/*
* Copyright (c) 2000 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@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
#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
#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>
#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 */
/*
* 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;
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
}
}
-#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
*
default:
panic("ffs_isblock");
}
+ /* NOTREACHED */
+ return 0;
}
/*
projects / apple / xnu.git / blobdiff