/mount.h>
+#include <sys/mount_internal.h>
 #endif /* REV_ENDIAN_FS */
 
 #ifndef KERNEL
@@ -70,7 +73,7 @@
 #else
 
 #include <sys/systm.h>
-#include <sys/vnode.h>
+#include <sys/vnode_internal.h>
 #include <sys/buf.h>
 #include <sys/quota.h>
 #include <ufs/ufs/quota.h>
@@ -79,7 +82,6 @@
 #include <ufs/ffs/ffs_extern.h>
 #if REV_ENDIAN_FS
 #include <ufs/ufs/ufs_byte_order.h>
-#include <architecture/byte_order.h>
 #endif /* REV_ENDIAN_FS */
 
 /*
@@ -87,14 +89,9 @@
  * directory "ip".  If "res" is non-zero, fill it in with a pointer to the
  * remaining space in the directory.
  */
+__private_extern__
 int
-ffs_blkatoff(ap)
-	struct vop_blkatoff_args /* {
-		struct vnode *a_vp;
-		off_t a_offset;
-		char **a_res;
-		struct buf **a_bpp;
-	} */ *ap;
+ffs_blkatoff(vnode_t vp, off_t offset, char **res, buf_t *bpp)
 {
 	struct inode *ip;
 	register struct fs *fs;
@@ -102,28 +99,28 @@ ffs_blkatoff(ap)
 	ufs_daddr_t lbn;
 	int bsize, error;
 #if REV_ENDIAN_FS
-	struct mount *mp=(ap->a_vp)->v_mount;
+	struct mount *mp = vnode_mount(vp);
 	int rev_endian=(mp->mnt_flag & MNT_REVEND);
 #endif /* REV_ENDIAN_FS */
 
-	ip = VTOI(ap->a_vp);
+	ip = VTOI(vp);
 	fs = ip->i_fs;
-	lbn = lblkno(fs, ap->a_offset);
+	lbn = lblkno(fs, offset);
 	bsize = blksize(fs, ip, lbn);
 
-	*ap->a_bpp = NULL;
-	if (error = bread(ap->a_vp, lbn, bsize, NOCRED, &bp)) {
-		brelse(bp);
+	*bpp = NULL;
+	if (error = (int)buf_bread(vp, (daddr64_t)((unsigned)lbn), bsize, NOCRED, &bp)) {
+		buf_brelse(bp);
 		return (error);
 	}
 #if	REV_ENDIAN_FS
 	if (rev_endian)
-		byte_swap_dir_block_in(bp->b_data, bp->b_bcount);
+		byte_swap_dir_block_in((char *)buf_dataptr(bp), buf_count(bp));
 #endif	/* REV_ENDIAN_FS */
 
-	if (ap->a_res)
-		*ap->a_res = (char *)bp->b_data + blkoff(fs, ap->a_offset);
-	*ap->a_bpp = bp;
+	if (res)
+		*res = (char *)buf_dataptr(bp) + blkoff(fs, offset);
+	*bpp = bp;
 	return (0);
 }
 #endif
@@ -163,59 +160,6 @@ ffs_fragacct(fs, fragmap, fraglist, cnt)
 	}
 }
 
-#if defined(KERNEL) && DIAGNOSTIC
-void
-ffs_checkoverlap(bp, ip)
-	struct buf *bp;
-	struct inode *ip;
-{
-	register struct buf *ebp, *ep;
-	register ufs_daddr_t start, last;
-	struct vnode *vp;
-#ifdef NeXT
-	int devBlockSize=0;
-#endif /* NeXT */
-
-	ebp = &buf[nbuf];
-	start = bp->b_blkno;
-#ifdef NeXT
-	VOP_DEVBLOCKSIZE(ip->i_devvp,&devBlockSize);
-	last = start + btodb(bp->b_bcount, devBlockSize) - 1;
-#else
-	last = start + btodb(bp->b_bcount) - 1;
-#endif /* NeXT */
-	for (ep = buf; ep < ebp; ep++) {
-		if (ep == bp || (ep->b_flags & B_INVAL) ||
-		    ep->b_vp == NULLVP)
-			continue;
-		if (VOP_BMAP(ep->b_vp, (ufs_daddr_t)0, &vp, (ufs_daddr_t)0,
-		    NULL))
-			continue;
-		if (vp != ip->i_devvp)
-			continue;
-		/* look for overlap */
-#ifdef NeXT
-		if (ep->b_bcount == 0 || ep->b_blkno > last ||
-		    ep->b_blkno + btodb(ep->b_bcount, devBlockSize) <= start)
-			continue;
-		vprint("Disk overlap", vp);
-		(void)printf("\tstart %d, end %d overlap start %d, end %d\n",
-			start, last, ep->b_blkno,
-			ep->b_blkno + btodb(ep->b_bcount, devBlockSize) - 1);
-#else
-		if (ep->b_bcount == 0 || ep->b_blkno > last ||
-		    ep->b_blkno + btodb(ep->b_bcount) <= start)
-			continue;
-		vprint("Disk overlap", vp);
-		(void)printf("\tstart %d, end %d overlap start %d, end %d\n",
-			start, last, ep->b_blkno,
-			ep->b_blkno + btodb(ep->b_bcount) - 1);
-#endif /* NeXT */
-		panic("Disk buffer overlap");
-	}
-}
-#endif /* DIAGNOSTIC */
-
 /*
  * block operations
  *
@@ -244,6 +188,8 @@ ffs_isblock(fs, cp, h)
 	default:
 		panic("ffs_isblock");
 	}
+	/* NOTREACHED */
+	return 0;
 }
 
 /*