Lines Matching refs:ic
94 #define journal_entry_tag(ic, je) ((__u8 *)&(je)->last_bytes[(ic)->sectors_per_block]) argument
279 struct dm_integrity_c *ic; member
301 struct dm_integrity_c *ic; member
313 struct dm_integrity_c *ic; member
371 static void dm_integrity_io_error(struct dm_integrity_c *ic, const char *msg, int err) in dm_integrity_io_error() argument
374 atomic64_inc(&ic->number_of_mismatches); in dm_integrity_io_error()
375 if (!cmpxchg(&ic->failed, 0, err)) in dm_integrity_io_error()
379 static int dm_integrity_failed(struct dm_integrity_c *ic) in dm_integrity_failed() argument
381 return READ_ONCE(ic->failed); in dm_integrity_failed()
384 static commit_id_t dm_integrity_commit_id(struct dm_integrity_c *ic, unsigned i, in dm_integrity_commit_id() argument
391 return ic->commit_ids[seq] ^ cpu_to_le64(((__u64)i << 32) ^ j); in dm_integrity_commit_id()
394 static void get_area_and_offset(struct dm_integrity_c *ic, sector_t data_sector, in get_area_and_offset() argument
397 if (!ic->meta_dev) { in get_area_and_offset()
398 __u8 log2_interleave_sectors = ic->sb->log2_interleave_sectors; in get_area_and_offset()
407 #define sector_to_block(ic, n) \ argument
409 BUG_ON((n) & (unsigned)((ic)->sectors_per_block - 1)); \
410 (n) >>= (ic)->sb->log2_sectors_per_block; \
413 static __u64 get_metadata_sector_and_offset(struct dm_integrity_c *ic, sector_t area, in get_metadata_sector_and_offset() argument
419 ms = area << ic->sb->log2_interleave_sectors; in get_metadata_sector_and_offset()
420 if (likely(ic->log2_metadata_run >= 0)) in get_metadata_sector_and_offset()
421 ms += area << ic->log2_metadata_run; in get_metadata_sector_and_offset()
423 ms += area * ic->metadata_run; in get_metadata_sector_and_offset()
424 ms >>= ic->log2_buffer_sectors; in get_metadata_sector_and_offset()
426 sector_to_block(ic, offset); in get_metadata_sector_and_offset()
428 if (likely(ic->log2_tag_size >= 0)) { in get_metadata_sector_and_offset()
429 ms += offset >> (SECTOR_SHIFT + ic->log2_buffer_sectors - ic->log2_tag_size); in get_metadata_sector_and_offset()
430 mo = (offset << ic->log2_tag_size) & ((1U << SECTOR_SHIFT << ic->log2_buffer_sectors) - 1); in get_metadata_sector_and_offset()
432 ms += (__u64)offset * ic->tag_size >> (SECTOR_SHIFT + ic->log2_buffer_sectors); in get_metadata_sector_and_offset()
433 mo = (offset * ic->tag_size) & ((1U << SECTOR_SHIFT << ic->log2_buffer_sectors) - 1); in get_metadata_sector_and_offset()
439 static sector_t get_data_sector(struct dm_integrity_c *ic, sector_t area, sector_t offset) in get_data_sector() argument
443 if (ic->meta_dev) in get_data_sector()
446 result = area << ic->sb->log2_interleave_sectors; in get_data_sector()
447 if (likely(ic->log2_metadata_run >= 0)) in get_data_sector()
448 result += (area + 1) << ic->log2_metadata_run; in get_data_sector()
450 result += (area + 1) * ic->metadata_run; in get_data_sector()
452 result += (sector_t)ic->initial_sectors + offset; in get_data_sector()
453 result += ic->start; in get_data_sector()
458 static void wraparound_section(struct dm_integrity_c *ic, unsigned *sec_ptr) in wraparound_section() argument
460 if (unlikely(*sec_ptr >= ic->journal_sections)) in wraparound_section()
461 *sec_ptr -= ic->journal_sections; in wraparound_section()
464 static void sb_set_version(struct dm_integrity_c *ic) in sb_set_version() argument
466 if (ic->mode == 'B' || ic->sb->flags & cpu_to_le32(SB_FLAG_DIRTY_BITMAP)) in sb_set_version()
467 ic->sb->version = SB_VERSION_3; in sb_set_version()
468 else if (ic->meta_dev || ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING)) in sb_set_version()
469 ic->sb->version = SB_VERSION_2; in sb_set_version()
471 ic->sb->version = SB_VERSION_1; in sb_set_version()
474 static int sync_rw_sb(struct dm_integrity_c *ic, int op, int op_flags) in sync_rw_sb() argument
482 io_req.mem.ptr.addr = ic->sb; in sync_rw_sb()
484 io_req.client = ic->io; in sync_rw_sb()
485 io_loc.bdev = ic->meta_dev ? ic->meta_dev->bdev : ic->dev->bdev; in sync_rw_sb()
486 io_loc.sector = ic->start; in sync_rw_sb()
490 sb_set_version(ic); in sync_rw_sb()
500 static bool block_bitmap_op(struct dm_integrity_c *ic, struct page_list *bitmap, in block_bitmap_op() argument
506 if (unlikely(((sector | n_sectors) & ((1 << ic->sb->log2_sectors_per_block) - 1)) != 0)) { in block_bitmap_op()
510 ic->sb->log2_sectors_per_block, in block_bitmap_op()
511 ic->log2_blocks_per_bitmap_bit, in block_bitmap_op()
519 bit = sector >> (ic->sb->log2_sectors_per_block + ic->log2_blocks_per_bitmap_bit); in block_bitmap_op()
521 (ic->sb->log2_sectors_per_block + ic->log2_blocks_per_bitmap_bit); in block_bitmap_op()
605 static void block_bitmap_copy(struct dm_integrity_c *ic, struct page_list *dst, struct page_list *s… in block_bitmap_copy() argument
607 unsigned n_bitmap_pages = DIV_ROUND_UP(ic->n_bitmap_blocks, PAGE_SIZE / BITMAP_BLOCK_SIZE); in block_bitmap_copy()
617 static struct bitmap_block_status *sector_to_bitmap_block(struct dm_integrity_c *ic, sector_t secto… in sector_to_bitmap_block() argument
619 unsigned bit = sector >> (ic->sb->log2_sectors_per_block + ic->log2_blocks_per_bitmap_bit); in sector_to_bitmap_block()
622 BUG_ON(bitmap_block >= ic->n_bitmap_blocks); in sector_to_bitmap_block()
623 return &ic->bbs[bitmap_block]; in sector_to_bitmap_block()
626 static void access_journal_check(struct dm_integrity_c *ic, unsigned section, unsigned offset, in access_journal_check() argument
630 unsigned limit = e ? ic->journal_section_entries : ic->journal_section_sectors; in access_journal_check()
632 if (unlikely(section >= ic->journal_sections) || in access_journal_check()
635 function, section, offset, ic->journal_sections, limit); in access_journal_check()
641 static void page_list_location(struct dm_integrity_c *ic, unsigned section, unsigned offset, in page_list_location() argument
646 access_journal_check(ic, section, offset, false, "page_list_location"); in page_list_location()
648 sector = section * ic->journal_section_sectors + offset; in page_list_location()
654 static struct journal_sector *access_page_list(struct dm_integrity_c *ic, struct page_list *pl, in access_page_list() argument
660 page_list_location(ic, section, offset, &pl_index, &pl_offset); in access_page_list()
670 static struct journal_sector *access_journal(struct dm_integrity_c *ic, unsigned section, unsigned … in access_journal() argument
672 return access_page_list(ic, ic->journal, section, offset, NULL); in access_journal()
675 static struct journal_entry *access_journal_entry(struct dm_integrity_c *ic, unsigned section, unsi… in access_journal_entry() argument
680 access_journal_check(ic, section, n, true, "access_journal_entry"); in access_journal_entry()
685 js = access_journal(ic, section, rel_sector); in access_journal_entry()
686 return (struct journal_entry *)((char *)js + offset * ic->journal_entry_size); in access_journal_entry()
689 static struct journal_sector *access_journal_data(struct dm_integrity_c *ic, unsigned section, unsi… in access_journal_data() argument
691 n <<= ic->sb->log2_sectors_per_block; in access_journal_data()
695 access_journal_check(ic, section, n, false, "access_journal_data"); in access_journal_data()
697 return access_journal(ic, section, n); in access_journal_data()
700 static void section_mac(struct dm_integrity_c *ic, unsigned section, __u8 result[JOURNAL_MAC_SIZE]) in section_mac() argument
702 SHASH_DESC_ON_STACK(desc, ic->journal_mac); in section_mac()
706 desc->tfm = ic->journal_mac; in section_mac()
710 dm_integrity_io_error(ic, "crypto_shash_init", r); in section_mac()
714 for (j = 0; j < ic->journal_section_entries; j++) { in section_mac()
715 struct journal_entry *je = access_journal_entry(ic, section, j); in section_mac()
718 dm_integrity_io_error(ic, "crypto_shash_update", r); in section_mac()
723 size = crypto_shash_digestsize(ic->journal_mac); in section_mac()
728 dm_integrity_io_error(ic, "crypto_shash_final", r); in section_mac()
736 dm_integrity_io_error(ic, "digest_size", -EINVAL); in section_mac()
741 dm_integrity_io_error(ic, "crypto_shash_final", r); in section_mac()
752 static void rw_section_mac(struct dm_integrity_c *ic, unsigned section, bool wr) in rw_section_mac() argument
757 if (!ic->journal_mac) in rw_section_mac()
760 section_mac(ic, section, result); in rw_section_mac()
763 struct journal_sector *js = access_journal(ic, section, j); in rw_section_mac()
769 dm_integrity_io_error(ic, "journal mac", -EILSEQ); in rw_section_mac()
782 static void xor_journal(struct dm_integrity_c *ic, bool encrypt, unsigned section, in xor_journal() argument
786 size_t n_bytes = (size_t)(n_sections * ic->journal_section_sectors) << SECTOR_SHIFT; in xor_journal()
791 source_pl = ic->journal; in xor_journal()
792 target_pl = ic->journal_io; in xor_journal()
794 source_pl = ic->journal_io; in xor_journal()
795 target_pl = ic->journal; in xor_journal()
798 page_list_location(ic, section, 0, &pl_index, &pl_offset); in xor_journal()
814 rw_section_mac(ic, section, true); in xor_journal()
819 page_list_location(ic, section, 0, §ion_index, &dummy); in xor_journal()
825 src_pages[1] = ic->journal_xor[pl_index].page; in xor_journal()
844 complete(&comp->ic->crypto_backoff); in complete_journal_encrypt()
847 dm_integrity_io_error(comp->ic, "asynchronous encrypt", err); in complete_journal_encrypt()
866 wait_for_completion(&comp->ic->crypto_backoff); in do_crypt()
867 reinit_completion(&comp->ic->crypto_backoff); in do_crypt()
870 dm_integrity_io_error(comp->ic, "encrypt", r); in do_crypt()
874 static void crypt_journal(struct dm_integrity_c *ic, bool encrypt, unsigned section, in crypt_journal() argument
883 source_sg = ic->journal_scatterlist; in crypt_journal()
884 target_sg = ic->journal_io_scatterlist; in crypt_journal()
886 source_sg = ic->journal_io_scatterlist; in crypt_journal()
887 target_sg = ic->journal_scatterlist; in crypt_journal()
896 rw_section_mac(ic, section, true); in crypt_journal()
898 req = ic->sk_requests[section]; in crypt_journal()
899 ivsize = crypto_skcipher_ivsize(ic->journal_crypt); in crypt_journal()
918 static void encrypt_journal(struct dm_integrity_c *ic, bool encrypt, unsigned section, in encrypt_journal() argument
921 if (ic->journal_xor) in encrypt_journal()
922 return xor_journal(ic, encrypt, section, n_sections, comp); in encrypt_journal()
924 return crypt_journal(ic, encrypt, section, n_sections, comp); in encrypt_journal()
931 dm_integrity_io_error(comp->ic, "writing journal", -EIO); in complete_journal_io()
935 static void rw_journal_sectors(struct dm_integrity_c *ic, int op, int op_flags, in rw_journal_sectors() argument
943 if (unlikely(dm_integrity_failed(ic))) { in rw_journal_sectors()
955 if (ic->journal_io) in rw_journal_sectors()
956 io_req.mem.ptr.pl = &ic->journal_io[pl_index]; in rw_journal_sectors()
958 io_req.mem.ptr.pl = &ic->journal[pl_index]; in rw_journal_sectors()
966 io_req.client = ic->io; in rw_journal_sectors()
967 io_loc.bdev = ic->meta_dev ? ic->meta_dev->bdev : ic->dev->bdev; in rw_journal_sectors()
968 io_loc.sector = ic->start + SB_SECTORS + sector; in rw_journal_sectors()
973 dm_integrity_io_error(ic, op == REQ_OP_READ ? "reading journal" : "writing journal", r); in rw_journal_sectors()
981 static void rw_journal(struct dm_integrity_c *ic, int op, int op_flags, unsigned section, in rw_journal() argument
986 sector = section * ic->journal_section_sectors; in rw_journal()
987 n_sectors = n_sections * ic->journal_section_sectors; in rw_journal()
989 rw_journal_sectors(ic, op, op_flags, sector, n_sectors, comp); in rw_journal()
992 static void write_journal(struct dm_integrity_c *ic, unsigned commit_start, unsigned commit_section… in write_journal() argument
999 io_comp.ic = ic; in write_journal()
1002 if (commit_start + commit_sections <= ic->journal_sections) { in write_journal()
1004 if (ic->journal_io) { in write_journal()
1005 crypt_comp_1.ic = ic; in write_journal()
1008 encrypt_journal(ic, true, commit_start, commit_sections, &crypt_comp_1); in write_journal()
1012 rw_section_mac(ic, commit_start + i, true); in write_journal()
1014 rw_journal(ic, REQ_OP_WRITE, REQ_FUA | REQ_SYNC, commit_start, in write_journal()
1019 to_end = ic->journal_sections - commit_start; in write_journal()
1020 if (ic->journal_io) { in write_journal()
1021 crypt_comp_1.ic = ic; in write_journal()
1024 encrypt_journal(ic, true, commit_start, to_end, &crypt_comp_1); in write_journal()
1026 rw_journal(ic, REQ_OP_WRITE, REQ_FUA, commit_start, to_end, &io_comp); in write_journal()
1029 encrypt_journal(ic, true, 0, commit_sections - to_end, &crypt_comp_1); in write_journal()
1032 crypt_comp_2.ic = ic; in write_journal()
1035 encrypt_journal(ic, true, 0, commit_sections - to_end, &crypt_comp_2); in write_journal()
1037 rw_journal(ic, REQ_OP_WRITE, REQ_FUA, commit_start, to_end, &io_comp); in write_journal()
1042 rw_section_mac(ic, commit_start + i, true); in write_journal()
1043 rw_journal(ic, REQ_OP_WRITE, REQ_FUA, commit_start, to_end, &io_comp); in write_journal()
1045 rw_section_mac(ic, i, true); in write_journal()
1047 rw_journal(ic, REQ_OP_WRITE, REQ_FUA, 0, commit_sections - to_end, &io_comp); in write_journal()
1053 static void copy_from_journal(struct dm_integrity_c *ic, unsigned section, unsigned offset, in copy_from_journal() argument
1061 BUG_ON((target | n_sectors | offset) & (unsigned)(ic->sectors_per_block - 1)); in copy_from_journal()
1063 if (unlikely(dm_integrity_failed(ic))) { in copy_from_journal()
1068 sector = section * ic->journal_section_sectors + JOURNAL_BLOCK_SECTORS + offset; in copy_from_journal()
1076 io_req.mem.ptr.pl = &ic->journal[pl_index]; in copy_from_journal()
1080 io_req.client = ic->io; in copy_from_journal()
1081 io_loc.bdev = ic->dev->bdev; in copy_from_journal()
1098 static bool add_new_range(struct dm_integrity_c *ic, struct dm_integrity_range *new_range, bool che… in add_new_range() argument
1100 struct rb_node **n = &ic->in_progress.rb_node; in add_new_range()
1103 BUG_ON((new_range->logical_sector | new_range->n_sectors) & (unsigned)(ic->sectors_per_block - 1)); in add_new_range()
1107 list_for_each_entry(range, &ic->wait_list, wait_entry) { in add_new_range()
1129 rb_insert_color(&new_range->node, &ic->in_progress); in add_new_range()
1134 static void remove_range_unlocked(struct dm_integrity_c *ic, struct dm_integrity_range *range) in remove_range_unlocked() argument
1136 rb_erase(&range->node, &ic->in_progress); in remove_range_unlocked()
1137 while (unlikely(!list_empty(&ic->wait_list))) { in remove_range_unlocked()
1139 list_first_entry(&ic->wait_list, struct dm_integrity_range, wait_entry); in remove_range_unlocked()
1143 if (!add_new_range(ic, last_range, false)) { in remove_range_unlocked()
1145 list_add(&last_range->wait_entry, &ic->wait_list); in remove_range_unlocked()
1153 static void remove_range(struct dm_integrity_c *ic, struct dm_integrity_range *range) in remove_range() argument
1157 spin_lock_irqsave(&ic->endio_wait.lock, flags); in remove_range()
1158 remove_range_unlocked(ic, range); in remove_range()
1159 spin_unlock_irqrestore(&ic->endio_wait.lock, flags); in remove_range()
1162 static void wait_and_add_new_range(struct dm_integrity_c *ic, struct dm_integrity_range *new_range) in wait_and_add_new_range() argument
1165 list_add_tail(&new_range->wait_entry, &ic->wait_list); in wait_and_add_new_range()
1169 spin_unlock_irq(&ic->endio_wait.lock); in wait_and_add_new_range()
1171 spin_lock_irq(&ic->endio_wait.lock); in wait_and_add_new_range()
1175 static void add_new_range_and_wait(struct dm_integrity_c *ic, struct dm_integrity_range *new_range) in add_new_range_and_wait() argument
1177 if (unlikely(!add_new_range(ic, new_range, true))) in add_new_range_and_wait()
1178 wait_and_add_new_range(ic, new_range); in add_new_range_and_wait()
1187 static void add_journal_node(struct dm_integrity_c *ic, struct journal_node *node, sector_t sector) in add_journal_node() argument
1195 link = &ic->journal_tree_root.rb_node; in add_journal_node()
1209 rb_insert_color(&node->node, &ic->journal_tree_root); in add_journal_node()
1212 static void remove_journal_node(struct dm_integrity_c *ic, struct journal_node *node) in remove_journal_node() argument
1215 rb_erase(&node->node, &ic->journal_tree_root); in remove_journal_node()
1221 static unsigned find_journal_node(struct dm_integrity_c *ic, sector_t sector, sector_t *next_sector) in find_journal_node() argument
1223 struct rb_node *n = ic->journal_tree_root.rb_node; in find_journal_node()
1229 found = j - ic->journal_tree; in find_journal_node()
1242 static bool test_journal_node(struct dm_integrity_c *ic, unsigned pos, sector_t sector) in test_journal_node() argument
1247 if (unlikely(pos >= ic->journal_entries)) in test_journal_node()
1249 node = &ic->journal_tree[pos]; in test_journal_node()
1263 static bool find_newer_committed_node(struct dm_integrity_c *ic, struct journal_node *node) in find_newer_committed_node() argument
1280 next_section = (unsigned)(next_node - ic->journal_tree) / ic->journal_section_entries; in find_newer_committed_node()
1281 if (next_section >= ic->committed_section && in find_newer_committed_node()
1282 next_section < ic->committed_section + ic->n_committed_sections) in find_newer_committed_node()
1284 if (next_section + ic->journal_sections < ic->committed_section + ic->n_committed_sections) in find_newer_committed_node()
1294 static int dm_integrity_rw_tag(struct dm_integrity_c *ic, unsigned char *tag, sector_t *metadata_bl… in dm_integrity_rw_tag() argument
1303 r = dm_integrity_failed(ic); in dm_integrity_rw_tag()
1307 data = dm_bufio_read(ic->bufio, *metadata_block, &b); in dm_integrity_rw_tag()
1311 to_copy = min((1U << SECTOR_SHIFT << ic->log2_buffer_sectors) - *metadata_offset, total_size); in dm_integrity_rw_tag()
1336 if (unlikely(*metadata_offset == 1U << SECTOR_SHIFT << ic->log2_buffer_sectors)) { in dm_integrity_rw_tag()
1346 static void dm_integrity_flush_buffers(struct dm_integrity_c *ic) in dm_integrity_flush_buffers() argument
1349 r = dm_bufio_write_dirty_buffers(ic->bufio); in dm_integrity_flush_buffers()
1351 dm_integrity_io_error(ic, "writing tags", r); in dm_integrity_flush_buffers()
1354 static void sleep_on_endio_wait(struct dm_integrity_c *ic) in sleep_on_endio_wait() argument
1357 __add_wait_queue(&ic->endio_wait, &wait); in sleep_on_endio_wait()
1359 spin_unlock_irq(&ic->endio_wait.lock); in sleep_on_endio_wait()
1361 spin_lock_irq(&ic->endio_wait.lock); in sleep_on_endio_wait()
1362 __remove_wait_queue(&ic->endio_wait, &wait); in sleep_on_endio_wait()
1367 struct dm_integrity_c *ic = from_timer(ic, t, autocommit_timer); in autocommit_fn() local
1369 if (likely(!dm_integrity_failed(ic))) in autocommit_fn()
1370 queue_work(ic->commit_wq, &ic->commit_work); in autocommit_fn()
1373 static void schedule_autocommit(struct dm_integrity_c *ic) in schedule_autocommit() argument
1375 if (!timer_pending(&ic->autocommit_timer)) in schedule_autocommit()
1376 mod_timer(&ic->autocommit_timer, jiffies + ic->autocommit_jiffies); in schedule_autocommit()
1379 static void submit_flush_bio(struct dm_integrity_c *ic, struct dm_integrity_io *dio) in submit_flush_bio() argument
1384 spin_lock_irqsave(&ic->endio_wait.lock, flags); in submit_flush_bio()
1386 bio_list_add(&ic->flush_bio_list, bio); in submit_flush_bio()
1387 spin_unlock_irqrestore(&ic->endio_wait.lock, flags); in submit_flush_bio()
1389 queue_work(ic->commit_wq, &ic->commit_work); in submit_flush_bio()
1392 static void do_endio(struct dm_integrity_c *ic, struct bio *bio) in do_endio() argument
1394 int r = dm_integrity_failed(ic); in do_endio()
1397 if (unlikely(ic->synchronous_mode) && bio_op(bio) == REQ_OP_WRITE) { in do_endio()
1399 spin_lock_irqsave(&ic->endio_wait.lock, flags); in do_endio()
1400 bio_list_add(&ic->synchronous_bios, bio); in do_endio()
1401 queue_delayed_work(ic->commit_wq, &ic->bitmap_flush_work, 0); in do_endio()
1402 spin_unlock_irqrestore(&ic->endio_wait.lock, flags); in do_endio()
1408 static void do_endio_flush(struct dm_integrity_c *ic, struct dm_integrity_io *dio) in do_endio_flush() argument
1412 if (unlikely(dio->fua) && likely(!bio->bi_status) && likely(!dm_integrity_failed(ic))) in do_endio_flush()
1413 submit_flush_bio(ic, dio); in do_endio_flush()
1415 do_endio(ic, bio); in do_endio_flush()
1421 struct dm_integrity_c *ic = dio->ic; in dec_in_flight() local
1424 remove_range(ic, &dio->range); in dec_in_flight()
1427 schedule_autocommit(ic); in dec_in_flight()
1437 queue_work(ic->wait_wq, &dio->work); in dec_in_flight()
1440 do_endio_flush(ic, dio); in dec_in_flight()
1463 static void integrity_sector_checksum(struct dm_integrity_c *ic, sector_t sector, in integrity_sector_checksum() argument
1467 SHASH_DESC_ON_STACK(req, ic->internal_hash); in integrity_sector_checksum()
1471 req->tfm = ic->internal_hash; in integrity_sector_checksum()
1475 dm_integrity_io_error(ic, "crypto_shash_init", r); in integrity_sector_checksum()
1481 dm_integrity_io_error(ic, "crypto_shash_update", r); in integrity_sector_checksum()
1485 r = crypto_shash_update(req, data, ic->sectors_per_block << SECTOR_SHIFT); in integrity_sector_checksum()
1487 dm_integrity_io_error(ic, "crypto_shash_update", r); in integrity_sector_checksum()
1493 dm_integrity_io_error(ic, "crypto_shash_final", r); in integrity_sector_checksum()
1497 digest_size = crypto_shash_digestsize(ic->internal_hash); in integrity_sector_checksum()
1498 if (unlikely(digest_size < ic->tag_size)) in integrity_sector_checksum()
1499 memset(result + digest_size, 0, ic->tag_size - digest_size); in integrity_sector_checksum()
1505 get_random_bytes(result, ic->tag_size); in integrity_sector_checksum()
1511 struct dm_integrity_c *ic = dio->ic; in integrity_metadata() local
1515 if (ic->internal_hash) { in integrity_metadata()
1518 unsigned digest_size = crypto_shash_digestsize(ic->internal_hash); in integrity_metadata()
1521 unsigned extra_space = unlikely(digest_size > ic->tag_size) ? digest_size - ic->tag_size : 0; in integrity_metadata()
1526 if (unlikely(ic->mode == 'R')) in integrity_metadata()
1529 …checksums = kmalloc((PAGE_SIZE >> SECTOR_SHIFT >> ic->sb->log2_sectors_per_block) * ic->tag_size +… in integrity_metadata()
1549 integrity_sector_checksum(ic, sector, mem + pos, checksums_ptr); in integrity_metadata()
1550 checksums_ptr += ic->tag_size; in integrity_metadata()
1551 sectors_to_process -= ic->sectors_per_block; in integrity_metadata()
1552 pos += ic->sectors_per_block << SECTOR_SHIFT; in integrity_metadata()
1553 sector += ic->sectors_per_block; in integrity_metadata()
1557 r = dm_integrity_rw_tag(ic, checksums, &dio->metadata_block, &dio->metadata_offset, in integrity_metadata()
1562 (unsigned long long)(sector - ((r + ic->tag_size - 1) / ic->tag_size))); in integrity_metadata()
1564 atomic64_inc(&ic->number_of_mismatches); in integrity_metadata()
1590 sector_to_block(ic, data_to_process); in integrity_metadata()
1591 data_to_process *= ic->tag_size; in integrity_metadata()
1600 r = dm_integrity_rw_tag(ic, tag, &dio->metadata_block, &dio->metadata_offset, in integrity_metadata()
1620 struct dm_integrity_c *ic = ti->private; in dm_integrity_map() local
1626 dio->ic = ic; in dm_integrity_map()
1630 submit_flush_bio(ic, dio); in dm_integrity_map()
1644 if (unlikely(dio->range.logical_sector + bio_sectors(bio) > ic->provided_data_sectors)) { in dm_integrity_map()
1647 (unsigned long long)ic->provided_data_sectors); in dm_integrity_map()
1650 …if (unlikely((dio->range.logical_sector | bio_sectors(bio)) & (unsigned)(ic->sectors_per_block - 1… in dm_integrity_map()
1652 ic->sectors_per_block, in dm_integrity_map()
1657 if (ic->sectors_per_block > 1) { in dm_integrity_map()
1661 if (unlikely(bv.bv_len & ((ic->sectors_per_block << SECTOR_SHIFT) - 1))) { in dm_integrity_map()
1663 bv.bv_offset, bv.bv_len, ic->sectors_per_block); in dm_integrity_map()
1670 if (!ic->internal_hash) { in dm_integrity_map()
1672 unsigned wanted_tag_size = bio_sectors(bio) >> ic->sb->log2_sectors_per_block; in dm_integrity_map()
1673 if (ic->log2_tag_size >= 0) in dm_integrity_map()
1674 wanted_tag_size <<= ic->log2_tag_size; in dm_integrity_map()
1676 wanted_tag_size *= ic->tag_size; in dm_integrity_map()
1690 if (unlikely(ic->mode == 'R') && unlikely(dio->write)) in dm_integrity_map()
1693 get_area_and_offset(ic, dio->range.logical_sector, &area, &offset); in dm_integrity_map()
1694 dio->metadata_block = get_metadata_sector_and_offset(ic, area, offset, &dio->metadata_offset); in dm_integrity_map()
1695 bio->bi_iter.bi_sector = get_data_sector(ic, area, offset); in dm_integrity_map()
1704 struct dm_integrity_c *ic = dio->ic; in __journal_read_write() local
1724 struct journal_entry *je = access_journal_entry(ic, journal_section, journal_entry); in __journal_read_write()
1735 __io_wait_event(ic->copy_to_journal_wait, !journal_entry_is_inprogress(je)); in __journal_read_write()
1740 js = access_journal_data(ic, journal_section, journal_entry); in __journal_read_write()
1748 } while (++s < ic->sectors_per_block); in __journal_read_write()
1750 if (ic->internal_hash) { in __journal_read_write()
1753 integrity_sector_checksum(ic, logical_sector, mem + bv.bv_offset, checksums_onstack); in __journal_read_write()
1754 if (unlikely(memcmp(checksums_onstack, journal_entry_tag(ic, je), ic->tag_size))) { in __journal_read_write()
1762 if (!ic->internal_hash) { in __journal_read_write()
1764 unsigned tag_todo = ic->tag_size; in __journal_read_write()
1765 char *tag_ptr = journal_entry_tag(ic, je); in __journal_read_write()
1790 js = access_journal_data(ic, journal_section, journal_entry); in __journal_read_write()
1791 memcpy(js, mem + bv.bv_offset, ic->sectors_per_block << SECTOR_SHIFT); in __journal_read_write()
1796 } while (++s < ic->sectors_per_block); in __journal_read_write()
1798 if (ic->internal_hash) { in __journal_read_write()
1799 unsigned digest_size = crypto_shash_digestsize(ic->internal_hash); in __journal_read_write()
1800 if (unlikely(digest_size > ic->tag_size)) { in __journal_read_write()
1802 integrity_sector_checksum(ic, logical_sector, (char *)js, checksums_onstack); in __journal_read_write()
1803 memcpy(journal_entry_tag(ic, je), checksums_onstack, ic->tag_size); in __journal_read_write()
1805 integrity_sector_checksum(ic, logical_sector, (char *)js, journal_entry_tag(ic, je)); in __journal_read_write()
1810 logical_sector += ic->sectors_per_block; in __journal_read_write()
1813 if (unlikely(journal_entry == ic->journal_section_entries)) { in __journal_read_write()
1816 wraparound_section(ic, &journal_section); in __journal_read_write()
1819 bv.bv_offset += ic->sectors_per_block << SECTOR_SHIFT; in __journal_read_write()
1820 } while (bv.bv_len -= ic->sectors_per_block << SECTOR_SHIFT); in __journal_read_write()
1829 if (unlikely(waitqueue_active(&ic->copy_to_journal_wait))) in __journal_read_write()
1830 wake_up(&ic->copy_to_journal_wait); in __journal_read_write()
1831 if (READ_ONCE(ic->free_sectors) <= ic->free_sectors_threshold) { in __journal_read_write()
1832 queue_work(ic->commit_wq, &ic->commit_work); in __journal_read_write()
1834 schedule_autocommit(ic); in __journal_read_write()
1837 remove_range(ic, &dio->range); in __journal_read_write()
1844 get_area_and_offset(ic, dio->range.logical_sector, &area, &offset); in __journal_read_write()
1845 dio->metadata_block = get_metadata_sector_and_offset(ic, area, offset, &dio->metadata_offset); in __journal_read_write()
1854 struct dm_integrity_c *ic = dio->ic; in dm_integrity_map_continue() local
1859 bool need_sync_io = ic->internal_hash && !dio->write; in dm_integrity_map_continue()
1863 queue_work(ic->metadata_wq, &dio->work); in dm_integrity_map_continue()
1868 spin_lock_irq(&ic->endio_wait.lock); in dm_integrity_map_continue()
1870 if (unlikely(dm_integrity_failed(ic))) { in dm_integrity_map_continue()
1871 spin_unlock_irq(&ic->endio_wait.lock); in dm_integrity_map_continue()
1872 do_endio(ic, bio); in dm_integrity_map_continue()
1877 if (likely(ic->mode == 'J')) { in dm_integrity_map_continue()
1883 (sector_t)ic->free_sectors << ic->sb->log2_sectors_per_block); in dm_integrity_map_continue()
1887 sleep_on_endio_wait(ic); in dm_integrity_map_continue()
1890 range_sectors = dio->range.n_sectors >> ic->sb->log2_sectors_per_block; in dm_integrity_map_continue()
1891 ic->free_sectors -= range_sectors; in dm_integrity_map_continue()
1892 journal_section = ic->free_section; in dm_integrity_map_continue()
1893 journal_entry = ic->free_section_entry; in dm_integrity_map_continue()
1895 next_entry = ic->free_section_entry + range_sectors; in dm_integrity_map_continue()
1896 ic->free_section_entry = next_entry % ic->journal_section_entries; in dm_integrity_map_continue()
1897 ic->free_section += next_entry / ic->journal_section_entries; in dm_integrity_map_continue()
1898 ic->n_uncommitted_sections += next_entry / ic->journal_section_entries; in dm_integrity_map_continue()
1899 wraparound_section(ic, &ic->free_section); in dm_integrity_map_continue()
1901 pos = journal_section * ic->journal_section_entries + journal_entry; in dm_integrity_map_continue()
1908 add_journal_node(ic, &ic->journal_tree[pos], dio->range.logical_sector + i); in dm_integrity_map_continue()
1910 if (unlikely(pos >= ic->journal_entries)) in dm_integrity_map_continue()
1913 je = access_journal_entry(ic, ws, we); in dm_integrity_map_continue()
1917 if (unlikely(we == ic->journal_section_entries)) { in dm_integrity_map_continue()
1920 wraparound_section(ic, &ws); in dm_integrity_map_continue()
1922 } while ((i += ic->sectors_per_block) < dio->range.n_sectors); in dm_integrity_map_continue()
1924 spin_unlock_irq(&ic->endio_wait.lock); in dm_integrity_map_continue()
1928 journal_read_pos = find_journal_node(ic, dio->range.logical_sector, &next_sector); in dm_integrity_map_continue()
1935 for (i = ic->sectors_per_block; i < dio->range.n_sectors; i += ic->sectors_per_block, jp++) { in dm_integrity_map_continue()
1936 if (!test_journal_node(ic, jp, dio->range.logical_sector + i)) in dm_integrity_map_continue()
1943 if (unlikely(!add_new_range(ic, &dio->range, true))) { in dm_integrity_map_continue()
1951 spin_unlock_irq(&ic->endio_wait.lock); in dm_integrity_map_continue()
1953 queue_work(ic->wait_wq, &dio->work); in dm_integrity_map_continue()
1957 dio->range.n_sectors = ic->sectors_per_block; in dm_integrity_map_continue()
1958 wait_and_add_new_range(ic, &dio->range); in dm_integrity_map_continue()
1966 unsigned new_pos = find_journal_node(ic, dio->range.logical_sector, &next_sector); in dm_integrity_map_continue()
1968 remove_range_unlocked(ic, &dio->range); in dm_integrity_map_continue()
1973 spin_unlock_irq(&ic->endio_wait.lock); in dm_integrity_map_continue()
1976 journal_section = journal_read_pos / ic->journal_section_entries; in dm_integrity_map_continue()
1977 journal_entry = journal_read_pos % ic->journal_section_entries; in dm_integrity_map_continue()
1981 if (ic->mode == 'B' && dio->write) { in dm_integrity_map_continue()
1982 if (!block_bitmap_op(ic, ic->may_write_bitmap, dio->range.logical_sector, in dm_integrity_map_continue()
1986 bbs = sector_to_bitmap_block(ic, dio->range.logical_sector); in dm_integrity_map_continue()
1990 queue_work(ic->writer_wq, &bbs->work); in dm_integrity_map_continue()
2007 bio_set_dev(bio, ic->dev->bdev); in dm_integrity_map_continue()
2021 if (ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING) && in dm_integrity_map_continue()
2022 dio->range.logical_sector + dio->range.n_sectors > le64_to_cpu(ic->sb->recalc_sector)) in dm_integrity_map_continue()
2024 if (ic->mode == 'B') { in dm_integrity_map_continue()
2025 if (!block_bitmap_op(ic, ic->recalc_bitmap, dio->range.logical_sector, in dm_integrity_map_continue()
2038 queue_work(ic->metadata_wq, &dio->work); in dm_integrity_map_continue()
2047 do_endio_flush(ic, dio); in dm_integrity_map_continue()
2058 static void pad_uncommitted(struct dm_integrity_c *ic) in pad_uncommitted() argument
2060 if (ic->free_section_entry) { in pad_uncommitted()
2061 ic->free_sectors -= ic->journal_section_entries - ic->free_section_entry; in pad_uncommitted()
2062 ic->free_section_entry = 0; in pad_uncommitted()
2063 ic->free_section++; in pad_uncommitted()
2064 wraparound_section(ic, &ic->free_section); in pad_uncommitted()
2065 ic->n_uncommitted_sections++; in pad_uncommitted()
2067 if (WARN_ON(ic->journal_sections * ic->journal_section_entries != in pad_uncommitted()
2068 (ic->n_uncommitted_sections + ic->n_committed_sections) * in pad_uncommitted()
2069 ic->journal_section_entries + ic->free_sectors)) { in pad_uncommitted()
2073 ic->journal_sections, ic->journal_section_entries, in pad_uncommitted()
2074 ic->n_uncommitted_sections, ic->n_committed_sections, in pad_uncommitted()
2075 ic->journal_section_entries, ic->free_sectors); in pad_uncommitted()
2081 struct dm_integrity_c *ic = container_of(w, struct dm_integrity_c, commit_work); in integrity_commit() local
2086 del_timer(&ic->autocommit_timer); in integrity_commit()
2088 spin_lock_irq(&ic->endio_wait.lock); in integrity_commit()
2089 flushes = bio_list_get(&ic->flush_bio_list); in integrity_commit()
2090 if (unlikely(ic->mode != 'J')) { in integrity_commit()
2091 spin_unlock_irq(&ic->endio_wait.lock); in integrity_commit()
2092 dm_integrity_flush_buffers(ic); in integrity_commit()
2096 pad_uncommitted(ic); in integrity_commit()
2097 commit_start = ic->uncommitted_section; in integrity_commit()
2098 commit_sections = ic->n_uncommitted_sections; in integrity_commit()
2099 spin_unlock_irq(&ic->endio_wait.lock); in integrity_commit()
2106 for (j = 0; j < ic->journal_section_entries; j++) { in integrity_commit()
2108 je = access_journal_entry(ic, i, j); in integrity_commit()
2109 io_wait_event(ic->copy_to_journal_wait, !journal_entry_is_inprogress(je)); in integrity_commit()
2111 for (j = 0; j < ic->journal_section_sectors; j++) { in integrity_commit()
2113 js = access_journal(ic, i, j); in integrity_commit()
2114 js->commit_id = dm_integrity_commit_id(ic, i, j, ic->commit_seq); in integrity_commit()
2117 if (unlikely(i >= ic->journal_sections)) in integrity_commit()
2118 ic->commit_seq = next_commit_seq(ic->commit_seq); in integrity_commit()
2119 wraparound_section(ic, &i); in integrity_commit()
2123 write_journal(ic, commit_start, commit_sections); in integrity_commit()
2125 spin_lock_irq(&ic->endio_wait.lock); in integrity_commit()
2126 ic->uncommitted_section += commit_sections; in integrity_commit()
2127 wraparound_section(ic, &ic->uncommitted_section); in integrity_commit()
2128 ic->n_uncommitted_sections -= commit_sections; in integrity_commit()
2129 ic->n_committed_sections += commit_sections; in integrity_commit()
2130 spin_unlock_irq(&ic->endio_wait.lock); in integrity_commit()
2132 if (READ_ONCE(ic->free_sectors) <= ic->free_sectors_threshold) in integrity_commit()
2133 queue_work(ic->writer_wq, &ic->writer_work); in integrity_commit()
2139 do_endio(ic, flushes); in integrity_commit()
2148 struct dm_integrity_c *ic = comp->ic; in complete_copy_from_journal() local
2149 remove_range(ic, &io->range); in complete_copy_from_journal()
2150 mempool_free(io, &ic->journal_io_mempool); in complete_copy_from_journal()
2152 dm_integrity_io_error(ic, "copying from journal", -EIO); in complete_copy_from_journal()
2156 static void restore_last_bytes(struct dm_integrity_c *ic, struct journal_sector *js, in restore_last_bytes() argument
2163 } while (++s < ic->sectors_per_block); in restore_last_bytes()
2166 static void do_journal_write(struct dm_integrity_c *ic, unsigned write_start, in do_journal_write() argument
2175 comp.ic = ic; in do_journal_write()
2180 for (n = 0; n < write_sections; n++, i++, wraparound_section(ic, &i)) { in do_journal_write()
2184 rw_section_mac(ic, i, false); in do_journal_write()
2185 for (j = 0; j < ic->journal_section_entries; j++) { in do_journal_write()
2186 struct journal_entry *je = access_journal_entry(ic, i, j); in do_journal_write()
2198 if (unlikely(sec & (unsigned)(ic->sectors_per_block - 1))) { in do_journal_write()
2199 dm_integrity_io_error(ic, "invalid sector in journal", -EIO); in do_journal_write()
2200 sec &= ~(sector_t)(ic->sectors_per_block - 1); in do_journal_write()
2203 get_area_and_offset(ic, sec, &area, &offset); in do_journal_write()
2204 restore_last_bytes(ic, access_journal_data(ic, i, j), je); in do_journal_write()
2205 for (k = j + 1; k < ic->journal_section_entries; k++) { in do_journal_write()
2206 struct journal_entry *je2 = access_journal_entry(ic, i, k); in do_journal_write()
2212 get_area_and_offset(ic, sec2, &area2, &offset2); in do_journal_write()
2213 if (area2 != area || offset2 != offset + ((k - j) << ic->sb->log2_sectors_per_block)) in do_journal_write()
2215 restore_last_bytes(ic, access_journal_data(ic, i, k), je2); in do_journal_write()
2219 io = mempool_alloc(&ic->journal_io_mempool, GFP_NOIO); in do_journal_write()
2222 io->range.n_sectors = (k - j) << ic->sb->log2_sectors_per_block; in do_journal_write()
2224 spin_lock_irq(&ic->endio_wait.lock); in do_journal_write()
2225 add_new_range_and_wait(ic, &io->range); in do_journal_write()
2228 struct journal_node *section_node = &ic->journal_tree[i * ic->journal_section_entries]; in do_journal_write()
2231 while (j < k && find_newer_committed_node(ic, §ion_node[j])) { in do_journal_write()
2232 struct journal_entry *je2 = access_journal_entry(ic, i, j); in do_journal_write()
2235 remove_journal_node(ic, §ion_node[j]); in do_journal_write()
2237 sec += ic->sectors_per_block; in do_journal_write()
2238 offset += ic->sectors_per_block; in do_journal_write()
2240 while (j < k && find_newer_committed_node(ic, §ion_node[k - 1])) { in do_journal_write()
2241 struct journal_entry *je2 = access_journal_entry(ic, i, k - 1); in do_journal_write()
2244 remove_journal_node(ic, §ion_node[k - 1]); in do_journal_write()
2248 remove_range_unlocked(ic, &io->range); in do_journal_write()
2249 spin_unlock_irq(&ic->endio_wait.lock); in do_journal_write()
2250 mempool_free(io, &ic->journal_io_mempool); in do_journal_write()
2254 remove_journal_node(ic, §ion_node[l]); in do_journal_write()
2257 spin_unlock_irq(&ic->endio_wait.lock); in do_journal_write()
2259 metadata_block = get_metadata_sector_and_offset(ic, area, offset, &metadata_offset); in do_journal_write()
2262 struct journal_entry *je2 = access_journal_entry(ic, i, l); in do_journal_write()
2268 ic->internal_hash) { in do_journal_write()
2271 integrity_sector_checksum(ic, sec + ((l - j) << ic->sb->log2_sectors_per_block), in do_journal_write()
2272 (char *)access_journal_data(ic, i, l), test_tag); in do_journal_write()
2273 if (unlikely(memcmp(test_tag, journal_entry_tag(ic, je2), ic->tag_size))) in do_journal_write()
2274 dm_integrity_io_error(ic, "tag mismatch when replaying journal", -EILSEQ); in do_journal_write()
2278 r = dm_integrity_rw_tag(ic, journal_entry_tag(ic, je2), &metadata_block, &metadata_offset, in do_journal_write()
2279 ic->tag_size, TAG_WRITE); in do_journal_write()
2281 dm_integrity_io_error(ic, "reading tags", r); in do_journal_write()
2286 copy_from_journal(ic, i, j << ic->sb->log2_sectors_per_block, in do_journal_write()
2287 (k - j) << ic->sb->log2_sectors_per_block, in do_journal_write()
2288 get_data_sector(ic, area, offset), in do_journal_write()
2295 dm_bufio_write_dirty_buffers_async(ic->bufio); in do_journal_write()
2302 dm_integrity_flush_buffers(ic); in do_journal_write()
2307 struct dm_integrity_c *ic = container_of(w, struct dm_integrity_c, writer_work); in integrity_writer() local
2313 if (READ_ONCE(ic->suspending) && !ic->meta_dev) in integrity_writer()
2316 spin_lock_irq(&ic->endio_wait.lock); in integrity_writer()
2317 write_start = ic->committed_section; in integrity_writer()
2318 write_sections = ic->n_committed_sections; in integrity_writer()
2319 spin_unlock_irq(&ic->endio_wait.lock); in integrity_writer()
2324 do_journal_write(ic, write_start, write_sections, false); in integrity_writer()
2326 spin_lock_irq(&ic->endio_wait.lock); in integrity_writer()
2328 ic->committed_section += write_sections; in integrity_writer()
2329 wraparound_section(ic, &ic->committed_section); in integrity_writer()
2330 ic->n_committed_sections -= write_sections; in integrity_writer()
2332 prev_free_sectors = ic->free_sectors; in integrity_writer()
2333 ic->free_sectors += write_sections * ic->journal_section_entries; in integrity_writer()
2335 wake_up_locked(&ic->endio_wait); in integrity_writer()
2337 spin_unlock_irq(&ic->endio_wait.lock); in integrity_writer()
2340 static void recalc_write_super(struct dm_integrity_c *ic) in recalc_write_super() argument
2344 dm_integrity_flush_buffers(ic); in recalc_write_super()
2345 if (dm_integrity_failed(ic)) in recalc_write_super()
2348 r = sync_rw_sb(ic, REQ_OP_WRITE, 0); in recalc_write_super()
2350 dm_integrity_io_error(ic, "writing superblock", r); in recalc_write_super()
2355 struct dm_integrity_c *ic = container_of(w, struct dm_integrity_c, recalc_work); in integrity_recalc() local
2368 DEBUG_print("start recalculation... (position %llx)\n", le64_to_cpu(ic->sb->recalc_sector)); in integrity_recalc()
2370 spin_lock_irq(&ic->endio_wait.lock); in integrity_recalc()
2374 if (unlikely(READ_ONCE(ic->suspending))) in integrity_recalc()
2377 range.logical_sector = le64_to_cpu(ic->sb->recalc_sector); in integrity_recalc()
2378 if (unlikely(range.logical_sector >= ic->provided_data_sectors)) { in integrity_recalc()
2379 if (ic->mode == 'B') { in integrity_recalc()
2381 queue_delayed_work(ic->commit_wq, &ic->bitmap_flush_work, 0); in integrity_recalc()
2386 get_area_and_offset(ic, range.logical_sector, &area, &offset); in integrity_recalc()
2387 range.n_sectors = min((sector_t)RECALC_SECTORS, ic->provided_data_sectors - range.logical_sector); in integrity_recalc()
2388 if (!ic->meta_dev) in integrity_recalc()
2389 …range.n_sectors = min(range.n_sectors, ((sector_t)1U << ic->sb->log2_interleave_sectors) - (unsign… in integrity_recalc()
2391 add_new_range_and_wait(ic, &range); in integrity_recalc()
2392 spin_unlock_irq(&ic->endio_wait.lock); in integrity_recalc()
2396 if (ic->mode == 'B') { in integrity_recalc()
2397 if (block_bitmap_op(ic, ic->recalc_bitmap, logical_sector, n_sectors, BITMAP_OP_TEST_ALL_CLEAR)) { in integrity_recalc()
2400 while (block_bitmap_op(ic, ic->recalc_bitmap, logical_sector, in integrity_recalc()
2401 ic->sectors_per_block, BITMAP_OP_TEST_ALL_CLEAR)) { in integrity_recalc()
2402 logical_sector += ic->sectors_per_block; in integrity_recalc()
2403 n_sectors -= ic->sectors_per_block; in integrity_recalc()
2406 while (block_bitmap_op(ic, ic->recalc_bitmap, logical_sector + n_sectors - ic->sectors_per_block, in integrity_recalc()
2407 ic->sectors_per_block, BITMAP_OP_TEST_ALL_CLEAR)) { in integrity_recalc()
2408 n_sectors -= ic->sectors_per_block; in integrity_recalc()
2411 get_area_and_offset(ic, logical_sector, &area, &offset); in integrity_recalc()
2417 recalc_write_super(ic); in integrity_recalc()
2418 if (ic->mode == 'B') { in integrity_recalc()
2419 queue_delayed_work(ic->commit_wq, &ic->bitmap_flush_work, ic->bitmap_flush_interval); in integrity_recalc()
2424 if (unlikely(dm_integrity_failed(ic))) in integrity_recalc()
2430 io_req.mem.ptr.addr = ic->recalc_buffer; in integrity_recalc()
2432 io_req.client = ic->io; in integrity_recalc()
2433 io_loc.bdev = ic->dev->bdev; in integrity_recalc()
2434 io_loc.sector = get_data_sector(ic, area, offset); in integrity_recalc()
2439 dm_integrity_io_error(ic, "reading data", r); in integrity_recalc()
2443 t = ic->recalc_tags; in integrity_recalc()
2444 for (i = 0; i < n_sectors; i += ic->sectors_per_block) { in integrity_recalc()
2445 integrity_sector_checksum(ic, logical_sector + i, ic->recalc_buffer + (i << SECTOR_SHIFT), t); in integrity_recalc()
2446 t += ic->tag_size; in integrity_recalc()
2449 metadata_block = get_metadata_sector_and_offset(ic, area, offset, &metadata_offset); in integrity_recalc()
2451 …r = dm_integrity_rw_tag(ic, ic->recalc_tags, &metadata_block, &metadata_offset, t - ic->recalc_tag… in integrity_recalc()
2453 dm_integrity_io_error(ic, "writing tags", r); in integrity_recalc()
2460 spin_lock_irq(&ic->endio_wait.lock); in integrity_recalc()
2461 remove_range_unlocked(ic, &range); in integrity_recalc()
2462 ic->sb->recalc_sector = cpu_to_le64(range.logical_sector + range.n_sectors); in integrity_recalc()
2466 remove_range(ic, &range); in integrity_recalc()
2470 spin_unlock_irq(&ic->endio_wait.lock); in integrity_recalc()
2472 recalc_write_super(ic); in integrity_recalc()
2478 struct dm_integrity_c *ic = bbs->ic; in bitmap_block_work() local
2495 if (block_bitmap_op(ic, ic->may_write_bitmap, dio->range.logical_sector, in bitmap_block_work()
2497 remove_range(ic, &dio->range); in bitmap_block_work()
2499 queue_work(ic->wait_wq, &dio->work); in bitmap_block_work()
2501 block_bitmap_op(ic, ic->journal, dio->range.logical_sector, in bitmap_block_work()
2510 rw_journal_sectors(ic, REQ_OP_WRITE, REQ_FUA | REQ_SYNC, in bitmap_block_work()
2517 block_bitmap_op(ic, ic->may_write_bitmap, dio->range.logical_sector, in bitmap_block_work()
2520 remove_range(ic, &dio->range); in bitmap_block_work()
2522 queue_work(ic->wait_wq, &dio->work); in bitmap_block_work()
2525 queue_delayed_work(ic->commit_wq, &ic->bitmap_flush_work, ic->bitmap_flush_interval); in bitmap_block_work()
2530 struct dm_integrity_c *ic = container_of(work, struct dm_integrity_c, bitmap_flush_work.work); in bitmap_flush_work() local
2535 dm_integrity_flush_buffers(ic); in bitmap_flush_work()
2538 range.n_sectors = ic->provided_data_sectors; in bitmap_flush_work()
2540 spin_lock_irq(&ic->endio_wait.lock); in bitmap_flush_work()
2541 add_new_range_and_wait(ic, &range); in bitmap_flush_work()
2542 spin_unlock_irq(&ic->endio_wait.lock); in bitmap_flush_work()
2544 dm_integrity_flush_buffers(ic); in bitmap_flush_work()
2545 if (ic->meta_dev) in bitmap_flush_work()
2546 blkdev_issue_flush(ic->dev->bdev, GFP_NOIO, NULL); in bitmap_flush_work()
2548 limit = ic->provided_data_sectors; in bitmap_flush_work()
2549 if (ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING)) { in bitmap_flush_work()
2550 limit = le64_to_cpu(ic->sb->recalc_sector) in bitmap_flush_work()
2551 >> (ic->sb->log2_sectors_per_block + ic->log2_blocks_per_bitmap_bit) in bitmap_flush_work()
2552 << (ic->sb->log2_sectors_per_block + ic->log2_blocks_per_bitmap_bit); in bitmap_flush_work()
2555 block_bitmap_op(ic, ic->journal, 0, limit, BITMAP_OP_CLEAR); in bitmap_flush_work()
2556 block_bitmap_op(ic, ic->may_write_bitmap, 0, limit, BITMAP_OP_CLEAR); in bitmap_flush_work()
2558 rw_journal_sectors(ic, REQ_OP_WRITE, REQ_FUA | REQ_SYNC, 0, in bitmap_flush_work()
2559 ic->n_bitmap_blocks * (BITMAP_BLOCK_SIZE >> SECTOR_SHIFT), NULL); in bitmap_flush_work()
2561 spin_lock_irq(&ic->endio_wait.lock); in bitmap_flush_work()
2562 remove_range_unlocked(ic, &range); in bitmap_flush_work()
2563 while (unlikely((bio = bio_list_pop(&ic->synchronous_bios)) != NULL)) { in bitmap_flush_work()
2565 spin_unlock_irq(&ic->endio_wait.lock); in bitmap_flush_work()
2566 spin_lock_irq(&ic->endio_wait.lock); in bitmap_flush_work()
2568 spin_unlock_irq(&ic->endio_wait.lock); in bitmap_flush_work()
2572 static void init_journal(struct dm_integrity_c *ic, unsigned start_section, in init_journal() argument
2582 wraparound_section(ic, &i); in init_journal()
2583 for (j = 0; j < ic->journal_section_sectors; j++) { in init_journal()
2584 struct journal_sector *js = access_journal(ic, i, j); in init_journal()
2586 js->commit_id = dm_integrity_commit_id(ic, i, j, commit_seq); in init_journal()
2588 for (j = 0; j < ic->journal_section_entries; j++) { in init_journal()
2589 struct journal_entry *je = access_journal_entry(ic, i, j); in init_journal()
2594 write_journal(ic, start_section, n_sections); in init_journal()
2597 static int find_commit_seq(struct dm_integrity_c *ic, unsigned i, unsigned j, commit_id_t id) in find_commit_seq() argument
2601 if (dm_integrity_commit_id(ic, i, j, k) == id) in find_commit_seq()
2604 dm_integrity_io_error(ic, "journal commit id", -EIO); in find_commit_seq()
2608 static void replay_journal(struct dm_integrity_c *ic) in replay_journal() argument
2618 if (ic->mode == 'R') in replay_journal()
2621 if (ic->journal_uptodate) in replay_journal()
2627 if (!ic->just_formatted) { in replay_journal()
2629 rw_journal(ic, REQ_OP_READ, 0, 0, ic->journal_sections, NULL); in replay_journal()
2630 if (ic->journal_io) in replay_journal()
2631 DEBUG_bytes(lowmem_page_address(ic->journal_io[0].page), 64, "read journal"); in replay_journal()
2632 if (ic->journal_io) { in replay_journal()
2634 crypt_comp.ic = ic; in replay_journal()
2637 encrypt_journal(ic, false, 0, ic->journal_sections, &crypt_comp); in replay_journal()
2640 DEBUG_bytes(lowmem_page_address(ic->journal[0].page), 64, "decrypted journal"); in replay_journal()
2643 if (dm_integrity_failed(ic)) in replay_journal()
2649 for (i = 0; i < ic->journal_sections; i++) { in replay_journal()
2650 for (j = 0; j < ic->journal_section_sectors; j++) { in replay_journal()
2652 struct journal_sector *js = access_journal(ic, i, j); in replay_journal()
2653 k = find_commit_seq(ic, i, j, js->commit_id); in replay_journal()
2660 for (j = 0; j < ic->journal_section_entries; j++) { in replay_journal()
2661 struct journal_entry *je = access_journal_entry(ic, i, j); in replay_journal()
2679 dm_integrity_io_error(ic, "journal commit ids", -EIO); in replay_journal()
2694 if (unlikely(write_start >= ic->journal_sections)) in replay_journal()
2696 wraparound_section(ic, &write_start); in replay_journal()
2699 for (write_sections = 0; write_sections < ic->journal_sections; write_sections++) { in replay_journal()
2700 for (j = 0; j < ic->journal_section_sectors; j++) { in replay_journal()
2701 struct journal_sector *js = access_journal(ic, i, j); in replay_journal()
2703 if (js->commit_id != dm_integrity_commit_id(ic, i, j, want_commit_seq)) { in replay_journal()
2710 i, j, find_commit_seq(ic, i, j, js->commit_id), want_commit_seq); in replay_journal()
2715 if (unlikely(i >= ic->journal_sections)) in replay_journal()
2717 wraparound_section(ic, &i); in replay_journal()
2724 do_journal_write(ic, write_start, write_sections, true); in replay_journal()
2727 if (write_sections == ic->journal_sections && (ic->mode == 'J' || journal_empty)) { in replay_journal()
2729 ic->commit_seq = want_commit_seq; in replay_journal()
2730 DEBUG_print("continuing from section %u, commit seq %d\n", write_start, ic->commit_seq); in replay_journal()
2739 init_journal(ic, s, 1, erase_seq); in replay_journal()
2741 wraparound_section(ic, &s); in replay_journal()
2742 if (ic->journal_sections >= 2) { in replay_journal()
2743 init_journal(ic, s, ic->journal_sections - 2, erase_seq); in replay_journal()
2744 s += ic->journal_sections - 2; in replay_journal()
2745 wraparound_section(ic, &s); in replay_journal()
2746 init_journal(ic, s, 1, erase_seq); in replay_journal()
2750 ic->commit_seq = next_commit_seq(erase_seq); in replay_journal()
2753 ic->committed_section = continue_section; in replay_journal()
2754 ic->n_committed_sections = 0; in replay_journal()
2756 ic->uncommitted_section = continue_section; in replay_journal()
2757 ic->n_uncommitted_sections = 0; in replay_journal()
2759 ic->free_section = continue_section; in replay_journal()
2760 ic->free_section_entry = 0; in replay_journal()
2761 ic->free_sectors = ic->journal_entries; in replay_journal()
2763 ic->journal_tree_root = RB_ROOT; in replay_journal()
2764 for (i = 0; i < ic->journal_entries; i++) in replay_journal()
2765 init_journal_node(&ic->journal_tree[i]); in replay_journal()
2768 static void dm_integrity_enter_synchronous_mode(struct dm_integrity_c *ic) in dm_integrity_enter_synchronous_mode() argument
2772 if (ic->mode == 'B') { in dm_integrity_enter_synchronous_mode()
2773 ic->bitmap_flush_interval = msecs_to_jiffies(10) + 1; in dm_integrity_enter_synchronous_mode()
2774 ic->synchronous_mode = 1; in dm_integrity_enter_synchronous_mode()
2776 cancel_delayed_work_sync(&ic->bitmap_flush_work); in dm_integrity_enter_synchronous_mode()
2777 queue_delayed_work(ic->commit_wq, &ic->bitmap_flush_work, 0); in dm_integrity_enter_synchronous_mode()
2778 flush_workqueue(ic->commit_wq); in dm_integrity_enter_synchronous_mode()
2784 struct dm_integrity_c *ic = container_of(n, struct dm_integrity_c, reboot_notifier); in dm_integrity_reboot() local
2788 dm_integrity_enter_synchronous_mode(ic); in dm_integrity_reboot()
2795 struct dm_integrity_c *ic = (struct dm_integrity_c *)ti->private; in dm_integrity_postsuspend() local
2798 WARN_ON(unregister_reboot_notifier(&ic->reboot_notifier)); in dm_integrity_postsuspend()
2800 del_timer_sync(&ic->autocommit_timer); in dm_integrity_postsuspend()
2802 WRITE_ONCE(ic->suspending, 1); in dm_integrity_postsuspend()
2804 if (ic->recalc_wq) in dm_integrity_postsuspend()
2805 drain_workqueue(ic->recalc_wq); in dm_integrity_postsuspend()
2807 if (ic->mode == 'B') in dm_integrity_postsuspend()
2808 cancel_delayed_work_sync(&ic->bitmap_flush_work); in dm_integrity_postsuspend()
2810 queue_work(ic->commit_wq, &ic->commit_work); in dm_integrity_postsuspend()
2811 drain_workqueue(ic->commit_wq); in dm_integrity_postsuspend()
2813 if (ic->mode == 'J') { in dm_integrity_postsuspend()
2814 if (ic->meta_dev) in dm_integrity_postsuspend()
2815 queue_work(ic->writer_wq, &ic->writer_work); in dm_integrity_postsuspend()
2816 drain_workqueue(ic->writer_wq); in dm_integrity_postsuspend()
2817 dm_integrity_flush_buffers(ic); in dm_integrity_postsuspend()
2820 if (ic->mode == 'B') { in dm_integrity_postsuspend()
2821 dm_integrity_flush_buffers(ic); in dm_integrity_postsuspend()
2824 init_journal(ic, 0, ic->journal_sections, 0); in dm_integrity_postsuspend()
2825 ic->sb->flags &= ~cpu_to_le32(SB_FLAG_DIRTY_BITMAP); in dm_integrity_postsuspend()
2826 r = sync_rw_sb(ic, REQ_OP_WRITE, REQ_FUA); in dm_integrity_postsuspend()
2828 dm_integrity_io_error(ic, "writing superblock", r); in dm_integrity_postsuspend()
2832 WRITE_ONCE(ic->suspending, 0); in dm_integrity_postsuspend()
2834 BUG_ON(!RB_EMPTY_ROOT(&ic->in_progress)); in dm_integrity_postsuspend()
2836 ic->journal_uptodate = true; in dm_integrity_postsuspend()
2841 struct dm_integrity_c *ic = (struct dm_integrity_c *)ti->private; in dm_integrity_resume() local
2845 if (ic->sb->flags & cpu_to_le32(SB_FLAG_DIRTY_BITMAP)) { in dm_integrity_resume()
2847 rw_journal_sectors(ic, REQ_OP_READ, 0, 0, in dm_integrity_resume()
2848 ic->n_bitmap_blocks * (BITMAP_BLOCK_SIZE >> SECTOR_SHIFT), NULL); in dm_integrity_resume()
2849 if (ic->mode == 'B') { in dm_integrity_resume()
2850 if (ic->sb->log2_blocks_per_bitmap_bit == ic->log2_blocks_per_bitmap_bit) { in dm_integrity_resume()
2851 block_bitmap_copy(ic, ic->recalc_bitmap, ic->journal); in dm_integrity_resume()
2852 block_bitmap_copy(ic, ic->may_write_bitmap, ic->journal); in dm_integrity_resume()
2853 if (!block_bitmap_op(ic, ic->journal, 0, ic->provided_data_sectors, in dm_integrity_resume()
2855 ic->sb->flags |= cpu_to_le32(SB_FLAG_RECALCULATING); in dm_integrity_resume()
2856 ic->sb->recalc_sector = cpu_to_le64(0); in dm_integrity_resume()
2860 ic->sb->log2_blocks_per_bitmap_bit, ic->log2_blocks_per_bitmap_bit); in dm_integrity_resume()
2861 ic->sb->log2_blocks_per_bitmap_bit = ic->log2_blocks_per_bitmap_bit; in dm_integrity_resume()
2862 block_bitmap_op(ic, ic->recalc_bitmap, 0, ic->provided_data_sectors, BITMAP_OP_SET); in dm_integrity_resume()
2863 block_bitmap_op(ic, ic->may_write_bitmap, 0, ic->provided_data_sectors, BITMAP_OP_SET); in dm_integrity_resume()
2864 block_bitmap_op(ic, ic->journal, 0, ic->provided_data_sectors, BITMAP_OP_SET); in dm_integrity_resume()
2865 rw_journal_sectors(ic, REQ_OP_WRITE, REQ_FUA | REQ_SYNC, 0, in dm_integrity_resume()
2866 ic->n_bitmap_blocks * (BITMAP_BLOCK_SIZE >> SECTOR_SHIFT), NULL); in dm_integrity_resume()
2867 ic->sb->flags |= cpu_to_le32(SB_FLAG_RECALCULATING); in dm_integrity_resume()
2868 ic->sb->recalc_sector = cpu_to_le64(0); in dm_integrity_resume()
2871 if (!(ic->sb->log2_blocks_per_bitmap_bit == ic->log2_blocks_per_bitmap_bit && in dm_integrity_resume()
2872 … block_bitmap_op(ic, ic->journal, 0, ic->provided_data_sectors, BITMAP_OP_TEST_ALL_CLEAR))) { in dm_integrity_resume()
2873 ic->sb->flags |= cpu_to_le32(SB_FLAG_RECALCULATING); in dm_integrity_resume()
2874 ic->sb->recalc_sector = cpu_to_le64(0); in dm_integrity_resume()
2876 init_journal(ic, 0, ic->journal_sections, 0); in dm_integrity_resume()
2877 replay_journal(ic); in dm_integrity_resume()
2878 ic->sb->flags &= ~cpu_to_le32(SB_FLAG_DIRTY_BITMAP); in dm_integrity_resume()
2880 r = sync_rw_sb(ic, REQ_OP_WRITE, REQ_FUA); in dm_integrity_resume()
2882 dm_integrity_io_error(ic, "writing superblock", r); in dm_integrity_resume()
2884 replay_journal(ic); in dm_integrity_resume()
2885 if (ic->mode == 'B') { in dm_integrity_resume()
2887 ic->sb->flags |= cpu_to_le32(SB_FLAG_DIRTY_BITMAP); in dm_integrity_resume()
2888 ic->sb->log2_blocks_per_bitmap_bit = ic->log2_blocks_per_bitmap_bit; in dm_integrity_resume()
2889 r = sync_rw_sb(ic, REQ_OP_WRITE, REQ_FUA); in dm_integrity_resume()
2891 dm_integrity_io_error(ic, "writing superblock", r); in dm_integrity_resume()
2893 mode = ic->recalculate_flag ? BITMAP_OP_SET : BITMAP_OP_CLEAR; in dm_integrity_resume()
2894 block_bitmap_op(ic, ic->journal, 0, ic->provided_data_sectors, mode); in dm_integrity_resume()
2895 block_bitmap_op(ic, ic->recalc_bitmap, 0, ic->provided_data_sectors, mode); in dm_integrity_resume()
2896 block_bitmap_op(ic, ic->may_write_bitmap, 0, ic->provided_data_sectors, mode); in dm_integrity_resume()
2897 rw_journal_sectors(ic, REQ_OP_WRITE, REQ_FUA | REQ_SYNC, 0, in dm_integrity_resume()
2898 ic->n_bitmap_blocks * (BITMAP_BLOCK_SIZE >> SECTOR_SHIFT), NULL); in dm_integrity_resume()
2902 DEBUG_print("testing recalc: %x\n", ic->sb->flags); in dm_integrity_resume()
2903 if (ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING)) { in dm_integrity_resume()
2904 __u64 recalc_pos = le64_to_cpu(ic->sb->recalc_sector); in dm_integrity_resume()
2905 DEBUG_print("recalc pos: %lx / %lx\n", (long)recalc_pos, ic->provided_data_sectors); in dm_integrity_resume()
2906 if (recalc_pos < ic->provided_data_sectors) { in dm_integrity_resume()
2907 queue_work(ic->recalc_wq, &ic->recalc_work); in dm_integrity_resume()
2908 } else if (recalc_pos > ic->provided_data_sectors) { in dm_integrity_resume()
2909 ic->sb->recalc_sector = cpu_to_le64(ic->provided_data_sectors); in dm_integrity_resume()
2910 recalc_write_super(ic); in dm_integrity_resume()
2914 ic->reboot_notifier.notifier_call = dm_integrity_reboot; in dm_integrity_resume()
2915 ic->reboot_notifier.next = NULL; in dm_integrity_resume()
2916 ic->reboot_notifier.priority = INT_MAX - 1; /* be notified after md and before hardware drivers */ in dm_integrity_resume()
2917 WARN_ON(register_reboot_notifier(&ic->reboot_notifier)); in dm_integrity_resume()
2921 dm_integrity_enter_synchronous_mode(ic); in dm_integrity_resume()
2928 struct dm_integrity_c *ic = (struct dm_integrity_c *)ti->private; in dm_integrity_status() local
2935 (unsigned long long)atomic64_read(&ic->number_of_mismatches), in dm_integrity_status()
2936 (unsigned long long)ic->provided_data_sectors); in dm_integrity_status()
2937 if (ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING)) in dm_integrity_status()
2938 DMEMIT(" %llu", (unsigned long long)le64_to_cpu(ic->sb->recalc_sector)); in dm_integrity_status()
2944 __u64 watermark_percentage = (__u64)(ic->journal_entries - ic->free_sectors_threshold) * 100; in dm_integrity_status()
2945 watermark_percentage += ic->journal_entries / 2; in dm_integrity_status()
2946 do_div(watermark_percentage, ic->journal_entries); in dm_integrity_status()
2948 arg_count += !!ic->meta_dev; in dm_integrity_status()
2949 arg_count += ic->sectors_per_block != 1; in dm_integrity_status()
2950 arg_count += !!(ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING)); in dm_integrity_status()
2951 arg_count += ic->mode == 'J'; in dm_integrity_status()
2952 arg_count += ic->mode == 'J'; in dm_integrity_status()
2953 arg_count += ic->mode == 'B'; in dm_integrity_status()
2954 arg_count += ic->mode == 'B'; in dm_integrity_status()
2955 arg_count += !!ic->internal_hash_alg.alg_string; in dm_integrity_status()
2956 arg_count += !!ic->journal_crypt_alg.alg_string; in dm_integrity_status()
2957 arg_count += !!ic->journal_mac_alg.alg_string; in dm_integrity_status()
2958 DMEMIT("%s %llu %u %c %u", ic->dev->name, (unsigned long long)ic->start, in dm_integrity_status()
2959 ic->tag_size, ic->mode, arg_count); in dm_integrity_status()
2960 if (ic->meta_dev) in dm_integrity_status()
2961 DMEMIT(" meta_device:%s", ic->meta_dev->name); in dm_integrity_status()
2962 if (ic->sectors_per_block != 1) in dm_integrity_status()
2963 DMEMIT(" block_size:%u", ic->sectors_per_block << SECTOR_SHIFT); in dm_integrity_status()
2964 if (ic->recalculate_flag) in dm_integrity_status()
2966 DMEMIT(" journal_sectors:%u", ic->initial_sectors - SB_SECTORS); in dm_integrity_status()
2967 DMEMIT(" interleave_sectors:%u", 1U << ic->sb->log2_interleave_sectors); in dm_integrity_status()
2968 DMEMIT(" buffer_sectors:%u", 1U << ic->log2_buffer_sectors); in dm_integrity_status()
2969 if (ic->mode == 'J') { in dm_integrity_status()
2971 DMEMIT(" commit_time:%u", ic->autocommit_msec); in dm_integrity_status()
2973 if (ic->mode == 'B') { in dm_integrity_status()
2974 …DMEMIT(" sectors_per_bit:%llu", (unsigned long long)ic->sectors_per_block << ic->log2_blocks_per_b… in dm_integrity_status()
2975 DMEMIT(" bitmap_flush_interval:%u", jiffies_to_msecs(ic->bitmap_flush_interval)); in dm_integrity_status()
2980 if (ic->a.alg_string) { \ in dm_integrity_status()
2981 DMEMIT(" %s:%s", n, ic->a.alg_string); \ in dm_integrity_status()
2982 if (ic->a.key_string) \ in dm_integrity_status()
2983 DMEMIT(":%s", ic->a.key_string);\ in dm_integrity_status()
2997 struct dm_integrity_c *ic = ti->private; in dm_integrity_iterate_devices() local
2999 if (!ic->meta_dev) in dm_integrity_iterate_devices()
3000 return fn(ti, ic->dev, ic->start + ic->initial_sectors + ic->metadata_run, ti->len, data); in dm_integrity_iterate_devices()
3002 return fn(ti, ic->dev, 0, ti->len, data); in dm_integrity_iterate_devices()
3007 struct dm_integrity_c *ic = ti->private; in dm_integrity_io_hints() local
3009 if (ic->sectors_per_block > 1) { in dm_integrity_io_hints()
3010 limits->logical_block_size = ic->sectors_per_block << SECTOR_SHIFT; in dm_integrity_io_hints()
3011 limits->physical_block_size = ic->sectors_per_block << SECTOR_SHIFT; in dm_integrity_io_hints()
3012 blk_limits_io_min(limits, ic->sectors_per_block << SECTOR_SHIFT); in dm_integrity_io_hints()
3016 static void calculate_journal_section_size(struct dm_integrity_c *ic) in calculate_journal_section_size() argument
3020 ic->journal_sections = le32_to_cpu(ic->sb->journal_sections); in calculate_journal_section_size()
3021 …ic->journal_entry_size = roundup(offsetof(struct journal_entry, last_bytes[ic->sectors_per_block])… in calculate_journal_section_size()
3024 if (ic->sb->flags & cpu_to_le32(SB_FLAG_HAVE_JOURNAL_MAC)) in calculate_journal_section_size()
3026 ic->journal_entries_per_sector = sector_space / ic->journal_entry_size; in calculate_journal_section_size()
3027 ic->journal_section_entries = ic->journal_entries_per_sector * JOURNAL_BLOCK_SECTORS; in calculate_journal_section_size()
3028 …ic->journal_section_sectors = (ic->journal_section_entries << ic->sb->log2_sectors_per_block) + JO… in calculate_journal_section_size()
3029 ic->journal_entries = ic->journal_section_entries * ic->journal_sections; in calculate_journal_section_size()
3032 static int calculate_device_limits(struct dm_integrity_c *ic) in calculate_device_limits() argument
3036 calculate_journal_section_size(ic); in calculate_device_limits()
3037 initial_sectors = SB_SECTORS + (__u64)ic->journal_section_sectors * ic->journal_sections; in calculate_device_limits()
3038 …if (initial_sectors + METADATA_PADDING_SECTORS >= ic->meta_device_sectors || initial_sectors > UIN… in calculate_device_limits()
3040 ic->initial_sectors = initial_sectors; in calculate_device_limits()
3042 if (!ic->meta_dev) { in calculate_device_limits()
3045 …ic->metadata_run = roundup((__u64)ic->tag_size << (ic->sb->log2_interleave_sectors - ic->sb->log2_… in calculate_device_limits()
3047 if (!(ic->metadata_run & (ic->metadata_run - 1))) in calculate_device_limits()
3048 ic->log2_metadata_run = __ffs(ic->metadata_run); in calculate_device_limits()
3050 ic->log2_metadata_run = -1; in calculate_device_limits()
3052 get_area_and_offset(ic, ic->provided_data_sectors - 1, &last_area, &last_offset); in calculate_device_limits()
3053 last_sector = get_data_sector(ic, last_area, last_offset); in calculate_device_limits()
3054 if (last_sector < ic->start || last_sector >= ic->meta_device_sectors) in calculate_device_limits()
3057 __u64 meta_size = (ic->provided_data_sectors >> ic->sb->log2_sectors_per_block) * ic->tag_size; in calculate_device_limits()
3058 meta_size = (meta_size + ((1U << (ic->log2_buffer_sectors + SECTOR_SHIFT)) - 1)) in calculate_device_limits()
3059 >> (ic->log2_buffer_sectors + SECTOR_SHIFT); in calculate_device_limits()
3060 meta_size <<= ic->log2_buffer_sectors; in calculate_device_limits()
3061 if (ic->initial_sectors + meta_size < ic->initial_sectors || in calculate_device_limits()
3062 ic->initial_sectors + meta_size > ic->meta_device_sectors) in calculate_device_limits()
3064 ic->metadata_run = 1; in calculate_device_limits()
3065 ic->log2_metadata_run = 0; in calculate_device_limits()
3071 static int initialize_superblock(struct dm_integrity_c *ic, unsigned journal_sectors, unsigned inte… in initialize_superblock() argument
3076 memset(ic->sb, 0, SB_SECTORS << SECTOR_SHIFT); in initialize_superblock()
3077 memcpy(ic->sb->magic, SB_MAGIC, 8); in initialize_superblock()
3078 ic->sb->integrity_tag_size = cpu_to_le16(ic->tag_size); in initialize_superblock()
3079 ic->sb->log2_sectors_per_block = __ffs(ic->sectors_per_block); in initialize_superblock()
3080 if (ic->journal_mac_alg.alg_string) in initialize_superblock()
3081 ic->sb->flags |= cpu_to_le32(SB_FLAG_HAVE_JOURNAL_MAC); in initialize_superblock()
3083 calculate_journal_section_size(ic); in initialize_superblock()
3084 journal_sections = journal_sectors / ic->journal_section_sectors; in initialize_superblock()
3088 if (!ic->meta_dev) { in initialize_superblock()
3089 ic->sb->journal_sections = cpu_to_le32(journal_sections); in initialize_superblock()
3092 ic->sb->log2_interleave_sectors = __fls(interleave_sectors); in initialize_superblock()
3093 …ic->sb->log2_interleave_sectors = max((__u8)MIN_LOG2_INTERLEAVE_SECTORS, ic->sb->log2_interleave_s… in initialize_superblock()
3094 …ic->sb->log2_interleave_sectors = min((__u8)MAX_LOG2_INTERLEAVE_SECTORS, ic->sb->log2_interleave_s… in initialize_superblock()
3096 ic->provided_data_sectors = 0; in initialize_superblock()
3097 for (test_bit = fls64(ic->meta_device_sectors) - 1; test_bit >= 3; test_bit--) { in initialize_superblock()
3098 __u64 prev_data_sectors = ic->provided_data_sectors; in initialize_superblock()
3100 ic->provided_data_sectors |= (sector_t)1 << test_bit; in initialize_superblock()
3101 if (calculate_device_limits(ic)) in initialize_superblock()
3102 ic->provided_data_sectors = prev_data_sectors; in initialize_superblock()
3104 if (!ic->provided_data_sectors) in initialize_superblock()
3107 ic->sb->log2_interleave_sectors = 0; in initialize_superblock()
3108 ic->provided_data_sectors = ic->data_device_sectors; in initialize_superblock()
3109 ic->provided_data_sectors &= ~(sector_t)(ic->sectors_per_block - 1); in initialize_superblock()
3112 ic->sb->journal_sections = cpu_to_le32(0); in initialize_superblock()
3114 __u32 prev_journal_sections = le32_to_cpu(ic->sb->journal_sections); in initialize_superblock()
3118 ic->sb->journal_sections = cpu_to_le32(test_journal_sections); in initialize_superblock()
3119 if (calculate_device_limits(ic)) in initialize_superblock()
3120 ic->sb->journal_sections = cpu_to_le32(prev_journal_sections); in initialize_superblock()
3123 if (!le32_to_cpu(ic->sb->journal_sections)) { in initialize_superblock()
3124 if (ic->log2_buffer_sectors > 3) { in initialize_superblock()
3125 ic->log2_buffer_sectors--; in initialize_superblock()
3132 ic->sb->provided_data_sectors = cpu_to_le64(ic->provided_data_sectors); in initialize_superblock()
3134 sb_set_version(ic); in initialize_superblock()
3139 static void dm_integrity_set(struct dm_target *ti, struct dm_integrity_c *ic) in dm_integrity_set() argument
3146 bi.tuple_size = ic->tag_size; in dm_integrity_set()
3148 bi.interval_exp = ic->sb->log2_sectors_per_block + SECTOR_SHIFT; in dm_integrity_set()
3189 static void dm_integrity_free_journal_scatterlist(struct dm_integrity_c *ic, struct scatterlist **s… in dm_integrity_free_journal_scatterlist() argument
3192 for (i = 0; i < ic->journal_sections; i++) in dm_integrity_free_journal_scatterlist()
3197 static struct scatterlist **dm_integrity_alloc_journal_scatterlist(struct dm_integrity_c *ic, in dm_integrity_alloc_journal_scatterlist() argument
3203 sl = kvmalloc_array(ic->journal_sections, in dm_integrity_alloc_journal_scatterlist()
3209 for (i = 0; i < ic->journal_sections; i++) { in dm_integrity_alloc_journal_scatterlist()
3216 page_list_location(ic, i, 0, &start_index, &start_offset); in dm_integrity_alloc_journal_scatterlist()
3217 page_list_location(ic, i, ic->journal_section_sectors - 1, in dm_integrity_alloc_journal_scatterlist()
3225 dm_integrity_free_journal_scatterlist(ic, sl); in dm_integrity_alloc_journal_scatterlist()
3316 static int create_journal(struct dm_integrity_c *ic, char **error) in create_journal() argument
3324 ic->commit_ids[0] = cpu_to_le64(0x1111111111111111ULL); in create_journal()
3325 ic->commit_ids[1] = cpu_to_le64(0x2222222222222222ULL); in create_journal()
3326 ic->commit_ids[2] = cpu_to_le64(0x3333333333333333ULL); in create_journal()
3327 ic->commit_ids[3] = cpu_to_le64(0x4444444444444444ULL); in create_journal()
3329 journal_pages = roundup((__u64)ic->journal_sections * ic->journal_section_sectors, in create_journal()
3337 ic->journal_pages = journal_pages; in create_journal()
3339 ic->journal = dm_integrity_alloc_page_list(ic->journal_pages); in create_journal()
3340 if (!ic->journal) { in create_journal()
3345 if (ic->journal_crypt_alg.alg_string) { in create_journal()
3349 comp.ic = ic; in create_journal()
3350 ic->journal_crypt = crypto_alloc_skcipher(ic->journal_crypt_alg.alg_string, 0, 0); in create_journal()
3351 if (IS_ERR(ic->journal_crypt)) { in create_journal()
3353 r = PTR_ERR(ic->journal_crypt); in create_journal()
3354 ic->journal_crypt = NULL; in create_journal()
3357 ivsize = crypto_skcipher_ivsize(ic->journal_crypt); in create_journal()
3358 blocksize = crypto_skcipher_blocksize(ic->journal_crypt); in create_journal()
3360 if (ic->journal_crypt_alg.key) { in create_journal()
3361 r = crypto_skcipher_setkey(ic->journal_crypt, ic->journal_crypt_alg.key, in create_journal()
3362 ic->journal_crypt_alg.key_size); in create_journal()
3369 ic->journal_crypt_alg.alg_string, blocksize, ivsize); in create_journal()
3371 ic->journal_io = dm_integrity_alloc_page_list(ic->journal_pages); in create_journal()
3372 if (!ic->journal_io) { in create_journal()
3381 req = skcipher_request_alloc(ic->journal_crypt, GFP_KERNEL); in create_journal()
3395 ic->journal_xor = dm_integrity_alloc_page_list(ic->journal_pages); in create_journal()
3396 if (!ic->journal_xor) { in create_journal()
3402 sg = kvmalloc_array(ic->journal_pages + 1, in create_journal()
3410 sg_init_table(sg, ic->journal_pages + 1); in create_journal()
3411 for (i = 0; i < ic->journal_pages; i++) { in create_journal()
3412 char *va = lowmem_page_address(ic->journal_xor[i].page); in create_journal()
3416 sg_set_buf(&sg[i], &ic->commit_ids, sizeof ic->commit_ids); in create_journal()
3419 PAGE_SIZE * ic->journal_pages + sizeof ic->commit_ids, crypt_iv); in create_journal()
3425 r = dm_integrity_failed(ic); in create_journal()
3430 DEBUG_bytes(lowmem_page_address(ic->journal_xor[0].page), 64, "xor data"); in create_journal()
3432 crypto_free_skcipher(ic->journal_crypt); in create_journal()
3433 ic->journal_crypt = NULL; in create_journal()
3437 req = skcipher_request_alloc(ic->journal_crypt, GFP_KERNEL); in create_journal()
3458 ic->journal_scatterlist = dm_integrity_alloc_journal_scatterlist(ic, ic->journal); in create_journal()
3459 if (!ic->journal_scatterlist) { in create_journal()
3464 ic->journal_io_scatterlist = dm_integrity_alloc_journal_scatterlist(ic, ic->journal_io); in create_journal()
3465 if (!ic->journal_io_scatterlist) { in create_journal()
3470 ic->sk_requests = kvmalloc_array(ic->journal_sections, in create_journal()
3473 if (!ic->sk_requests) { in create_journal()
3478 for (i = 0; i < ic->journal_sections; i++) { in create_journal()
3494 r = dm_integrity_failed(ic); in create_journal()
3500 section_req = skcipher_request_alloc(ic->journal_crypt, GFP_KERNEL); in create_journal()
3515 section_req->cryptlen = (size_t)ic->journal_section_sectors << SECTOR_SHIFT; in create_journal()
3516 ic->sk_requests[i] = section_req; in create_journal()
3526 if (ic->commit_ids[j] == ic->commit_ids[i]) { in create_journal()
3527 ic->commit_ids[i] = cpu_to_le64(le64_to_cpu(ic->commit_ids[i]) + 1); in create_journal()
3531 DEBUG_print("commit id %u: %016llx\n", i, ic->commit_ids[i]); in create_journal()
3534 journal_tree_size = (__u64)ic->journal_entries * sizeof(struct journal_node); in create_journal()
3540 ic->journal_tree = kvmalloc(journal_tree_size, GFP_KERNEL); in create_journal()
3541 if (!ic->journal_tree) { in create_journal()
3579 struct dm_integrity_c *ic; in dm_integrity_ctr() local
3603 ic = kzalloc(sizeof(struct dm_integrity_c), GFP_KERNEL); in dm_integrity_ctr()
3604 if (!ic) { in dm_integrity_ctr()
3608 ti->private = ic; in dm_integrity_ctr()
3611 ic->in_progress = RB_ROOT; in dm_integrity_ctr()
3612 INIT_LIST_HEAD(&ic->wait_list); in dm_integrity_ctr()
3613 init_waitqueue_head(&ic->endio_wait); in dm_integrity_ctr()
3614 bio_list_init(&ic->flush_bio_list); in dm_integrity_ctr()
3615 init_waitqueue_head(&ic->copy_to_journal_wait); in dm_integrity_ctr()
3616 init_completion(&ic->crypto_backoff); in dm_integrity_ctr()
3617 atomic64_set(&ic->number_of_mismatches, 0); in dm_integrity_ctr()
3618 ic->bitmap_flush_interval = BITMAP_FLUSH_INTERVAL; in dm_integrity_ctr()
3620 r = dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), &ic->dev); in dm_integrity_ctr()
3631 ic->start = start; in dm_integrity_ctr()
3634 if (sscanf(argv[2], "%u%c", &ic->tag_size, &dummy) != 1 || !ic->tag_size) { in dm_integrity_ctr()
3643 ic->mode = argv[3][0]; in dm_integrity_ctr()
3655 ic->sectors_per_block = 1; in dm_integrity_ctr()
3684 if (ic->meta_dev) { in dm_integrity_ctr()
3685 dm_put_device(ti, ic->meta_dev); in dm_integrity_ctr()
3686 ic->meta_dev = NULL; in dm_integrity_ctr()
3689 dm_table_get_mode(ti->table), &ic->meta_dev); in dm_integrity_ctr()
3702 ic->sectors_per_block = val >> SECTOR_SHIFT; in dm_integrity_ctr()
3710 ic->bitmap_flush_interval = msecs_to_jiffies(val); in dm_integrity_ctr()
3712 r = get_alg_and_key(opt_string, &ic->internal_hash_alg, &ti->error, in dm_integrity_ctr()
3717 r = get_alg_and_key(opt_string, &ic->journal_crypt_alg, &ti->error, in dm_integrity_ctr()
3722 r = get_alg_and_key(opt_string, &ic->journal_mac_alg, &ti->error, in dm_integrity_ctr()
3727 ic->recalculate_flag = true; in dm_integrity_ctr()
3735 ic->data_device_sectors = i_size_read(ic->dev->bdev->bd_inode) >> SECTOR_SHIFT; in dm_integrity_ctr()
3736 if (!ic->meta_dev) in dm_integrity_ctr()
3737 ic->meta_device_sectors = ic->data_device_sectors; in dm_integrity_ctr()
3739 ic->meta_device_sectors = i_size_read(ic->meta_dev->bdev->bd_inode) >> SECTOR_SHIFT; in dm_integrity_ctr()
3743 ic->data_device_sectors >> DEFAULT_JOURNAL_SIZE_FACTOR); in dm_integrity_ctr()
3748 ic->log2_buffer_sectors = min((int)__fls(buffer_sectors), 31 - SECTOR_SHIFT); in dm_integrity_ctr()
3750 r = get_mac(&ic->internal_hash, &ic->internal_hash_alg, &ti->error, in dm_integrity_ctr()
3755 r = get_mac(&ic->journal_mac, &ic->journal_mac_alg, &ti->error, in dm_integrity_ctr()
3760 if (!ic->tag_size) { in dm_integrity_ctr()
3761 if (!ic->internal_hash) { in dm_integrity_ctr()
3766 ic->tag_size = crypto_shash_digestsize(ic->internal_hash); in dm_integrity_ctr()
3768 if (ic->tag_size > MAX_TAG_SIZE) { in dm_integrity_ctr()
3773 if (!(ic->tag_size & (ic->tag_size - 1))) in dm_integrity_ctr()
3774 ic->log2_tag_size = __ffs(ic->tag_size); in dm_integrity_ctr()
3776 ic->log2_tag_size = -1; in dm_integrity_ctr()
3778 if (ic->mode == 'B' && !ic->internal_hash) { in dm_integrity_ctr()
3784 ic->autocommit_jiffies = msecs_to_jiffies(sync_msec); in dm_integrity_ctr()
3785 ic->autocommit_msec = sync_msec; in dm_integrity_ctr()
3786 timer_setup(&ic->autocommit_timer, autocommit_fn, 0); in dm_integrity_ctr()
3788 ic->io = dm_io_client_create(); in dm_integrity_ctr()
3789 if (IS_ERR(ic->io)) { in dm_integrity_ctr()
3790 r = PTR_ERR(ic->io); in dm_integrity_ctr()
3791 ic->io = NULL; in dm_integrity_ctr()
3796 r = mempool_init_slab_pool(&ic->journal_io_mempool, JOURNAL_IO_MEMPOOL, journal_io_cache); in dm_integrity_ctr()
3802 ic->metadata_wq = alloc_workqueue("dm-integrity-metadata", in dm_integrity_ctr()
3804 if (!ic->metadata_wq) { in dm_integrity_ctr()
3814 ic->wait_wq = alloc_workqueue("dm-integrity-wait", WQ_MEM_RECLAIM | WQ_UNBOUND, 1); in dm_integrity_ctr()
3815 if (!ic->wait_wq) { in dm_integrity_ctr()
3821 ic->commit_wq = alloc_workqueue("dm-integrity-commit", WQ_MEM_RECLAIM, 1); in dm_integrity_ctr()
3822 if (!ic->commit_wq) { in dm_integrity_ctr()
3827 INIT_WORK(&ic->commit_work, integrity_commit); in dm_integrity_ctr()
3829 if (ic->mode == 'J' || ic->mode == 'B') { in dm_integrity_ctr()
3830 ic->writer_wq = alloc_workqueue("dm-integrity-writer", WQ_MEM_RECLAIM, 1); in dm_integrity_ctr()
3831 if (!ic->writer_wq) { in dm_integrity_ctr()
3836 INIT_WORK(&ic->writer_work, integrity_writer); in dm_integrity_ctr()
3839 ic->sb = alloc_pages_exact(SB_SECTORS << SECTOR_SHIFT, GFP_KERNEL); in dm_integrity_ctr()
3840 if (!ic->sb) { in dm_integrity_ctr()
3846 r = sync_rw_sb(ic, REQ_OP_READ, 0); in dm_integrity_ctr()
3852 if (memcmp(ic->sb->magic, SB_MAGIC, 8)) { in dm_integrity_ctr()
3853 if (ic->mode != 'R') { in dm_integrity_ctr()
3854 if (memchr_inv(ic->sb, 0, SB_SECTORS << SECTOR_SHIFT)) { in dm_integrity_ctr()
3861 r = initialize_superblock(ic, journal_sectors, interleave_sectors); in dm_integrity_ctr()
3866 if (ic->mode != 'R') in dm_integrity_ctr()
3870 if (!ic->sb->version || ic->sb->version > SB_VERSION_3) { in dm_integrity_ctr()
3875 if (le16_to_cpu(ic->sb->integrity_tag_size) != ic->tag_size) { in dm_integrity_ctr()
3880 if (ic->sb->log2_sectors_per_block != __ffs(ic->sectors_per_block)) { in dm_integrity_ctr()
3885 if (!le32_to_cpu(ic->sb->journal_sections)) { in dm_integrity_ctr()
3891 if (!ic->meta_dev) { in dm_integrity_ctr()
3892 if (ic->sb->log2_interleave_sectors < MIN_LOG2_INTERLEAVE_SECTORS || in dm_integrity_ctr()
3893 ic->sb->log2_interleave_sectors > MAX_LOG2_INTERLEAVE_SECTORS) { in dm_integrity_ctr()
3899 if (ic->sb->log2_interleave_sectors) { in dm_integrity_ctr()
3905 ic->provided_data_sectors = le64_to_cpu(ic->sb->provided_data_sectors); in dm_integrity_ctr()
3906 if (ic->provided_data_sectors != le64_to_cpu(ic->sb->provided_data_sectors)) { in dm_integrity_ctr()
3912 …if (!!(ic->sb->flags & cpu_to_le32(SB_FLAG_HAVE_JOURNAL_MAC)) != !!ic->journal_mac_alg.alg_string)… in dm_integrity_ctr()
3919 r = calculate_device_limits(ic); in dm_integrity_ctr()
3921 if (ic->meta_dev) { in dm_integrity_ctr()
3922 if (ic->log2_buffer_sectors > 3) { in dm_integrity_ctr()
3923 ic->log2_buffer_sectors--; in dm_integrity_ctr()
3933 if (log2_sectors_per_bitmap_bit < ic->sb->log2_sectors_per_block) in dm_integrity_ctr()
3934 log2_sectors_per_bitmap_bit = ic->sb->log2_sectors_per_block; in dm_integrity_ctr()
3936 …bits_in_journal = ((__u64)ic->journal_section_sectors * ic->journal_sections) << (SECTOR_SHIFT + 3… in dm_integrity_ctr()
3939 …while (bits_in_journal < (ic->provided_data_sectors + ((sector_t)1 << log2_sectors_per_bitmap_bit)… in dm_integrity_ctr()
3942 log2_blocks_per_bitmap_bit = log2_sectors_per_bitmap_bit - ic->sb->log2_sectors_per_block; in dm_integrity_ctr()
3943 ic->log2_blocks_per_bitmap_bit = log2_blocks_per_bitmap_bit; in dm_integrity_ctr()
3945 ic->sb->log2_blocks_per_bitmap_bit = log2_blocks_per_bitmap_bit; in dm_integrity_ctr()
3947 n_bitmap_bits = ((ic->provided_data_sectors >> ic->sb->log2_sectors_per_block) in dm_integrity_ctr()
3949 ic->n_bitmap_blocks = DIV_ROUND_UP(n_bitmap_bits, BITMAP_BLOCK_SIZE * 8); in dm_integrity_ctr()
3951 if (!ic->meta_dev) in dm_integrity_ctr()
3952 ic->log2_buffer_sectors = min(ic->log2_buffer_sectors, (__u8)__ffs(ic->metadata_run)); in dm_integrity_ctr()
3954 if (ti->len > ic->provided_data_sectors) { in dm_integrity_ctr()
3961 threshold = (__u64)ic->journal_entries * (100 - journal_watermark); in dm_integrity_ctr()
3964 ic->free_sectors_threshold = threshold; in dm_integrity_ctr()
3967 DEBUG_print(" integrity_tag_size %u\n", le16_to_cpu(ic->sb->integrity_tag_size)); in dm_integrity_ctr()
3968 DEBUG_print(" journal_entry_size %u\n", ic->journal_entry_size); in dm_integrity_ctr()
3969 DEBUG_print(" journal_entries_per_sector %u\n", ic->journal_entries_per_sector); in dm_integrity_ctr()
3970 DEBUG_print(" journal_section_entries %u\n", ic->journal_section_entries); in dm_integrity_ctr()
3971 DEBUG_print(" journal_section_sectors %u\n", ic->journal_section_sectors); in dm_integrity_ctr()
3972 DEBUG_print(" journal_sections %u\n", (unsigned)le32_to_cpu(ic->sb->journal_sections)); in dm_integrity_ctr()
3973 DEBUG_print(" journal_entries %u\n", ic->journal_entries); in dm_integrity_ctr()
3974 DEBUG_print(" log2_interleave_sectors %d\n", ic->sb->log2_interleave_sectors); in dm_integrity_ctr()
3975 DEBUG_print(" data_device_sectors 0x%llx\n", i_size_read(ic->dev->bdev->bd_inode) >> SECTOR_SHIFT); in dm_integrity_ctr()
3976 DEBUG_print(" initial_sectors 0x%x\n", ic->initial_sectors); in dm_integrity_ctr()
3977 DEBUG_print(" metadata_run 0x%x\n", ic->metadata_run); in dm_integrity_ctr()
3978 DEBUG_print(" log2_metadata_run %d\n", ic->log2_metadata_run); in dm_integrity_ctr()
3979 …DEBUG_print(" provided_data_sectors 0x%llx (%llu)\n", (unsigned long long)ic->provided_data_sector… in dm_integrity_ctr()
3980 (unsigned long long)ic->provided_data_sectors); in dm_integrity_ctr()
3981 DEBUG_print(" log2_buffer_sectors %u\n", ic->log2_buffer_sectors); in dm_integrity_ctr()
3984 if (ic->recalculate_flag && !(ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING))) { in dm_integrity_ctr()
3985 ic->sb->flags |= cpu_to_le32(SB_FLAG_RECALCULATING); in dm_integrity_ctr()
3986 ic->sb->recalc_sector = cpu_to_le64(0); in dm_integrity_ctr()
3989 if (ic->internal_hash) { in dm_integrity_ctr()
3990 ic->recalc_wq = alloc_workqueue("dm-integrity-recalc", WQ_MEM_RECLAIM, 1); in dm_integrity_ctr()
3991 if (!ic->recalc_wq ) { in dm_integrity_ctr()
3996 INIT_WORK(&ic->recalc_work, integrity_recalc); in dm_integrity_ctr()
3997 ic->recalc_buffer = vmalloc(RECALC_SECTORS << SECTOR_SHIFT); in dm_integrity_ctr()
3998 if (!ic->recalc_buffer) { in dm_integrity_ctr()
4003 ic->recalc_tags = kvmalloc_array(RECALC_SECTORS >> ic->sb->log2_sectors_per_block, in dm_integrity_ctr()
4004 ic->tag_size, GFP_KERNEL); in dm_integrity_ctr()
4005 if (!ic->recalc_tags) { in dm_integrity_ctr()
4012 ic->bufio = dm_bufio_client_create(ic->meta_dev ? ic->meta_dev->bdev : ic->dev->bdev, in dm_integrity_ctr()
4013 1U << (SECTOR_SHIFT + ic->log2_buffer_sectors), 1, 0, NULL, NULL); in dm_integrity_ctr()
4014 if (IS_ERR(ic->bufio)) { in dm_integrity_ctr()
4015 r = PTR_ERR(ic->bufio); in dm_integrity_ctr()
4017 ic->bufio = NULL; in dm_integrity_ctr()
4020 dm_bufio_set_sector_offset(ic->bufio, ic->start + ic->initial_sectors); in dm_integrity_ctr()
4022 if (ic->mode != 'R') { in dm_integrity_ctr()
4023 r = create_journal(ic, &ti->error); in dm_integrity_ctr()
4029 if (ic->mode == 'B') { in dm_integrity_ctr()
4031 unsigned n_bitmap_pages = DIV_ROUND_UP(ic->n_bitmap_blocks, PAGE_SIZE / BITMAP_BLOCK_SIZE); in dm_integrity_ctr()
4033 ic->recalc_bitmap = dm_integrity_alloc_page_list(n_bitmap_pages); in dm_integrity_ctr()
4034 if (!ic->recalc_bitmap) { in dm_integrity_ctr()
4038 ic->may_write_bitmap = dm_integrity_alloc_page_list(n_bitmap_pages); in dm_integrity_ctr()
4039 if (!ic->may_write_bitmap) { in dm_integrity_ctr()
4043 ic->bbs = kvmalloc_array(ic->n_bitmap_blocks, sizeof(struct bitmap_block_status), GFP_KERNEL); in dm_integrity_ctr()
4044 if (!ic->bbs) { in dm_integrity_ctr()
4048 INIT_DELAYED_WORK(&ic->bitmap_flush_work, bitmap_flush_work); in dm_integrity_ctr()
4049 for (i = 0; i < ic->n_bitmap_blocks; i++) { in dm_integrity_ctr()
4050 struct bitmap_block_status *bbs = &ic->bbs[i]; in dm_integrity_ctr()
4054 bbs->ic = ic; in dm_integrity_ctr()
4063 bbs->bitmap = lowmem_page_address(ic->journal[pl_index].page) + pl_offset; in dm_integrity_ctr()
4070 init_journal(ic, 0, ic->journal_sections, 0); in dm_integrity_ctr()
4071 r = dm_integrity_failed(ic); in dm_integrity_ctr()
4076 r = sync_rw_sb(ic, REQ_OP_WRITE, REQ_FUA); in dm_integrity_ctr()
4081 ic->just_formatted = true; in dm_integrity_ctr()
4084 if (!ic->meta_dev) { in dm_integrity_ctr()
4085 r = dm_set_target_max_io_len(ti, 1U << ic->sb->log2_interleave_sectors); in dm_integrity_ctr()
4089 if (ic->mode == 'B') { in dm_integrity_ctr()
4090 …unsigned max_io_len = ((sector_t)ic->sectors_per_block << ic->log2_blocks_per_bitmap_bit) * (BITMA… in dm_integrity_ctr()
4101 if (!ic->internal_hash) in dm_integrity_ctr()
4102 dm_integrity_set(ti, ic); in dm_integrity_ctr()
4116 struct dm_integrity_c *ic = ti->private; in dm_integrity_dtr() local
4118 BUG_ON(!RB_EMPTY_ROOT(&ic->in_progress)); in dm_integrity_dtr()
4119 BUG_ON(!list_empty(&ic->wait_list)); in dm_integrity_dtr()
4121 if (ic->metadata_wq) in dm_integrity_dtr()
4122 destroy_workqueue(ic->metadata_wq); in dm_integrity_dtr()
4123 if (ic->wait_wq) in dm_integrity_dtr()
4124 destroy_workqueue(ic->wait_wq); in dm_integrity_dtr()
4125 if (ic->commit_wq) in dm_integrity_dtr()
4126 destroy_workqueue(ic->commit_wq); in dm_integrity_dtr()
4127 if (ic->writer_wq) in dm_integrity_dtr()
4128 destroy_workqueue(ic->writer_wq); in dm_integrity_dtr()
4129 if (ic->recalc_wq) in dm_integrity_dtr()
4130 destroy_workqueue(ic->recalc_wq); in dm_integrity_dtr()
4131 vfree(ic->recalc_buffer); in dm_integrity_dtr()
4132 kvfree(ic->recalc_tags); in dm_integrity_dtr()
4133 kvfree(ic->bbs); in dm_integrity_dtr()
4134 if (ic->bufio) in dm_integrity_dtr()
4135 dm_bufio_client_destroy(ic->bufio); in dm_integrity_dtr()
4136 mempool_exit(&ic->journal_io_mempool); in dm_integrity_dtr()
4137 if (ic->io) in dm_integrity_dtr()
4138 dm_io_client_destroy(ic->io); in dm_integrity_dtr()
4139 if (ic->dev) in dm_integrity_dtr()
4140 dm_put_device(ti, ic->dev); in dm_integrity_dtr()
4141 if (ic->meta_dev) in dm_integrity_dtr()
4142 dm_put_device(ti, ic->meta_dev); in dm_integrity_dtr()
4143 dm_integrity_free_page_list(ic->journal); in dm_integrity_dtr()
4144 dm_integrity_free_page_list(ic->journal_io); in dm_integrity_dtr()
4145 dm_integrity_free_page_list(ic->journal_xor); in dm_integrity_dtr()
4146 dm_integrity_free_page_list(ic->recalc_bitmap); in dm_integrity_dtr()
4147 dm_integrity_free_page_list(ic->may_write_bitmap); in dm_integrity_dtr()
4148 if (ic->journal_scatterlist) in dm_integrity_dtr()
4149 dm_integrity_free_journal_scatterlist(ic, ic->journal_scatterlist); in dm_integrity_dtr()
4150 if (ic->journal_io_scatterlist) in dm_integrity_dtr()
4151 dm_integrity_free_journal_scatterlist(ic, ic->journal_io_scatterlist); in dm_integrity_dtr()
4152 if (ic->sk_requests) { in dm_integrity_dtr()
4155 for (i = 0; i < ic->journal_sections; i++) { in dm_integrity_dtr()
4156 struct skcipher_request *req = ic->sk_requests[i]; in dm_integrity_dtr()
4162 kvfree(ic->sk_requests); in dm_integrity_dtr()
4164 kvfree(ic->journal_tree); in dm_integrity_dtr()
4165 if (ic->sb) in dm_integrity_dtr()
4166 free_pages_exact(ic->sb, SB_SECTORS << SECTOR_SHIFT); in dm_integrity_dtr()
4168 if (ic->internal_hash) in dm_integrity_dtr()
4169 crypto_free_shash(ic->internal_hash); in dm_integrity_dtr()
4170 free_alg(&ic->internal_hash_alg); in dm_integrity_dtr()
4172 if (ic->journal_crypt) in dm_integrity_dtr()
4173 crypto_free_skcipher(ic->journal_crypt); in dm_integrity_dtr()
4174 free_alg(&ic->journal_crypt_alg); in dm_integrity_dtr()
4176 if (ic->journal_mac) in dm_integrity_dtr()
4177 crypto_free_shash(ic->journal_mac); in dm_integrity_dtr()
4178 free_alg(&ic->journal_mac_alg); in dm_integrity_dtr()
4180 kfree(ic); in dm_integrity_dtr()