54 void ocfs2_extent_map_init(struct inode *inode)  in ocfs2_extent_map_init()  argument
56 	struct ocfs2_inode_info *oi = OCFS2_I(inode);  in ocfs2_extent_map_init()
83 static int ocfs2_extent_map_lookup(struct inode *inode, unsigned int cpos,  in ocfs2_extent_map_lookup()  argument
88 	struct ocfs2_inode_info *oi = OCFS2_I(inode);  in ocfs2_extent_map_lookup()
114 void ocfs2_extent_map_trunc(struct inode *inode, unsigned int cpos)  in ocfs2_extent_map_trunc()  argument
117 	struct ocfs2_inode_info *oi = OCFS2_I(inode);  in ocfs2_extent_map_trunc()
227 void ocfs2_extent_map_insert_rec(struct inode *inode,  in ocfs2_extent_map_insert_rec()  argument
230 	struct ocfs2_inode_info *oi = OCFS2_I(inode);  in ocfs2_extent_map_insert_rec()
236 	ins.ei_phys = ocfs2_blocks_to_clusters(inode->i_sb,  in ocfs2_extent_map_insert_rec()
288 static int ocfs2_last_eb_is_empty(struct inode *inode,  in ocfs2_last_eb_is_empty()  argument
297 	ret = ocfs2_read_extent_block(INODE_CACHE(inode), last_eb_blk, &eb_bh);  in ocfs2_last_eb_is_empty()
307 		ocfs2_error(inode->i_sb,  in ocfs2_last_eb_is_empty()
309 			    "leaf block %llu\n", inode->i_ino,  in ocfs2_last_eb_is_empty()
410 static int ocfs2_get_clusters_nocache(struct inode *inode,  in ocfs2_get_clusters_nocache()  argument
432 		ret = ocfs2_find_leaf(INODE_CACHE(inode), el, v_cluster,  in ocfs2_get_clusters_nocache()
443 			ocfs2_error(inode->i_sb,  in ocfs2_get_clusters_nocache()
445 				    "leaf block %llu\n", inode->i_ino,  in ocfs2_get_clusters_nocache()
460 			ret = ocfs2_figure_hole_clusters(INODE_CACHE(inode),  in ocfs2_get_clusters_nocache()
478 		ocfs2_error(inode->i_sb, "Inode %lu has bad extent "  in ocfs2_get_clusters_nocache()
479 			    "record (%u, %u, 0)", inode->i_ino,  in ocfs2_get_clusters_nocache()
510 				ret = ocfs2_last_eb_is_empty(inode, di);  in ocfs2_get_clusters_nocache()
543 int ocfs2_xattr_get_clusters(struct inode *inode, u32 v_cluster,  in ocfs2_xattr_get_clusters()  argument
555 		ret = ocfs2_find_leaf(INODE_CACHE(inode), el, v_cluster,  in ocfs2_xattr_get_clusters()
566 			ocfs2_error(inode->i_sb,  in ocfs2_xattr_get_clusters()
568 				    "xattr leaf block %llu\n", inode->i_ino,  in ocfs2_xattr_get_clusters()
585 			ocfs2_error(inode->i_sb, "Inode %lu has bad extent "  in ocfs2_xattr_get_clusters()
586 				    "record (%u, %u, 0) in xattr", inode->i_ino,  in ocfs2_xattr_get_clusters()
593 		*p_cluster = ocfs2_blocks_to_clusters(inode->i_sb,  in ocfs2_xattr_get_clusters()
608 int ocfs2_get_clusters(struct inode *inode, u32 v_cluster,  in ocfs2_get_clusters()  argument
617 	if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) {  in ocfs2_get_clusters()
623 	ret = ocfs2_extent_map_lookup(inode, v_cluster, p_cluster,  in ocfs2_get_clusters()
628 	ret = ocfs2_read_inode_block(inode, &di_bh);  in ocfs2_get_clusters()
634 	ret = ocfs2_get_clusters_nocache(inode, di_bh, v_cluster, &hole_len,  in ocfs2_get_clusters()
652 		ocfs2_relative_extent_offsets(inode->i_sb, v_cluster, &rec,  in ocfs2_get_clusters()
656 		ocfs2_extent_map_insert_rec(inode, &rec);  in ocfs2_get_clusters()
671 int ocfs2_extent_map_get_blocks(struct inode *inode, u64 v_blkno, u64 *p_blkno,  in ocfs2_extent_map_get_blocks()  argument
675 	int bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);  in ocfs2_extent_map_get_blocks()
679 	cpos = ocfs2_blocks_to_clusters(inode->i_sb, v_blkno);  in ocfs2_extent_map_get_blocks()
681 	ret = ocfs2_get_clusters(inode, cpos, &p_cluster, &num_clusters,  in ocfs2_extent_map_get_blocks()
692 		boff = ocfs2_clusters_to_blocks(inode->i_sb, p_cluster);  in ocfs2_extent_map_get_blocks()
699 		*ret_count = ocfs2_clusters_to_blocks(inode->i_sb, num_clusters);  in ocfs2_extent_map_get_blocks()
713 static int ocfs2_fiemap_inline(struct inode *inode, struct buffer_head *di_bh,  in ocfs2_fiemap_inline()  argument
722 	struct ocfs2_inode_info *oi = OCFS2_I(inode);  in ocfs2_fiemap_inline()
725 	if (ocfs2_inode_is_fast_symlink(inode))  in ocfs2_fiemap_inline()
726 		id_count = ocfs2_fast_symlink_chars(inode->i_sb);  in ocfs2_fiemap_inline()
731 		phys = oi->ip_blkno << inode->i_sb->s_blocksize_bits;  in ocfs2_fiemap_inline()
732 		if (ocfs2_inode_is_fast_symlink(inode))  in ocfs2_fiemap_inline()
749 int ocfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,  in ocfs2_fiemap()  argument
755 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_fiemap()
764 	ret = ocfs2_inode_lock(inode, &di_bh, 0);  in ocfs2_fiemap()
770 	down_read(&OCFS2_I(inode)->ip_alloc_sem);  in ocfs2_fiemap()
775 	if ((OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) ||  in ocfs2_fiemap()
776 	    ocfs2_inode_is_fast_symlink(inode)) {  in ocfs2_fiemap()
777 		ret = ocfs2_fiemap_inline(inode, di_bh, fieinfo, map_start);  in ocfs2_fiemap()
782 	mapping_end = ocfs2_clusters_for_bytes(inode->i_sb,  in ocfs2_fiemap()
788 		ret = ocfs2_get_clusters_nocache(inode, di_bh, cpos,  in ocfs2_fiemap()
825 	up_read(&OCFS2_I(inode)->ip_alloc_sem);  in ocfs2_fiemap()
827 	ocfs2_inode_unlock(inode, 0);  in ocfs2_fiemap()
835 	struct inode *inode = file->f_mapping->host;  in ocfs2_seek_data_hole_offset()  local
838 	u16 cs_bits = OCFS2_SB(inode->i_sb)->s_clustersize_bits;  in ocfs2_seek_data_hole_offset()
846 	ret = ocfs2_inode_lock(inode, &di_bh, 0);  in ocfs2_seek_data_hole_offset()
852 	down_read(&OCFS2_I(inode)->ip_alloc_sem);  in ocfs2_seek_data_hole_offset()
854 	if (*offset >= i_size_read(inode)) {  in ocfs2_seek_data_hole_offset()
859 	if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) {  in ocfs2_seek_data_hole_offset()
861 			*offset = i_size_read(inode);  in ocfs2_seek_data_hole_offset()
867 	cend = ocfs2_clusters_for_bytes(inode->i_sb, i_size_read(inode));  in ocfs2_seek_data_hole_offset()
870 		ret = ocfs2_get_clusters_nocache(inode, di_bh, cpos, &hole_size,  in ocfs2_seek_data_hole_offset()
906 		if ((extoff + extlen) > i_size_read(inode))  in ocfs2_seek_data_hole_offset()
907 			extlen = i_size_read(inode) - extoff;  in ocfs2_seek_data_hole_offset()
920 	up_read(&OCFS2_I(inode)->ip_alloc_sem);  in ocfs2_seek_data_hole_offset()
922 	ocfs2_inode_unlock(inode, 0);  in ocfs2_seek_data_hole_offset()
927 int ocfs2_read_virt_blocks(struct inode *inode, u64 v_block, int nr,  in ocfs2_read_virt_blocks()  argument
937 	     inode, (unsigned long long)v_block, nr, bhs, flags,  in ocfs2_read_virt_blocks()
940 	if (((v_block + nr - 1) << inode->i_sb->s_blocksize_bits) >=  in ocfs2_read_virt_blocks()
941 	    i_size_read(inode)) {  in ocfs2_read_virt_blocks()
947 		down_read(&OCFS2_I(inode)->ip_alloc_sem);  in ocfs2_read_virt_blocks()
948 		rc = ocfs2_extent_map_get_blocks(inode, v_block + done,  in ocfs2_read_virt_blocks()
950 		up_read(&OCFS2_I(inode)->ip_alloc_sem);  in ocfs2_read_virt_blocks()
960 			     (unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_read_virt_blocks()
962 			     inode->i_sb->s_blocksize_bits);  in ocfs2_read_virt_blocks()
981 		rc = ocfs2_read_blocks(INODE_CACHE(inode), p_block, count,  in ocfs2_read_virt_blocks()