26 		struct z_erofs_lzma *strm;  in z_erofs_lzma_exit()  local
29 		strm = z_erofs_lzma_head;  in z_erofs_lzma_exit()
30 		if (!strm) {  in z_erofs_lzma_exit()
38 		while (strm) {  in z_erofs_lzma_exit()
39 			struct z_erofs_lzma *n = strm->next;  in z_erofs_lzma_exit()
41 			if (strm->state)  in z_erofs_lzma_exit()
42 				xz_dec_microlzma_end(strm->state);  in z_erofs_lzma_exit()
43 			kfree(strm);  in z_erofs_lzma_exit()
45 			strm = n;  in z_erofs_lzma_exit()
59 		struct z_erofs_lzma *strm = kzalloc(sizeof(*strm), GFP_KERNEL);  in z_erofs_lzma_init()  local
61 		if (!strm) {  in z_erofs_lzma_init()
66 		strm->next = z_erofs_lzma_head;  in z_erofs_lzma_init()
67 		z_erofs_lzma_head = strm;  in z_erofs_lzma_init()
80 	struct z_erofs_lzma *strm, *head = NULL;  in z_erofs_load_lzma_config()  local
115 		strm = z_erofs_lzma_head;  in z_erofs_load_lzma_config()
116 		if (!strm) {  in z_erofs_load_lzma_config()
125 		for (last = strm; last->next; last = last->next)  in z_erofs_load_lzma_config()
128 		head = strm;  in z_erofs_load_lzma_config()
133 	for (strm = head; strm; strm = strm->next) {  in z_erofs_load_lzma_config()
134 		if (strm->state)  in z_erofs_load_lzma_config()
135 			xz_dec_microlzma_end(strm->state);  in z_erofs_load_lzma_config()
136 		strm->state = xz_dec_microlzma_alloc(XZ_PREALLOC, dict_size);  in z_erofs_load_lzma_config()
137 		if (!strm->state)  in z_erofs_load_lzma_config()
161 	struct z_erofs_lzma *strm;  in z_erofs_lzma_decompress()  local
179 	strm = z_erofs_lzma_head;  in z_erofs_lzma_decompress()
180 	if (!strm) {  in z_erofs_lzma_decompress()
185 	z_erofs_lzma_head = strm->next;  in z_erofs_lzma_decompress()
191 	xz_dec_microlzma_reset(strm->state, inlen, outlen,  in z_erofs_lzma_decompress()
194 	strm->buf.in = kin + rq->pageofs_in;  in z_erofs_lzma_decompress()
195 	strm->buf.in_pos = 0;  in z_erofs_lzma_decompress()
196 	strm->buf.in_size = min_t(u32, inlen, PAGE_SIZE - rq->pageofs_in);  in z_erofs_lzma_decompress()
197 	inlen -= strm->buf.in_size;  in z_erofs_lzma_decompress()
198 	strm->buf.out = NULL;  in z_erofs_lzma_decompress()
199 	strm->buf.out_pos = 0;  in z_erofs_lzma_decompress()
200 	strm->buf.out_size = 0;  in z_erofs_lzma_decompress()
205 		if (strm->buf.out_pos == strm->buf.out_size) {  in z_erofs_lzma_decompress()
206 			if (strm->buf.out) {  in z_erofs_lzma_decompress()
208 				strm->buf.out = NULL;  in z_erofs_lzma_decompress()
216 			strm->buf.out_pos = 0;  in z_erofs_lzma_decompress()
217 			strm->buf.out_size = min_t(u32, outlen,  in z_erofs_lzma_decompress()
219 			outlen -= strm->buf.out_size;  in z_erofs_lzma_decompress()
224 				strm->buf.out = kmap(rq->out[no]) + pageofs;  in z_erofs_lzma_decompress()
226 		} else if (strm->buf.in_pos == strm->buf.in_size) {  in z_erofs_lzma_decompress()
234 			strm->buf.in_pos = 0;  in z_erofs_lzma_decompress()
235 			strm->buf.in_size = min_t(u32, inlen, PAGE_SIZE);  in z_erofs_lzma_decompress()
236 			inlen -= strm->buf.in_size;  in z_erofs_lzma_decompress()
238 			strm->buf.in = kin;  in z_erofs_lzma_decompress()
249 			memcpy(strm->bounce, strm->buf.in, strm->buf.in_size);  in z_erofs_lzma_decompress()
250 			strm->buf.in = strm->bounce;  in z_erofs_lzma_decompress()
267 		xz_err = xz_dec_microlzma_run(strm->state, &strm->buf);  in z_erofs_lzma_decompress()
268 		DBG_BUGON(strm->buf.out_pos > strm->buf.out_size);  in z_erofs_lzma_decompress()
269 		DBG_BUGON(strm->buf.in_pos > strm->buf.in_size);  in z_erofs_lzma_decompress()
280 	if (no < nrpages_out && strm->buf.out)  in z_erofs_lzma_decompress()
286 	strm->next = z_erofs_lzma_head;  in z_erofs_lzma_decompress()
287 	z_erofs_lzma_head = strm;  in z_erofs_lzma_decompress()