49 	struct squashfs_sb_info *msblk = sb->s_fs_info;  in get_block_length()  local
56 	if (msblk->devblksize - *offset == 1) {  in get_block_length()
85 	struct squashfs_sb_info *msblk = sb->s_fs_info;  in squashfs_read_data()  local
87 	int offset = index & ((1 << msblk->devblksize_log2) - 1);  in squashfs_read_data()
88 	u64 cur_index = index >> msblk->devblksize_log2;  in squashfs_read_data()
92 	bh = kcalloc((msblk->block_size >> msblk->devblksize_log2) + 1,  in squashfs_read_data()
111 				(index + length) > msblk->bytes_used)  in squashfs_read_data()
118 			bytes += msblk->devblksize;  in squashfs_read_data()
125 		if ((index + 2) > msblk->bytes_used)  in squashfs_read_data()
133 		bytes = msblk->devblksize - offset;  in squashfs_read_data()
143 					(index + length) > msblk->bytes_used)  in squashfs_read_data()
150 			bytes += msblk->devblksize;  in squashfs_read_data()
162 		mutex_lock(&msblk->read_data_mutex);  in squashfs_read_data()
164 		msblk->stream.avail_out = 0;  in squashfs_read_data()
165 		msblk->stream.avail_in = 0;  in squashfs_read_data()
169 			if (msblk->stream.avail_in == 0 && k < b) {  in squashfs_read_data()
170 				avail = min(bytes, msblk->devblksize - offset);  in squashfs_read_data()
182 				msblk->stream.next_in = bh[k]->b_data + offset;  in squashfs_read_data()
183 				msblk->stream.avail_in = avail;  in squashfs_read_data()
187 			if (msblk->stream.avail_out == 0) {  in squashfs_read_data()
188 				msblk->stream.next_out = buffer[page++];  in squashfs_read_data()
189 				msblk->stream.avail_out = PAGE_CACHE_SIZE;  in squashfs_read_data()
193 				zlib_err = zlib_inflateInit(&msblk->stream);  in squashfs_read_data()
204 			zlib_err = zlib_inflate(&msblk->stream, Z_NO_FLUSH);  in squashfs_read_data()
206 			if (msblk->stream.avail_in == 0 && k < b)  in squashfs_read_data()
214 				msblk->stream.avail_in,  in squashfs_read_data()
215 				msblk->stream.avail_out);  in squashfs_read_data()
219 		zlib_err = zlib_inflateEnd(&msblk->stream);  in squashfs_read_data()
225 		length = msblk->stream.total_out;  in squashfs_read_data()
226 		mutex_unlock(&msblk->read_data_mutex);  in squashfs_read_data()
240 			in = min(bytes, msblk->devblksize - offset);  in squashfs_read_data()
264 	mutex_unlock(&msblk->read_data_mutex);  in squashfs_read_data()