fs/affs/file.c

160 	/* inline the simplest case: same extended block as last time */
181 		/* read the next extended block from the current one */
194 		/* we seek back to the file header block */
202 		/* allocate a new extended block */
205 		/* get previous extended block */
275 	/* finally read the right extended block */
283 	/* release old cached extended block and store the new one */
297 affs_get_block(struct inode *inode, sector_t block, struct buffer_head *bh_result, int create)
304 		 (unsigned long long)block);
306 	BUG_ON(block > (sector_t)0x7fffffffUL);
308 	if (block >= AFFS_I(inode)->i_blkcnt) {
309 		if (block > AFFS_I(inode)->i_blkcnt || !create)
317 	ext = (u32)block / AFFS_SB(sb)->s_hashsize;
318 	block -= ext * AFFS_SB(sb)->s_hashsize;
322 	map_bh(bh_result, sb, (sector_t)be32_to_cpu(AFFS_BLOCK(sb, ext_bh, block)));
332 		/* store new block */
335 				     "block already set (%llx)",
337 		AFFS_BLOCK(sb, ext_bh, block) = cpu_to_be32(blocknr);
338 		AFFS_HEAD(ext_bh)->block_count = cpu_to_be32(block + 1);
342 		if (!block) {
343 			/* insert first block into header block */
346 				affs_warning(sb, "get_block", "first block already set (%d)", tmp);
358 	affs_error(inode->i_sb, "get_block", "strange block request %llu",
359 		   (unsigned long long)block);
452 static sector_t _affs_bmap(struct address_space *mapping, sector_t block)
454 	return generic_block_bmap(mapping,block,affs_get_block);
470 affs_bread_ino(struct inode *inode, int block, int create)
476 	err = affs_get_block(inode, block, &tmp_bh, create);
489 affs_getzeroblk_ino(struct inode *inode, int block)
495 	err = affs_get_block(inode, block, &tmp_bh, 1);
508 affs_getemptyblk_ino(struct inode *inode, int block)
514 	err = affs_get_block(inode, block, &tmp_bh, 1);
610 					     "next block already set for %d (%d)",
760 						     "next block already set for %d (%d)",
794 						     "next block already set for %d (%d)",
904 			     "unexpected read error for ext block %u (%ld)",
952 					     "unexpected read error for last block %u (%ld)",