Lines Matching defs:cc
52 int (*init_compress_ctx)(struct compress_ctx *cc);
53 void (*destroy_compress_ctx)(struct compress_ctx *cc);
54 int (*compress_pages)(struct compress_ctx *cc);
61 static unsigned int offset_in_cluster(struct compress_ctx *cc, pgoff_t index)
63 return index & (cc->cluster_size - 1);
66 static pgoff_t cluster_idx(struct compress_ctx *cc, pgoff_t index)
68 return index >> cc->log_cluster_size;
71 static pgoff_t start_idx_of_cluster(struct compress_ctx *cc)
73 return cc->cluster_idx << cc->log_cluster_size;
102 static void f2fs_drop_rpages(struct compress_ctx *cc, int len, bool unlock)
107 if (!cc->rpages[i])
110 unlock_page(cc->rpages[i]);
112 put_page(cc->rpages[i]);
116 static void f2fs_put_rpages(struct compress_ctx *cc)
118 f2fs_drop_rpages(cc, cc->cluster_size, false);
121 static void f2fs_unlock_rpages(struct compress_ctx *cc, int len)
123 f2fs_drop_rpages(cc, len, true);
126 static void f2fs_put_rpages_wbc(struct compress_ctx *cc,
131 for (i = 0; i < cc->cluster_size; i++) {
132 if (!cc->rpages[i])
135 redirty_page_for_writepage(wbc, cc->rpages[i]);
136 f2fs_put_page(cc->rpages[i], unlock);
145 int f2fs_init_compress_ctx(struct compress_ctx *cc)
147 if (cc->rpages)
150 cc->rpages = page_array_alloc(cc->inode, cc->cluster_size);
151 return cc->rpages ? 0 : -ENOMEM;
154 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse)
156 page_array_free(cc->inode, cc->rpages, cc->cluster_size);
157 cc->rpages = NULL;
158 cc->nr_rpages = 0;
159 cc->nr_cpages = 0;
160 cc->valid_nr_cpages = 0;
162 cc->cluster_idx = NULL_CLUSTER;
165 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct folio *folio)
169 if (!f2fs_cluster_can_merge_page(cc, folio->index))
170 f2fs_bug_on(F2FS_I_SB(cc->inode), 1);
172 cluster_ofs = offset_in_cluster(cc, folio->index);
173 cc->rpages[cluster_ofs] = folio_page(folio, 0);
174 cc->nr_rpages++;
175 cc->cluster_idx = cluster_idx(cc, folio->index);
179 static int lzo_init_compress_ctx(struct compress_ctx *cc)
181 cc->private = f2fs_kvmalloc(F2FS_I_SB(cc->inode),
183 if (!cc->private)
186 cc->clen = lzo1x_worst_compress(PAGE_SIZE << cc->log_cluster_size);
190 static void lzo_destroy_compress_ctx(struct compress_ctx *cc)
192 kvfree(cc->private);
193 cc->private = NULL;
196 static int lzo_compress_pages(struct compress_ctx *cc)
200 ret = lzo1x_1_compress(cc->rbuf, cc->rlen, cc->cbuf->cdata,
201 &cc->clen, cc->private);
203 f2fs_err_ratelimited(F2FS_I_SB(cc->inode),
240 static int lz4_init_compress_ctx(struct compress_ctx *cc)
245 if (F2FS_I(cc->inode)->i_compress_level)
249 cc->private = f2fs_kvmalloc(F2FS_I_SB(cc->inode), size, GFP_NOFS);
250 if (!cc->private)
254 * we do not change cc->clen to LZ4_compressBound(inputsize) to
258 cc->clen = cc->rlen - PAGE_SIZE - COMPRESS_HEADER_SIZE;
262 static void lz4_destroy_compress_ctx(struct compress_ctx *cc)
264 kvfree(cc->private);
265 cc->private = NULL;
268 static int lz4_compress_pages(struct compress_ctx *cc)
271 unsigned char level = F2FS_I(cc->inode)->i_compress_level;
274 len = LZ4_compress_default(cc->rbuf, cc->cbuf->cdata, cc->rlen,
275 cc->clen, cc->private);
278 len = LZ4_compress_HC(cc->rbuf, cc->cbuf->cdata, cc->rlen,
279 cc->clen, level, cc->private);
286 cc->clen = len;
330 static int zstd_init_compress_ctx(struct compress_ctx *cc)
336 unsigned char level = F2FS_I(cc->inode)->i_compress_level;
342 params = zstd_get_params(level, cc->rlen);
345 workspace = f2fs_kvmalloc(F2FS_I_SB(cc->inode),
352 f2fs_err_ratelimited(F2FS_I_SB(cc->inode),
358 cc->private = workspace;
359 cc->private2 = stream;
361 cc->clen = cc->rlen - PAGE_SIZE - COMPRESS_HEADER_SIZE;
365 static void zstd_destroy_compress_ctx(struct compress_ctx *cc)
367 kvfree(cc->private);
368 cc->private = NULL;
369 cc->private2 = NULL;
372 static int zstd_compress_pages(struct compress_ctx *cc)
374 zstd_cstream *stream = cc->private2;
377 int src_size = cc->rlen;
382 inbuf.src = cc->rbuf;
386 outbuf.dst = cc->cbuf->cdata;
391 f2fs_err_ratelimited(F2FS_I_SB(cc->inode),
399 f2fs_err_ratelimited(F2FS_I_SB(cc->inode),
412 cc->clen = outbuf.pos;
504 static int lzorle_compress_pages(struct compress_ctx *cc)
508 ret = lzorle1x_1_compress(cc->rbuf, cc->rlen, cc->cbuf->cdata,
509 &cc->clen, cc->private);
511 f2fs_err_ratelimited(F2FS_I_SB(cc->inode),
620 static int f2fs_compress_pages(struct compress_ctx *cc)
622 struct f2fs_inode_info *fi = F2FS_I(cc->inode);
629 trace_f2fs_compress_pages_start(cc->inode, cc->cluster_idx,
630 cc->cluster_size, fi->i_compress_algorithm);
633 ret = cops->init_compress_ctx(cc);
638 max_len = COMPRESS_HEADER_SIZE + cc->clen;
639 cc->nr_cpages = DIV_ROUND_UP(max_len, PAGE_SIZE);
640 cc->valid_nr_cpages = cc->nr_cpages;
642 cc->cpages = page_array_alloc(cc->inode, cc->nr_cpages);
643 if (!cc->cpages) {
648 for (i = 0; i < cc->nr_cpages; i++)
649 cc->cpages[i] = f2fs_compress_alloc_page();
651 cc->rbuf = f2fs_vmap(cc->rpages, cc->cluster_size);
652 if (!cc->rbuf) {
657 cc->cbuf = f2fs_vmap(cc->cpages, cc->nr_cpages);
658 if (!cc->cbuf) {
663 ret = cops->compress_pages(cc);
667 max_len = PAGE_SIZE * (cc->cluster_size - 1) - COMPRESS_HEADER_SIZE;
669 if (cc->clen > max_len) {
674 cc->cbuf->clen = cpu_to_le32(cc->clen);
677 chksum = f2fs_crc32(F2FS_I_SB(cc->inode),
678 cc->cbuf->cdata, cc->clen);
679 cc->cbuf->chksum = cpu_to_le32(chksum);
682 cc->cbuf->reserved[i] = cpu_to_le32(0);
684 new_nr_cpages = DIV_ROUND_UP(cc->clen + COMPRESS_HEADER_SIZE, PAGE_SIZE);
687 memset(&cc->cbuf->cdata[cc->clen], 0,
689 (cc->clen + COMPRESS_HEADER_SIZE));
691 vm_unmap_ram(cc->cbuf, cc->nr_cpages);
692 vm_unmap_ram(cc->rbuf, cc->cluster_size);
694 for (i = new_nr_cpages; i < cc->nr_cpages; i++) {
695 f2fs_compress_free_page(cc->cpages[i]);
696 cc->cpages[i] = NULL;
700 cops->destroy_compress_ctx(cc);
702 cc->valid_nr_cpages = new_nr_cpages;
704 trace_f2fs_compress_pages_end(cc->inode, cc->cluster_idx,
705 cc->clen, ret);
709 vm_unmap_ram(cc->cbuf, cc->nr_cpages);
711 vm_unmap_ram(cc->rbuf, cc->cluster_size);
713 for (i = 0; i < cc->nr_cpages; i++) {
714 if (cc->cpages[i])
715 f2fs_compress_free_page(cc->cpages[i]);
717 page_array_free(cc->inode, cc->cpages, cc->nr_cpages);
718 cc->cpages = NULL;
721 cops->destroy_compress_ctx(cc);
723 trace_f2fs_compress_pages_end(cc->inode, cc->cluster_idx,
724 cc->clen, ret);
822 static bool is_page_in_cluster(struct compress_ctx *cc, pgoff_t index)
824 if (cc->cluster_idx == NULL_CLUSTER)
826 return cc->cluster_idx == cluster_idx(cc, index);
829 bool f2fs_cluster_is_empty(struct compress_ctx *cc)
831 return cc->nr_rpages == 0;
834 static bool f2fs_cluster_is_full(struct compress_ctx *cc)
836 return cc->cluster_size == cc->nr_rpages;
839 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index)
841 if (f2fs_cluster_is_empty(cc))
843 return is_page_in_cluster(cc, index);
846 bool f2fs_all_cluster_page_ready(struct compress_ctx *cc, struct page **pages,
856 if (uptodate && (pgidx % cc->cluster_size))
859 if (nr_pages - index < cc->cluster_size)
862 for (; i < cc->cluster_size; i++) {
874 static bool cluster_has_invalid_data(struct compress_ctx *cc)
876 loff_t i_size = i_size_read(cc->inode);
880 for (i = 0; i < cc->cluster_size; i++) {
881 struct page *page = cc->rpages[i];
883 f2fs_bug_on(F2FS_I_SB(cc->inode), !page);
998 static int f2fs_compressed_blocks(struct compress_ctx *cc)
1000 return __f2fs_cluster_blocks(cc->inode, cc->cluster_idx,
1029 static bool cluster_may_compress(struct compress_ctx *cc)
1031 if (!f2fs_need_compress_data(cc->inode))
1033 if (f2fs_is_atomic_file(cc->inode))
1035 if (!f2fs_cluster_is_full(cc))
1037 if (unlikely(f2fs_cp_error(F2FS_I_SB(cc->inode))))
1039 return !cluster_has_invalid_data(cc);
1042 static void set_cluster_writeback(struct compress_ctx *cc)
1046 for (i = 0; i < cc->cluster_size; i++) {
1047 if (cc->rpages[i])
1048 set_page_writeback(cc->rpages[i]);
1052 static void cancel_cluster_writeback(struct compress_ctx *cc,
1059 f2fs_submit_merged_write(F2FS_I_SB(cc->inode), DATA);
1061 (cc->valid_nr_cpages - submitted + 1))
1066 for (i = 0; i < cc->cluster_size; i++) {
1068 inode_inc_dirty_pages(cc->inode);
1069 lock_page(cc->rpages[i]);
1071 clear_page_private_gcing(cc->rpages[i]);
1072 if (folio_test_writeback(page_folio(cc->rpages[i])))
1073 end_page_writeback(cc->rpages[i]);
1077 static void set_cluster_dirty(struct compress_ctx *cc)
1081 for (i = 0; i < cc->cluster_size; i++)
1082 if (cc->rpages[i]) {
1083 set_page_dirty(cc->rpages[i]);
1084 set_page_private_gcing(cc->rpages[i]);
1088 static int prepare_compress_overwrite(struct compress_ctx *cc,
1091 struct f2fs_sb_info *sbi = F2FS_I_SB(cc->inode);
1092 struct address_space *mapping = cc->inode->i_mapping;
1096 pgoff_t start_idx = start_idx_of_cluster(cc);
1100 ret = f2fs_is_compressed_cluster(cc->inode, start_idx);
1104 ret = f2fs_init_compress_ctx(cc);
1109 for (i = 0; i < cc->cluster_size; i++) {
1120 f2fs_compress_ctx_add_page(cc, page_folio(page));
1123 if (!f2fs_cluster_is_empty(cc)) {
1126 ret = f2fs_read_multi_pages(cc, &bio, cc->cluster_size,
1128 f2fs_put_rpages(cc);
1129 f2fs_destroy_compress_ctx(cc, true);
1135 ret = f2fs_init_compress_ctx(cc);
1140 for (i = 0; i < cc->cluster_size; i++) {
1141 f2fs_bug_on(sbi, cc->rpages[i]);
1150 f2fs_compress_ctx_add_page(cc, page_folio(page));
1154 f2fs_put_rpages(cc);
1155 f2fs_unlock_rpages(cc, i + 1);
1156 f2fs_destroy_compress_ctx(cc, true);
1162 *fsdata = cc->rpages;
1163 *pagep = cc->rpages[offset_in_cluster(cc, index)];
1164 return cc->cluster_size;
1168 f2fs_put_rpages(cc);
1169 f2fs_unlock_rpages(cc, i);
1170 f2fs_destroy_compress_ctx(cc, true);
1178 struct compress_ctx cc = {
1187 return prepare_compress_overwrite(&cc, pagep, index, fsdata);
1194 struct compress_ctx cc = {
1200 struct folio *folio = page_folio(cc.rpages[0]);
1204 set_cluster_dirty(&cc);
1206 f2fs_put_rpages_wbc(&cc, NULL, false, 1);
1207 f2fs_destroy_compress_ctx(&cc, false);
1262 static int f2fs_write_compressed_pages(struct compress_ctx *cc,
1267 struct inode *inode = cc->inode;
1272 .ino = cc->inode->i_ino,
1282 .encrypted = fscrypt_inode_uses_fs_layer_crypto(cc->inode) ?
1289 pgoff_t start_idx = start_idx_of_cluster(cc);
1290 unsigned int last_index = cc->cluster_size - 1;
1312 set_new_dnode(&dn, cc->inode, NULL, NULL, 0);
1318 for (i = 0; i < cc->cluster_size; i++) {
1324 folio = page_folio(cc->rpages[last_index]);
1339 atomic_set(&cic->pending_pages, cc->valid_nr_cpages);
1340 cic->rpages = page_array_alloc(cc->inode, cc->cluster_size);
1344 cic->nr_rpages = cc->cluster_size;
1346 for (i = 0; i < cc->valid_nr_cpages; i++) {
1347 f2fs_set_compressed_page(cc->cpages[i], inode,
1348 page_folio(cc->rpages[i + 1])->index, cic);
1349 fio.compressed_page = cc->cpages[i];
1358 fio.page = cc->rpages[i + 1];
1362 cc->cpages[i] = fio.encrypted_page;
1366 set_cluster_writeback(cc);
1368 for (i = 0; i < cc->cluster_size; i++)
1369 cic->rpages[i] = cc->rpages[i];
1371 for (i = 0; i < cc->cluster_size; i++, dn.ofs_in_node++) {
1375 fio.page = cc->rpages[i];
1391 if (i > cc->valid_nr_cpages) {
1402 fio.encrypted_page = cc->cpages[i - 1];
1404 fio.compressed_page = cc->cpages[i - 1];
1406 cc->cpages[i - 1] = NULL;
1410 cancel_cluster_writeback(cc, cic, i);
1413 i = cc->valid_nr_cpages;
1419 inode_dec_dirty_pages(cc->inode);
1425 f2fs_i_compr_blocks_update(inode, cc->valid_nr_cpages, true);
1426 add_compr_block_stat(inode, cc->valid_nr_cpages);
1428 set_inode_flag(cc->inode, FI_APPEND_WRITE);
1441 f2fs_put_rpages(cc);
1442 page_array_free(cc->inode, cc->cpages, cc->nr_cpages);
1443 cc->cpages = NULL;
1444 f2fs_destroy_compress_ctx(cc, false);
1448 page_array_free(cc->inode, cic->rpages, cc->cluster_size);
1451 if (!cc->cpages[i])
1453 fscrypt_finalize_bounce_page(&cc->cpages[i]);
1465 for (i = 0; i < cc->valid_nr_cpages; i++) {
1466 f2fs_compress_free_page(cc->cpages[i]);
1467 cc->cpages[i] = NULL;
1469 page_array_free(cc->inode, cc->cpages, cc->nr_cpages);
1470 cc->cpages = NULL;
1503 static int f2fs_write_raw_pages(struct compress_ctx *cc,
1508 struct address_space *mapping = cc->inode->i_mapping;
1513 compr_blocks = f2fs_compressed_blocks(cc);
1515 for (i = 0; i < cc->cluster_size; i++) {
1516 if (!cc->rpages[i])
1519 redirty_page_for_writepage(wbc, cc->rpages[i]);
1520 unlock_page(cc->rpages[i]);
1530 for (i = 0; i < cc->cluster_size; i++) {
1531 if (!cc->rpages[i])
1534 lock_page(cc->rpages[i]);
1536 if (cc->rpages[i]->mapping != mapping) {
1538 unlock_page(cc->rpages[i]);
1542 if (!PageDirty(cc->rpages[i]))
1545 if (folio_test_writeback(page_folio(cc->rpages[i]))) {
1548 f2fs_wait_on_page_writeback(cc->rpages[i], DATA, true, true);
1551 if (!clear_page_dirty_for_io(cc->rpages[i]))
1555 ret = f2fs_write_single_data_page(page_folio(cc->rpages[i]),
1561 unlock_page(cc->rpages[i]);
1570 if (IS_NOQUOTA(cc->inode))
1589 int f2fs_write_multi_pages(struct compress_ctx *cc,
1597 if (cluster_may_compress(cc)) {
1598 err = f2fs_compress_pages(cc);
1600 add_compr_block_stat(cc->inode, cc->cluster_size);
1603 f2fs_put_rpages_wbc(cc, wbc, true, 1);
1607 err = f2fs_write_compressed_pages(cc, submitted,
1611 f2fs_bug_on(F2FS_I_SB(cc->inode), err != -EAGAIN);
1614 f2fs_bug_on(F2FS_I_SB(cc->inode), *submitted);
1616 err = f2fs_write_raw_pages(cc, submitted, wbc, io_type);
1617 f2fs_put_rpages_wbc(cc, wbc, false, 0);
1619 f2fs_destroy_compress_ctx(cc, false);
1688 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc)
1691 pgoff_t start_idx = start_idx_of_cluster(cc);
1692 struct f2fs_sb_info *sbi = F2FS_I_SB(cc->inode);
1699 dic->rpages = page_array_alloc(cc->inode, cc->cluster_size);
1706 dic->inode = cc->inode;
1707 atomic_set(&dic->remaining_pages, cc->nr_cpages);
1708 dic->cluster_idx = cc->cluster_idx;
1709 dic->cluster_size = cc->cluster_size;
1710 dic->log_cluster_size = cc->log_cluster_size;
1711 dic->nr_cpages = cc->nr_cpages;
1714 dic->need_verity = f2fs_need_verity(cc->inode, start_idx);
1717 dic->rpages[i] = cc->rpages[i];
1718 dic->nr_rpages = cc->cluster_size;
1730 f2fs_set_compressed_page(page, cc->inode,