10  * For licensing information, see the file 'LICENCE' in this directory.
20 /* Available compressors are on this list */
53         struct jffs2_compressor *this, *best=NULL;  in jffs2_compress()  local
70                 list_for_each_entry(this, &jffs2_compressor_list, list) {  in jffs2_compress()
72                         if ((!this->compress)||(this->disabled))  in jffs2_compress()
75                         this->usecount++;  in jffs2_compress()
79                         compr_ret = this->compress(data_in, output_buf, datalen, cdatalen, NULL);  in jffs2_compress()
81                         this->usecount--;  in jffs2_compress()
83                                 ret = this->compr;  in jffs2_compress()
84                                 this->stat_compr_blocks++;  in jffs2_compress()
85                                 this->stat_compr_orig_size += *datalen;  in jffs2_compress()
86                                 this->stat_compr_new_size  += *cdatalen;  in jffs2_compress()
97                 list_for_each_entry(this, &jffs2_compressor_list, list) {  in jffs2_compress()
99                         if ((!this->compress)||(this->disabled))  in jffs2_compress()
102                         if ((this->compr_buf_size<orig_dlen)&&(this->compr_buf)) {  in jffs2_compress()
104                                 kfree(this->compr_buf);  in jffs2_compress()
106                                 this->compr_buf_size=0;  in jffs2_compress()
107                                 this->compr_buf=NULL;  in jffs2_compress()
109                         if (!this->compr_buf) {  in jffs2_compress()
118                                         this->compr_buf = tmp_buf;  in jffs2_compress()
119                                         this->compr_buf_size = orig_dlen;  in jffs2_compress()
122                         this->usecount++;  in jffs2_compress()
126 …                     compr_ret = this->compress(data_in, this->compr_buf, datalen, cdatalen, NULL);  in jffs2_compress()
128                         this->usecount--;  in jffs2_compress()
133                                         best = this;  in jffs2_compress()
170         struct jffs2_compressor *this;  in jffs2_decompress()  local
180 		/* This should be special-cased elsewhere, but we might as well deal with it */  in jffs2_decompress()
189                 list_for_each_entry(this, &jffs2_compressor_list, list) {  in jffs2_decompress()
190                         if (comprtype == this->compr) {  in jffs2_decompress()
191                                 this->usecount++;  in jffs2_decompress()
193                                 ret = this->decompress(cdata_in, data_out, cdatalen, datalen, NULL);  in jffs2_decompress()
196 …                         printk(KERN_WARNING "Decompressor \"%s\" returned %d\n", this->name, ret);  in jffs2_decompress()
199                                         this->stat_decompr_blocks++;  in jffs2_decompress()
201                                 this->usecount--;  in jffs2_decompress()
215         struct jffs2_compressor *this;  in jffs2_register_compressor()  local
232         list_for_each_entry(this, &jffs2_compressor_list, list) {  in jffs2_register_compressor()
233                 if (this->priority < comp->priority) {  in jffs2_register_compressor()
234                         list_add(&comp->list, this->list.prev);  in jffs2_register_compressor()
240         D2(list_for_each_entry(this, &jffs2_compressor_list, list) {  in jffs2_register_compressor()
241                 printk(KERN_DEBUG "Compressor \"%s\", prio %d\n", this->name, this->priority);  in jffs2_register_compressor()
251         D2(struct jffs2_compressor *this;)  in jffs2_unregister_compressor()
264         D2(list_for_each_entry(this, &jffs2_compressor_list, list) {  in jffs2_unregister_compressor()
265                 printk(KERN_DEBUG "Compressor \"%s\", prio %d\n", this->name, this->priority);  in jffs2_unregister_compressor()
277         struct jffs2_compressor *this;  in jffs2_list_compressors()  local
281         list_for_each_entry(this, &jffs2_compressor_list, list) {  in jffs2_list_compressors()
282                 act_buf += sprintf(act_buf, "%10s priority:%d ", this->name, this->priority);  in jffs2_list_compressors()
283                 if ((this->disabled)||(!this->compress))  in jffs2_list_compressors()
294         struct jffs2_compressor *this;  in jffs2_stats()  local
304         list_for_each_entry(this, &jffs2_compressor_list, list) {  in jffs2_stats()
305                 act_buf += sprintf(act_buf,"%10s ",this->name);  in jffs2_stats()
306                 if ((this->disabled)||(!this->compress))  in jffs2_stats()
310 …act_buf += sprintf(act_buf,"compr: %d blocks (%d/%d)  decompr: %d blocks ", this->stat_compr_block…  in jffs2_stats()
311                                    this->stat_compr_new_size, this->stat_compr_orig_size,   in jffs2_stats()
312                                    this->stat_decompr_blocks);  in jffs2_stats()
352         struct jffs2_compressor *this;  in jffs2_compressor_Xable()  local
354         list_for_each_entry(this, &jffs2_compressor_list, list) {  in jffs2_compressor_Xable()
355                 if (!strcmp(this->name, name)) {  in jffs2_compressor_Xable()
356                         this->disabled = disabled;  in jffs2_compressor_Xable()
378         struct jffs2_compressor *this,*comp;  in jffs2_set_compressor_priority()  local
380         list_for_each_entry(this, &jffs2_compressor_list, list) {  in jffs2_set_compressor_priority()
381                 if (!strcmp(this->name, name)) {  in jffs2_set_compressor_priority()
382                         this->priority = priority;  in jffs2_set_compressor_priority()
383                         comp = this;  in jffs2_set_compressor_priority()
395         list_for_each_entry(this, &jffs2_compressor_list, list) {  in jffs2_set_compressor_priority()
396                 if (this->priority < comp->priority) {  in jffs2_set_compressor_priority()
397                         list_add(&comp->list, this->list.prev);  in jffs2_set_compressor_priority()