2  * Copyright (c) 2000-2001 Christoph Hellwig.
31  * Veritas filesystem driver - filesystem to disk block mapping.
46 	printk(KERN_DEBUG "type=%Lu ", typ->vt_hdr >> VXFS_TYPED_TYPESHIFT);  in vxfs_typdump()
47 	printk("offset=%Lx ", typ->vt_hdr & VXFS_TYPED_OFFSETMASK);  in vxfs_typdump()
48 	printk("block=%x ", typ->vt_block);  in vxfs_typdump()
49 	printk("size=%x\n", typ->vt_size);  in vxfs_typdump()
54  * vxfs_bmap_ext4 - do bmap for ext4 extents
55  * @ip:		pointer to the inode we do bmap for
56  * @iblock:	logical block.
60  *   ext4-style extents (which are much like the traditional UNIX
64  *   The physical block number on success, else Zero.
67 vxfs_bmap_ext4(struct inode *ip, long bn)  in vxfs_bmap_ext4()  argument
69 	struct super_block *sb = ip->i_sb;  in vxfs_bmap_ext4()
70 	struct vxfs_inode_info *vip = VXFS_INO(ip);  in vxfs_bmap_ext4()
72 	unsigned long bsize = sb->s_blocksize;  in vxfs_bmap_ext4()
73 	u32 indsize = fs32_to_cpu(sbi, vip->vii_ext4.ve4_indsize);  in vxfs_bmap_ext4()
76 	if (indsize > sb->s_blocksize)  in vxfs_bmap_ext4()
80 		struct direct *d = vip->vii_ext4.ve4_direct + i;  in vxfs_bmap_ext4()
81 		if (bn >= 0 && bn < fs32_to_cpu(sbi, d->size))  in vxfs_bmap_ext4()
82 			return (bn + fs32_to_cpu(sbi, d->extent));  in vxfs_bmap_ext4()
83 		bn -= fs32_to_cpu(sbi, d->size);  in vxfs_bmap_ext4()
92 			fs32_to_cpu(sbi, vip->vii_ext4.ve4_indir[0]));  in vxfs_bmap_ext4()
96 		indir = (__fs32 *)buf->b_data;  in vxfs_bmap_ext4()
114  * vxfs_bmap_indir - recursion for vxfs_bmap_typed
115  * @ip:		pointer to the inode we do bmap for
116  * @indir:	indirect block we start reading at
118  * @block:	partially result from further searches
122  *   and performs the type-defined action.
125  *   The physical block number on success, else Zero.
131 vxfs_bmap_indir(struct inode *ip, long indir, int size, long block)  in vxfs_bmap_indir()  argument
133 	struct vxfs_sb_info		*sbi = VXFS_SBI(ip->i_sb);  in vxfs_bmap_indir()
138 	for (i = 0; i < size * VXFS_TYPED_PER_BLOCK(ip->i_sb); i++) {  in vxfs_bmap_indir()
142 		bp = sb_bread(ip->i_sb,  in vxfs_bmap_indir()
143 				indir + (i / VXFS_TYPED_PER_BLOCK(ip->i_sb)));  in vxfs_bmap_indir()
147 		typ = ((struct vxfs_typed *)bp->b_data) +  in vxfs_bmap_indir()
148 			(i % VXFS_TYPED_PER_BLOCK(ip->i_sb));  in vxfs_bmap_indir()
149 		off = fs64_to_cpu(sbi, typ->vt_hdr) & VXFS_TYPED_OFFSETMASK;  in vxfs_bmap_indir()
151 		if (block < off) {  in vxfs_bmap_indir()
156 		switch ((u_int32_t)(fs64_to_cpu(sbi, typ->vt_hdr) >>  in vxfs_bmap_indir()
159 			pblock = vxfs_bmap_indir(ip,  in vxfs_bmap_indir()
160 					fs32_to_cpu(sbi, typ->vt_block),  in vxfs_bmap_indir()
161 					fs32_to_cpu(sbi, typ->vt_size),  in vxfs_bmap_indir()
162 					block - off);  in vxfs_bmap_indir()
163 			if (pblock == -2)  in vxfs_bmap_indir()
167 			if ((block - off) >= fs32_to_cpu(sbi, typ->vt_size))  in vxfs_bmap_indir()
169 			pblock = fs32_to_cpu(sbi, typ->vt_block) + block - off;  in vxfs_bmap_indir()
177 			printk(KERN_INFO "block: %llu\tsize: %lld\tdev: %d\n",  in vxfs_bmap_indir()
178 			       fs64_to_cpu(sbi, typ4->vd4_block),  in vxfs_bmap_indir()
179 			       fs64_to_cpu(sbi, typ4->vd4_size),  in vxfs_bmap_indir()
180 			       fs32_to_cpu(sbi, typ4->vd4_dev));  in vxfs_bmap_indir()
185 				__LINE__, fs64_to_cpu(sbi, typ->vt_hdr));  in vxfs_bmap_indir()
199  * vxfs_bmap_typed - bmap for typed extents
200  * @ip:		pointer to the inode we do bmap for
201  * @iblock:	logical block
207  *   The physical block number on success, else Zero.
210 vxfs_bmap_typed(struct inode *ip, long iblock)  in vxfs_bmap_typed()  argument
212 	struct vxfs_inode_info		*vip = VXFS_INO(ip);  in vxfs_bmap_typed()
213 	struct vxfs_sb_info		*sbi = VXFS_SBI(ip->i_sb);  in vxfs_bmap_typed()
218 		struct vxfs_typed	*typ = vip->vii_org.typed + i;  in vxfs_bmap_typed()
219 		u64			hdr = fs64_to_cpu(sbi, typ->vt_hdr);  in vxfs_bmap_typed()
229 			pblock = vxfs_bmap_indir(ip,  in vxfs_bmap_typed()
230 					fs32_to_cpu(sbi, typ->vt_block),  in vxfs_bmap_typed()
231 					fs32_to_cpu(sbi, typ->vt_size),  in vxfs_bmap_typed()
232 					iblock - off);  in vxfs_bmap_typed()
233 			if (pblock == -2)  in vxfs_bmap_typed()
237 			if ((iblock - off) < fs32_to_cpu(sbi, typ->vt_size))  in vxfs_bmap_typed()
238 				return (fs32_to_cpu(sbi, typ->vt_block) +  in vxfs_bmap_typed()
239 						iblock - off);  in vxfs_bmap_typed()
247 			printk(KERN_INFO "block: %llu\tsize: %lld\tdev: %d\n",  in vxfs_bmap_typed()
248 			       fs64_to_cpu(sbi, typ4->vd4_block),  in vxfs_bmap_typed()
249 			       fs64_to_cpu(sbi, typ4->vd4_size),  in vxfs_bmap_typed()
250 			       fs32_to_cpu(sbi, typ4->vd4_dev));  in vxfs_bmap_typed()
262  * vxfs_bmap1 - vxfs-internal bmap operation
263  * @ip:			pointer to the inode we do bmap for
264  * @iblock:		logical block
267  *   vxfs_bmap1 perfoms a logical to physical block mapping
268  *   for vxfs-internal purposes.
271  *   The physical block number on success, else Zero.
274 vxfs_bmap1(struct inode *ip, long iblock)  in vxfs_bmap1()  argument
276 	struct vxfs_inode_info		*vip = VXFS_INO(ip);  in vxfs_bmap1()
279 		return vxfs_bmap_ext4(ip, iblock);  in vxfs_bmap1()
281 		return vxfs_bmap_typed(ip, iblock);  in vxfs_bmap1()
288 			ip->i_ino, vip->vii_orgtype);  in vxfs_bmap1()
293 			ip->i_ino, vip->vii_orgtype);  in vxfs_bmap1()