70 	struct f2fs_inode_info *fi = F2FS_I(inode);  in check_extent_cache()  local
75 	read_lock(&fi->ext.ext_lock);  in check_extent_cache()
76 	if (fi->ext.len == 0) {  in check_extent_cache()
77 		read_unlock(&fi->ext.ext_lock);  in check_extent_cache()
82 	start_fofs = fi->ext.fofs;  in check_extent_cache()
83 	end_fofs = fi->ext.fofs + fi->ext.len - 1;  in check_extent_cache()
84 	start_blkaddr = fi->ext.blk_addr;  in check_extent_cache()
100 		read_unlock(&fi->ext.ext_lock);  in check_extent_cache()
103 	read_unlock(&fi->ext.ext_lock);  in check_extent_cache()
109 	struct f2fs_inode_info *fi = F2FS_I(dn->inode);  in update_extent_cache()  local
119 	write_lock(&fi->ext.ext_lock);  in update_extent_cache()
121 	start_fofs = fi->ext.fofs;  in update_extent_cache()
122 	end_fofs = fi->ext.fofs + fi->ext.len - 1;  in update_extent_cache()
123 	start_blkaddr = fi->ext.blk_addr;  in update_extent_cache()
124 	end_blkaddr = fi->ext.blk_addr + fi->ext.len - 1;  in update_extent_cache()
127 	if (fi->ext.len == 1 && fofs == start_fofs)  in update_extent_cache()
128 		fi->ext.len = 0;  in update_extent_cache()
131 	if (fi->ext.len == 0) {  in update_extent_cache()
133 			fi->ext.fofs = fofs;  in update_extent_cache()
134 			fi->ext.blk_addr = blk_addr;  in update_extent_cache()
135 			fi->ext.len = 1;  in update_extent_cache()
142 		fi->ext.fofs--;  in update_extent_cache()
143 		fi->ext.blk_addr--;  in update_extent_cache()
144 		fi->ext.len++;  in update_extent_cache()
150 		fi->ext.len++;  in update_extent_cache()
155 	if (fi->ext.len > 1 &&  in update_extent_cache()
157 		if ((end_fofs - fofs) < (fi->ext.len >> 1)) {  in update_extent_cache()
158 			fi->ext.len = fofs - start_fofs;  in update_extent_cache()
160 			fi->ext.fofs = fofs + 1;  in update_extent_cache()
161 			fi->ext.blk_addr = start_blkaddr +  in update_extent_cache()
163 			fi->ext.len -= fofs - start_fofs + 1;  in update_extent_cache()
167 	write_unlock(&fi->ext.ext_lock);  in update_extent_cache()
171 	write_unlock(&fi->ext.ext_lock);  in update_extent_cache()