503 	struct buffer_head		*bh;  in __read_extent_tree_block()  local
506 	bh = sb_getblk_gfp(inode->i_sb, pblk, __GFP_MOVABLE | GFP_NOFS);  in __read_extent_tree_block()
507 	if (unlikely(!bh))  in __read_extent_tree_block()
510 	if (!bh_uptodate_or_lock(bh)) {  in __read_extent_tree_block()
512 		err = bh_submit_read(bh);  in __read_extent_tree_block()
516 	if (buffer_verified(bh) && !(flags & EXT4_EX_FORCE_CACHE))  in __read_extent_tree_block()
517 		return bh;  in __read_extent_tree_block()
519 			       ext_block_hdr(bh), depth, pblk);  in __read_extent_tree_block()
522 	set_buffer_verified(bh);  in __read_extent_tree_block()
527 		struct ext4_extent_header *eh = ext_block_hdr(bh);  in __read_extent_tree_block()
549 	return bh;  in __read_extent_tree_block()
551 	put_bh(bh);  in __read_extent_tree_block()
568 	struct buffer_head *bh;  in ext4_ext_precache()  local
604 		bh = read_extent_tree_block(inode,  in ext4_ext_precache()
608 		if (IS_ERR(bh)) {  in ext4_ext_precache()
609 			ret = PTR_ERR(bh);  in ext4_ext_precache()
613 		path[i].p_bh = bh;  in ext4_ext_precache()
614 		path[i].p_hdr = ext_block_hdr(bh);  in ext4_ext_precache()
862 	struct buffer_head *bh;  in ext4_find_extent()  local
899 		bh = read_extent_tree_block(inode, path[ppos].p_block, --i,  in ext4_find_extent()
901 		if (unlikely(IS_ERR(bh))) {  in ext4_find_extent()
902 			ret = PTR_ERR(bh);  in ext4_find_extent()
906 		eh = ext_block_hdr(bh);  in ext4_find_extent()
909 			put_bh(bh);  in ext4_find_extent()
915 		path[ppos].p_bh = bh;  in ext4_find_extent()
1027 	struct buffer_head *bh = NULL;  in ext4_ext_split()  local
1091 	bh = sb_getblk_gfp(inode->i_sb, newblock, __GFP_MOVABLE | GFP_NOFS);  in ext4_ext_split()
1092 	if (unlikely(!bh)) {  in ext4_ext_split()
1096 	lock_buffer(bh);  in ext4_ext_split()
1098 	err = ext4_journal_get_create_access(handle, bh);  in ext4_ext_split()
1102 	neh = ext_block_hdr(bh);  in ext4_ext_split()
1128 	set_buffer_uptodate(bh);  in ext4_ext_split()
1129 	unlock_buffer(bh);  in ext4_ext_split()
1131 	err = ext4_handle_dirty_metadata(handle, inode, bh);  in ext4_ext_split()
1134 	brelse(bh);  in ext4_ext_split()
1135 	bh = NULL;  in ext4_ext_split()
1164 		bh = sb_getblk(inode->i_sb, newblock);  in ext4_ext_split()
1165 		if (unlikely(!bh)) {  in ext4_ext_split()
1169 		lock_buffer(bh);  in ext4_ext_split()
1171 		err = ext4_journal_get_create_access(handle, bh);  in ext4_ext_split()
1175 		neh = ext_block_hdr(bh);  in ext4_ext_split()
1207 		set_buffer_uptodate(bh);  in ext4_ext_split()
1208 		unlock_buffer(bh);  in ext4_ext_split()
1210 		err = ext4_handle_dirty_metadata(handle, inode, bh);  in ext4_ext_split()
1213 		brelse(bh);  in ext4_ext_split()
1214 		bh = NULL;  in ext4_ext_split()
1235 	if (bh) {  in ext4_ext_split()
1236 		if (buffer_locked(bh))  in ext4_ext_split()
1237 			unlock_buffer(bh);  in ext4_ext_split()
1238 		brelse(bh);  in ext4_ext_split()
1267 	struct buffer_head *bh;  in ext4_ext_grow_indepth()  local
1285 	bh = sb_getblk_gfp(inode->i_sb, newblock, __GFP_MOVABLE | GFP_NOFS);  in ext4_ext_grow_indepth()
1286 	if (unlikely(!bh))  in ext4_ext_grow_indepth()
1288 	lock_buffer(bh);  in ext4_ext_grow_indepth()
1290 	err = ext4_journal_get_create_access(handle, bh);  in ext4_ext_grow_indepth()
1292 		unlock_buffer(bh);  in ext4_ext_grow_indepth()
1297 	memmove(bh->b_data, EXT4_I(inode)->i_data,  in ext4_ext_grow_indepth()
1301 	neh = ext_block_hdr(bh);  in ext4_ext_grow_indepth()
1310 	set_buffer_uptodate(bh);  in ext4_ext_grow_indepth()
1311 	unlock_buffer(bh);  in ext4_ext_grow_indepth()
1313 	err = ext4_handle_dirty_metadata(handle, inode, bh);  in ext4_ext_grow_indepth()
1335 	brelse(bh);  in ext4_ext_grow_indepth()
1487 	struct buffer_head *bh = NULL;  in ext4_ext_search_right()  local
1561 		bh = read_extent_tree_block(inode, block,  in ext4_ext_search_right()
1563 		if (IS_ERR(bh))  in ext4_ext_search_right()
1564 			return PTR_ERR(bh);  in ext4_ext_search_right()
1565 		eh = ext_block_hdr(bh);  in ext4_ext_search_right()
1568 		put_bh(bh);  in ext4_ext_search_right()
1571 	bh = read_extent_tree_block(inode, block, path->p_depth - depth, 0);  in ext4_ext_search_right()
1572 	if (IS_ERR(bh))  in ext4_ext_search_right()
1573 		return PTR_ERR(bh);  in ext4_ext_search_right()
1574 	eh = ext_block_hdr(bh);  in ext4_ext_search_right()
1580 	if (bh)  in ext4_ext_search_right()
1581 		put_bh(bh);  in ext4_ext_search_right()
2963 			struct buffer_head *bh;  in ext4_ext_remove_space()  local
2968 			bh = read_extent_tree_block(inode,  in ext4_ext_remove_space()
2971 			if (IS_ERR(bh)) {  in ext4_ext_remove_space()
2973 				err = PTR_ERR(bh);  in ext4_ext_remove_space()
2983 			path[i + 1].p_bh = bh;  in ext4_ext_remove_space()
5125 		physical = (__u64)iloc.bh->b_blocknr << blockbits;  in ext4_xattr_fiemap()
5131 		brelse(iloc.bh);  in ext4_xattr_fiemap()