mirror of
https://github.com/torvalds/linux.git
synced 2024-11-12 23:23:03 +00:00
- Misc VDO fixes
- Remove unused declarations dm_get_rq_mapinfo() and dm_zone_map_bio() - Dm-delay: Improve kernel documentation - Dm-crypt: Allow to specify the integrity key size as an option - Dm-bufio: Remove pointless NULL check - Small code cleanups: Use ERR_CAST; remove unlikely() around IS_ERR; use __assign_bit - Dm-integrity: Fix gcc 5 warning; convert comma to semicolon; fix smatch warning - Dm-integrity: Support recalculation in the 'I' mode - Revert "dm: requeue IO if mapping table not yet available" - Dm-crypt: Small refactoring to make the code more readable - Dm-cache: Remove pointless error check - Dm: Fix spelling errors - Dm-verity: Restart or panic on an I/O error if restart or panic was requested - Dm-verity: Fallback to platform keyring also if key in trusted keyring is rejected -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRnH8MwLyZDhyYfesYTAyx9YGnhbQUCZvapzRQcbXBhdG9ja2FA cmVkaGF0LmNvbQAKCRATAyx9YGnhbdKAAP4gHNU7aRmwTPcmvytEqBO4Pcz4eGB/ tytj2+o1orph3AD/YD2X75YHOrdNKTLq+N0ecetAt0yDVUnJAUtKiOnx6Q8= =0f9T -----END PGP SIGNATURE----- Merge tag 'for-6.12/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper updates from Mikulas Patocka: - Misc VDO fixes - Remove unused declarations dm_get_rq_mapinfo() and dm_zone_map_bio() - Dm-delay: Improve kernel documentation - Dm-crypt: Allow to specify the integrity key size as an option - Dm-bufio: Remove pointless NULL check - Small code cleanups: Use ERR_CAST; remove unlikely() around IS_ERR; use __assign_bit - Dm-integrity: Fix gcc 5 warning; convert comma to semicolon; fix smatch warning - Dm-integrity: Support recalculation in the 'I' mode - Revert "dm: requeue IO if mapping table not yet available" - Dm-crypt: Small refactoring to make the code more readable - Dm-cache: Remove pointless error check - Dm: Fix spelling errors - Dm-verity: Restart or panic on an I/O error if restart or panic was requested - Dm-verity: Fallback to platform keyring also if key in trusted keyring is rejected * tag 'for-6.12/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (26 commits) dm verity: fallback to platform keyring also if key in trusted keyring is rejected dm-verity: restart or panic on an I/O error dm: fix spelling errors dm-cache: remove pointless error check dm vdo: handle unaligned discards correctly dm vdo indexer: Convert comma to semicolon dm-crypt: Use common error handling code in crypt_set_keyring_key() dm-crypt: Use up_read() together with key_put() only once in crypt_set_keyring_key() Revert "dm: requeue IO if mapping table not yet available" dm-integrity: check mac_size against HASH_MAX_DIGESTSIZE in sb_mac() dm-integrity: support recalculation in the 'I' mode dm integrity: Convert comma to semicolon dm integrity: fix gcc 5 warning dm: Make use of __assign_bit() API dm integrity: Remove extra unlikely helper dm: Convert to use ERR_CAST() dm bufio: Remove NULL check of list_entry() dm-crypt: Allow to specify the integrity key size as option dm: Remove unused declaration and empty definition "dm_zone_map_bio" dm delay: enhance kernel documentation ...
This commit is contained in:
Linus Torvalds
commit
e477dba544
@ -3,29 +3,52 @@ dm-delay
|
||||
========
|
||||
|
||||
Device-Mapper's "delay" target delays reads and/or writes
|
||||
and maps them to different devices.
|
||||
and/or flushs and optionally maps them to different devices.
|
||||
|
||||
Parameters::
|
||||
Arguments::
|
||||
|
||||
<device> <offset> <delay> [<write_device> <write_offset> <write_delay>
|
||||
[<flush_device> <flush_offset> <flush_delay>]]
|
||||
|
||||
With separate write parameters, the first set is only used for reads.
|
||||
Table line has to either have 3, 6 or 9 arguments:
|
||||
|
||||
3: apply offset and delay to read, write and flush operations on device
|
||||
|
||||
6: apply offset and delay to device, also apply write_offset and write_delay
|
||||
to write and flush operations on optionally different write_device with
|
||||
optionally different sector offset
|
||||
|
||||
9: same as 6 arguments plus define flush_offset and flush_delay explicitely
|
||||
on/with optionally different flush_device/flush_offset.
|
||||
|
||||
Offsets are specified in sectors.
|
||||
|
||||
Delays are specified in milliseconds.
|
||||
|
||||
|
||||
Example scripts
|
||||
===============
|
||||
|
||||
::
|
||||
|
||||
#!/bin/sh
|
||||
# Create device delaying rw operation for 500ms
|
||||
echo "0 `blockdev --getsz $1` delay $1 0 500" | dmsetup create delayed
|
||||
#
|
||||
# Create mapped device named "delayed" delaying read, write and flush operations for 500ms.
|
||||
#
|
||||
dmsetup create delayed --table "0 `blockdev --getsz $1` delay $1 0 500"
|
||||
|
||||
::
|
||||
|
||||
#!/bin/sh
|
||||
# Create device delaying only write operation for 500ms and
|
||||
# splitting reads and writes to different devices $1 $2
|
||||
echo "0 `blockdev --getsz $1` delay $1 0 0 $2 0 500" | dmsetup create delayed
|
||||
#
|
||||
# Create mapped device delaying write and flush operations for 400ms and
|
||||
# splitting reads to device $1 but writes and flushs to different device $2
|
||||
# to different offsets of 2048 and 4096 sectors respectively.
|
||||
#
|
||||
dmsetup create delayed --table "0 `blockdev --getsz $1` delay $1 2048 0 $2 4096 400"
|
||||
|
||||
::
|
||||
#!/bin/sh
|
||||
#
|
||||
# Create mapped device delaying reads for 50ms, writes for 100ms and flushs for 333ms
|
||||
# onto the same backing device at offset 0 sectors.
|
||||
#
|
||||
dmsetup create delayed --table "0 `blockdev --getsz $1` delay $1 0 50 $2 0 100 $1 0 333"
|
||||
|
||||
@ -160,6 +160,10 @@ iv_large_sectors
|
||||
The <iv_offset> must be multiple of <sector_size> (in 512 bytes units)
|
||||
if this flag is specified.
|
||||
|
||||
integrity_key_size:<bytes>
|
||||
Use an integrity key of <bytes> size instead of using an integrity key size
|
||||
of the digest size of the used HMAC algorithm.
|
||||
|
||||
|
||||
Module parameters::
|
||||
max_read_size
|
||||
|
||||
@ -251,7 +251,12 @@ The messages are:
|
||||
by the vdostats userspace program to interpret the output
|
||||
buffer.
|
||||
|
||||
dump:
|
||||
config:
|
||||
Outputs useful vdo configuration information. Mostly used
|
||||
by users who want to recreate a similar VDO volume and
|
||||
want to know the creation configuration used.
|
||||
|
||||
dump:
|
||||
Dumps many internal structures to the system log. This is
|
||||
not always safe to run, so it should only be used to debug
|
||||
a hung vdo. Optional parameters to specify structures to
|
||||
|
||||
@ -529,9 +529,6 @@ static struct dm_buffer *list_to_buffer(struct list_head *l)
|
||||
{
|
||||
struct lru_entry *le = list_entry(l, struct lru_entry, list);
|
||||
|
||||
if (!le)
|
||||
return NULL;
|
||||
|
||||
return le_to_buffer(le);
|
||||
}
|
||||
|
||||
|
||||
@ -1368,7 +1368,7 @@ static void mg_copy(struct work_struct *ws)
|
||||
*/
|
||||
bool rb = bio_detain_shared(mg->cache, mg->op->oblock, mg->overwrite_bio);
|
||||
|
||||
BUG_ON(rb); /* An exclussive lock must _not_ be held for this block */
|
||||
BUG_ON(rb); /* An exclusive lock must _not_ be held for this block */
|
||||
mg->overwrite_bio = NULL;
|
||||
inc_io_migrations(mg->cache);
|
||||
mg_full_copy(ws);
|
||||
@ -3200,8 +3200,6 @@ static int parse_cblock_range(struct cache *cache, const char *str,
|
||||
* Try and parse form (ii) first.
|
||||
*/
|
||||
r = sscanf(str, "%llu-%llu%c", &b, &e, &dummy);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
if (r == 2) {
|
||||
result->begin = to_cblock(b);
|
||||
@ -3213,8 +3211,6 @@ static int parse_cblock_range(struct cache *cache, const char *str,
|
||||
* That didn't work, try form (i).
|
||||
*/
|
||||
r = sscanf(str, "%llu%c", &b, &dummy);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
if (r == 1) {
|
||||
result->begin = to_cblock(b);
|
||||
|
||||
@ -530,10 +530,7 @@ static int __load_bitset_in_core(struct dm_clone_metadata *cmd)
|
||||
return r;
|
||||
|
||||
for (i = 0; ; i++) {
|
||||
if (dm_bitset_cursor_get_value(&c))
|
||||
__set_bit(i, cmd->region_map);
|
||||
else
|
||||
__clear_bit(i, cmd->region_map);
|
||||
__assign_bit(i, cmd->region_map, dm_bitset_cursor_get_value(&c));
|
||||
|
||||
if (i >= (cmd->nr_regions - 1))
|
||||
break;
|
||||
|
||||
@ -147,6 +147,7 @@ enum cipher_flags {
|
||||
CRYPT_MODE_INTEGRITY_AEAD, /* Use authenticated mode for cipher */
|
||||
CRYPT_IV_LARGE_SECTORS, /* Calculate IV from sector_size, not 512B sectors */
|
||||
CRYPT_ENCRYPT_PREPROCESS, /* Must preprocess data for encryption (elephant) */
|
||||
CRYPT_KEY_MAC_SIZE_SET, /* The integrity_key_size option was used */
|
||||
};
|
||||
|
||||
/*
|
||||
@ -2613,35 +2614,31 @@ static int crypt_set_keyring_key(struct crypt_config *cc, const char *key_string
|
||||
|
||||
key = request_key(type, key_desc + 1, NULL);
|
||||
if (IS_ERR(key)) {
|
||||
kfree_sensitive(new_key_string);
|
||||
return PTR_ERR(key);
|
||||
ret = PTR_ERR(key);
|
||||
goto free_new_key_string;
|
||||
}
|
||||
|
||||
down_read(&key->sem);
|
||||
|
||||
ret = set_key(cc, key);
|
||||
if (ret < 0) {
|
||||
up_read(&key->sem);
|
||||
key_put(key);
|
||||
kfree_sensitive(new_key_string);
|
||||
return ret;
|
||||
}
|
||||
|
||||
up_read(&key->sem);
|
||||
key_put(key);
|
||||
if (ret < 0)
|
||||
goto free_new_key_string;
|
||||
|
||||
/* clear the flag since following operations may invalidate previously valid key */
|
||||
clear_bit(DM_CRYPT_KEY_VALID, &cc->flags);
|
||||
|
||||
ret = crypt_setkey(cc);
|
||||
if (ret)
|
||||
goto free_new_key_string;
|
||||
|
||||
if (!ret) {
|
||||
set_bit(DM_CRYPT_KEY_VALID, &cc->flags);
|
||||
kfree_sensitive(cc->key_string);
|
||||
cc->key_string = new_key_string;
|
||||
} else
|
||||
kfree_sensitive(new_key_string);
|
||||
set_bit(DM_CRYPT_KEY_VALID, &cc->flags);
|
||||
kfree_sensitive(cc->key_string);
|
||||
cc->key_string = new_key_string;
|
||||
return 0;
|
||||
|
||||
free_new_key_string:
|
||||
kfree_sensitive(new_key_string);
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -2937,7 +2934,8 @@ static int crypt_ctr_auth_cipher(struct crypt_config *cc, char *cipher_api)
|
||||
if (IS_ERR(mac))
|
||||
return PTR_ERR(mac);
|
||||
|
||||
cc->key_mac_size = crypto_ahash_digestsize(mac);
|
||||
if (!test_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags))
|
||||
cc->key_mac_size = crypto_ahash_digestsize(mac);
|
||||
crypto_free_ahash(mac);
|
||||
|
||||
cc->authenc_key = kmalloc(crypt_authenckey_size(cc), GFP_KERNEL);
|
||||
@ -3219,6 +3217,13 @@ static int crypt_ctr_optional(struct dm_target *ti, unsigned int argc, char **ar
|
||||
cc->cipher_auth = kstrdup(sval, GFP_KERNEL);
|
||||
if (!cc->cipher_auth)
|
||||
return -ENOMEM;
|
||||
} else if (sscanf(opt_string, "integrity_key_size:%u%c", &val, &dummy) == 1) {
|
||||
if (!val) {
|
||||
ti->error = "Invalid integrity_key_size argument";
|
||||
return -EINVAL;
|
||||
}
|
||||
cc->key_mac_size = val;
|
||||
set_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags);
|
||||
} else if (sscanf(opt_string, "sector_size:%hu%c", &cc->sector_size, &dummy) == 1) {
|
||||
if (cc->sector_size < (1 << SECTOR_SHIFT) ||
|
||||
cc->sector_size > 4096 ||
|
||||
@ -3607,10 +3612,10 @@ static void crypt_status(struct dm_target *ti, status_type_t type,
|
||||
num_feature_args += test_bit(DM_CRYPT_NO_OFFLOAD, &cc->flags);
|
||||
num_feature_args += test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags);
|
||||
num_feature_args += test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags);
|
||||
num_feature_args += !!cc->used_tag_size;
|
||||
num_feature_args += cc->sector_size != (1 << SECTOR_SHIFT);
|
||||
num_feature_args += test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags);
|
||||
if (cc->used_tag_size)
|
||||
num_feature_args++;
|
||||
num_feature_args += test_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags);
|
||||
if (num_feature_args) {
|
||||
DMEMIT(" %d", num_feature_args);
|
||||
if (ti->num_discard_bios)
|
||||
@ -3631,6 +3636,8 @@ static void crypt_status(struct dm_target *ti, status_type_t type,
|
||||
DMEMIT(" sector_size:%d", cc->sector_size);
|
||||
if (test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags))
|
||||
DMEMIT(" iv_large_sectors");
|
||||
if (test_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags))
|
||||
DMEMIT(" integrity_key_size:%u", cc->key_mac_size);
|
||||
}
|
||||
break;
|
||||
|
||||
@ -3758,7 +3765,7 @@ static void crypt_io_hints(struct dm_target *ti, struct queue_limits *limits)
|
||||
|
||||
static struct target_type crypt_target = {
|
||||
.name = "crypt",
|
||||
.version = {1, 27, 0},
|
||||
.version = {1, 28, 0},
|
||||
.module = THIS_MODULE,
|
||||
.ctr = crypt_ctr,
|
||||
.dtr = crypt_dtr,
|
||||
|
||||
@ -284,6 +284,7 @@ struct dm_integrity_c {
|
||||
|
||||
mempool_t recheck_pool;
|
||||
struct bio_set recheck_bios;
|
||||
struct bio_set recalc_bios;
|
||||
|
||||
struct notifier_block reboot_notifier;
|
||||
};
|
||||
@ -321,7 +322,9 @@ struct dm_integrity_io {
|
||||
struct dm_bio_details bio_details;
|
||||
|
||||
char *integrity_payload;
|
||||
unsigned payload_len;
|
||||
bool integrity_payload_from_mempool;
|
||||
bool integrity_range_locked;
|
||||
};
|
||||
|
||||
struct journal_completion {
|
||||
@ -359,7 +362,7 @@ static struct kmem_cache *journal_io_cache;
|
||||
#endif
|
||||
|
||||
static void dm_integrity_map_continue(struct dm_integrity_io *dio, bool from_map);
|
||||
static int dm_integrity_map_inline(struct dm_integrity_io *dio);
|
||||
static int dm_integrity_map_inline(struct dm_integrity_io *dio, bool from_map);
|
||||
static void integrity_bio_wait(struct work_struct *w);
|
||||
static void dm_integrity_dtr(struct dm_target *ti);
|
||||
|
||||
@ -491,7 +494,8 @@ static int sb_mac(struct dm_integrity_c *ic, bool wr)
|
||||
__u8 *sb = (__u8 *)ic->sb;
|
||||
__u8 *mac = sb + (1 << SECTOR_SHIFT) - mac_size;
|
||||
|
||||
if (sizeof(struct superblock) + mac_size > 1 << SECTOR_SHIFT) {
|
||||
if (sizeof(struct superblock) + mac_size > 1 << SECTOR_SHIFT ||
|
||||
mac_size > HASH_MAX_DIGESTSIZE) {
|
||||
dm_integrity_io_error(ic, "digest is too long", -EINVAL);
|
||||
return -EINVAL;
|
||||
}
|
||||
@ -1500,15 +1504,15 @@ static void dm_integrity_flush_buffers(struct dm_integrity_c *ic, bool flush_dat
|
||||
if (!ic->meta_dev)
|
||||
flush_data = false;
|
||||
if (flush_data) {
|
||||
fr.io_req.bi_opf = REQ_OP_WRITE | REQ_PREFLUSH | REQ_SYNC,
|
||||
fr.io_req.mem.type = DM_IO_KMEM,
|
||||
fr.io_req.mem.ptr.addr = NULL,
|
||||
fr.io_req.notify.fn = flush_notify,
|
||||
fr.io_req.bi_opf = REQ_OP_WRITE | REQ_PREFLUSH | REQ_SYNC;
|
||||
fr.io_req.mem.type = DM_IO_KMEM;
|
||||
fr.io_req.mem.ptr.addr = NULL;
|
||||
fr.io_req.notify.fn = flush_notify;
|
||||
fr.io_req.notify.context = &fr;
|
||||
fr.io_req.client = dm_bufio_get_dm_io_client(ic->bufio),
|
||||
fr.io_reg.bdev = ic->dev->bdev,
|
||||
fr.io_reg.sector = 0,
|
||||
fr.io_reg.count = 0,
|
||||
fr.io_req.client = dm_bufio_get_dm_io_client(ic->bufio);
|
||||
fr.io_reg.bdev = ic->dev->bdev;
|
||||
fr.io_reg.sector = 0;
|
||||
fr.io_reg.count = 0;
|
||||
fr.ic = ic;
|
||||
init_completion(&fr.comp);
|
||||
r = dm_io(&fr.io_req, 1, &fr.io_reg, NULL, IOPRIO_DEFAULT);
|
||||
@ -1946,8 +1950,13 @@ static int dm_integrity_map(struct dm_target *ti, struct bio *bio)
|
||||
dio->bi_status = 0;
|
||||
dio->op = bio_op(bio);
|
||||
|
||||
if (ic->mode == 'I')
|
||||
return dm_integrity_map_inline(dio);
|
||||
if (ic->mode == 'I') {
|
||||
bio->bi_iter.bi_sector = dm_target_offset(ic->ti, bio->bi_iter.bi_sector);
|
||||
dio->integrity_payload = NULL;
|
||||
dio->integrity_payload_from_mempool = false;
|
||||
dio->integrity_range_locked = false;
|
||||
return dm_integrity_map_inline(dio, true);
|
||||
}
|
||||
|
||||
if (unlikely(dio->op == REQ_OP_DISCARD)) {
|
||||
if (ti->max_io_len) {
|
||||
@ -2397,15 +2406,13 @@ journal_read_write:
|
||||
do_endio_flush(ic, dio);
|
||||
}
|
||||
|
||||
static int dm_integrity_map_inline(struct dm_integrity_io *dio)
|
||||
static int dm_integrity_map_inline(struct dm_integrity_io *dio, bool from_map)
|
||||
{
|
||||
struct dm_integrity_c *ic = dio->ic;
|
||||
struct bio *bio = dm_bio_from_per_bio_data(dio, sizeof(struct dm_integrity_io));
|
||||
struct bio_integrity_payload *bip;
|
||||
unsigned payload_len, digest_size, extra_size, ret;
|
||||
|
||||
dio->integrity_payload = NULL;
|
||||
dio->integrity_payload_from_mempool = false;
|
||||
unsigned ret;
|
||||
sector_t recalc_sector;
|
||||
|
||||
if (unlikely(bio_integrity(bio))) {
|
||||
bio->bi_status = BLK_STS_NOTSUPP;
|
||||
@ -2418,28 +2425,67 @@ static int dm_integrity_map_inline(struct dm_integrity_io *dio)
|
||||
return DM_MAPIO_REMAPPED;
|
||||
|
||||
retry:
|
||||
payload_len = ic->tuple_size * (bio_sectors(bio) >> ic->sb->log2_sectors_per_block);
|
||||
digest_size = crypto_shash_digestsize(ic->internal_hash);
|
||||
extra_size = unlikely(digest_size > ic->tag_size) ? digest_size - ic->tag_size : 0;
|
||||
payload_len += extra_size;
|
||||
dio->integrity_payload = kmalloc(payload_len, GFP_NOIO | __GFP_NORETRY | __GFP_NOMEMALLOC | __GFP_NOWARN);
|
||||
if (unlikely(!dio->integrity_payload)) {
|
||||
const unsigned x_size = PAGE_SIZE << 1;
|
||||
if (payload_len > x_size) {
|
||||
unsigned sectors = ((x_size - extra_size) / ic->tuple_size) << ic->sb->log2_sectors_per_block;
|
||||
if (WARN_ON(!sectors || sectors >= bio_sectors(bio))) {
|
||||
bio->bi_status = BLK_STS_NOTSUPP;
|
||||
bio_endio(bio);
|
||||
return DM_MAPIO_SUBMITTED;
|
||||
if (!dio->integrity_payload) {
|
||||
unsigned digest_size, extra_size;
|
||||
dio->payload_len = ic->tuple_size * (bio_sectors(bio) >> ic->sb->log2_sectors_per_block);
|
||||
digest_size = crypto_shash_digestsize(ic->internal_hash);
|
||||
extra_size = unlikely(digest_size > ic->tag_size) ? digest_size - ic->tag_size : 0;
|
||||
dio->payload_len += extra_size;
|
||||
dio->integrity_payload = kmalloc(dio->payload_len, GFP_NOIO | __GFP_NORETRY | __GFP_NOMEMALLOC | __GFP_NOWARN);
|
||||
if (unlikely(!dio->integrity_payload)) {
|
||||
const unsigned x_size = PAGE_SIZE << 1;
|
||||
if (dio->payload_len > x_size) {
|
||||
unsigned sectors = ((x_size - extra_size) / ic->tuple_size) << ic->sb->log2_sectors_per_block;
|
||||
if (WARN_ON(!sectors || sectors >= bio_sectors(bio))) {
|
||||
bio->bi_status = BLK_STS_NOTSUPP;
|
||||
bio_endio(bio);
|
||||
return DM_MAPIO_SUBMITTED;
|
||||
}
|
||||
dm_accept_partial_bio(bio, sectors);
|
||||
goto retry;
|
||||
}
|
||||
dm_accept_partial_bio(bio, sectors);
|
||||
goto retry;
|
||||
}
|
||||
}
|
||||
|
||||
dio->range.logical_sector = bio->bi_iter.bi_sector;
|
||||
dio->range.n_sectors = bio_sectors(bio);
|
||||
|
||||
if (!(ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING)))
|
||||
goto skip_spinlock;
|
||||
#ifdef CONFIG_64BIT
|
||||
/*
|
||||
* On 64-bit CPUs we can optimize the lock away (so that it won't cause
|
||||
* cache line bouncing) and use acquire/release barriers instead.
|
||||
*
|
||||
* Paired with smp_store_release in integrity_recalc_inline.
|
||||
*/
|
||||
recalc_sector = le64_to_cpu(smp_load_acquire(&ic->sb->recalc_sector));
|
||||
if (likely(dio->range.logical_sector + dio->range.n_sectors <= recalc_sector))
|
||||
goto skip_spinlock;
|
||||
#endif
|
||||
spin_lock_irq(&ic->endio_wait.lock);
|
||||
recalc_sector = le64_to_cpu(ic->sb->recalc_sector);
|
||||
if (dio->range.logical_sector + dio->range.n_sectors <= recalc_sector)
|
||||
goto skip_unlock;
|
||||
if (unlikely(!add_new_range(ic, &dio->range, true))) {
|
||||
if (from_map) {
|
||||
spin_unlock_irq(&ic->endio_wait.lock);
|
||||
INIT_WORK(&dio->work, integrity_bio_wait);
|
||||
queue_work(ic->wait_wq, &dio->work);
|
||||
return DM_MAPIO_SUBMITTED;
|
||||
}
|
||||
wait_and_add_new_range(ic, &dio->range);
|
||||
}
|
||||
dio->integrity_range_locked = true;
|
||||
skip_unlock:
|
||||
spin_unlock_irq(&ic->endio_wait.lock);
|
||||
skip_spinlock:
|
||||
|
||||
if (unlikely(!dio->integrity_payload)) {
|
||||
dio->integrity_payload = page_to_virt((struct page *)mempool_alloc(&ic->recheck_pool, GFP_NOIO));
|
||||
dio->integrity_payload_from_mempool = true;
|
||||
}
|
||||
|
||||
bio->bi_iter.bi_sector = dm_target_offset(ic->ti, bio->bi_iter.bi_sector);
|
||||
dio->bio_details.bi_iter = bio->bi_iter;
|
||||
|
||||
if (unlikely(!dm_integrity_check_limits(ic, bio->bi_iter.bi_sector, bio))) {
|
||||
@ -2449,7 +2495,7 @@ retry:
|
||||
bio->bi_iter.bi_sector += ic->start + SB_SECTORS;
|
||||
|
||||
bip = bio_integrity_alloc(bio, GFP_NOIO, 1);
|
||||
if (unlikely(IS_ERR(bip))) {
|
||||
if (IS_ERR(bip)) {
|
||||
bio->bi_status = errno_to_blk_status(PTR_ERR(bip));
|
||||
bio_endio(bio);
|
||||
return DM_MAPIO_SUBMITTED;
|
||||
@ -2470,8 +2516,8 @@ retry:
|
||||
}
|
||||
|
||||
ret = bio_integrity_add_page(bio, virt_to_page(dio->integrity_payload),
|
||||
payload_len, offset_in_page(dio->integrity_payload));
|
||||
if (unlikely(ret != payload_len)) {
|
||||
dio->payload_len, offset_in_page(dio->integrity_payload));
|
||||
if (unlikely(ret != dio->payload_len)) {
|
||||
bio->bi_status = BLK_STS_RESOURCE;
|
||||
bio_endio(bio);
|
||||
return DM_MAPIO_SUBMITTED;
|
||||
@ -2522,7 +2568,7 @@ static void dm_integrity_inline_recheck(struct work_struct *w)
|
||||
}
|
||||
|
||||
bip = bio_integrity_alloc(outgoing_bio, GFP_NOIO, 1);
|
||||
if (unlikely(IS_ERR(bip))) {
|
||||
if (IS_ERR(bip)) {
|
||||
bio_put(outgoing_bio);
|
||||
bio->bi_status = errno_to_blk_status(PTR_ERR(bip));
|
||||
bio_endio(bio);
|
||||
@ -2579,6 +2625,9 @@ static int dm_integrity_end_io(struct dm_target *ti, struct bio *bio, blk_status
|
||||
struct dm_integrity_io *dio = dm_per_bio_data(bio, sizeof(struct dm_integrity_io));
|
||||
if (dio->op == REQ_OP_READ && likely(*status == BLK_STS_OK)) {
|
||||
unsigned pos = 0;
|
||||
if (ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING) &&
|
||||
unlikely(dio->integrity_range_locked))
|
||||
goto skip_check;
|
||||
while (dio->bio_details.bi_iter.bi_size) {
|
||||
char digest[HASH_MAX_DIGESTSIZE];
|
||||
struct bio_vec bv = bio_iter_iovec(bio, dio->bio_details.bi_iter);
|
||||
@ -2598,9 +2647,10 @@ static int dm_integrity_end_io(struct dm_target *ti, struct bio *bio, blk_status
|
||||
bio_advance_iter_single(bio, &dio->bio_details.bi_iter, ic->sectors_per_block << SECTOR_SHIFT);
|
||||
}
|
||||
}
|
||||
if (likely(dio->op == REQ_OP_READ) || likely(dio->op == REQ_OP_WRITE)) {
|
||||
dm_integrity_free_payload(dio);
|
||||
}
|
||||
skip_check:
|
||||
dm_integrity_free_payload(dio);
|
||||
if (unlikely(dio->integrity_range_locked))
|
||||
remove_range(ic, &dio->range);
|
||||
}
|
||||
return DM_ENDIO_DONE;
|
||||
}
|
||||
@ -2608,8 +2658,26 @@ static int dm_integrity_end_io(struct dm_target *ti, struct bio *bio, blk_status
|
||||
static void integrity_bio_wait(struct work_struct *w)
|
||||
{
|
||||
struct dm_integrity_io *dio = container_of(w, struct dm_integrity_io, work);
|
||||
struct dm_integrity_c *ic = dio->ic;
|
||||
|
||||
dm_integrity_map_continue(dio, false);
|
||||
if (ic->mode == 'I') {
|
||||
struct bio *bio = dm_bio_from_per_bio_data(dio, sizeof(struct dm_integrity_io));
|
||||
int r = dm_integrity_map_inline(dio, false);
|
||||
switch (r) {
|
||||
case DM_MAPIO_KILL:
|
||||
bio->bi_status = BLK_STS_IOERR;
|
||||
fallthrough;
|
||||
case DM_MAPIO_REMAPPED:
|
||||
submit_bio_noacct(bio);
|
||||
fallthrough;
|
||||
case DM_MAPIO_SUBMITTED:
|
||||
return;
|
||||
default:
|
||||
BUG();
|
||||
}
|
||||
} else {
|
||||
dm_integrity_map_continue(dio, false);
|
||||
}
|
||||
}
|
||||
|
||||
static void pad_uncommitted(struct dm_integrity_c *ic)
|
||||
@ -3081,6 +3149,133 @@ free_ret:
|
||||
kvfree(recalc_tags);
|
||||
}
|
||||
|
||||
static void integrity_recalc_inline(struct work_struct *w)
|
||||
{
|
||||
struct dm_integrity_c *ic = container_of(w, struct dm_integrity_c, recalc_work);
|
||||
size_t recalc_tags_size;
|
||||
u8 *recalc_buffer = NULL;
|
||||
u8 *recalc_tags = NULL;
|
||||
struct dm_integrity_range range;
|
||||
struct bio *bio;
|
||||
struct bio_integrity_payload *bip;
|
||||
__u8 *t;
|
||||
unsigned int i;
|
||||
int r;
|
||||
unsigned ret;
|
||||
unsigned int super_counter = 0;
|
||||
unsigned recalc_sectors = RECALC_SECTORS;
|
||||
|
||||
retry:
|
||||
recalc_buffer = kmalloc(recalc_sectors << SECTOR_SHIFT, GFP_NOIO | __GFP_NOWARN);
|
||||
if (!recalc_buffer) {
|
||||
oom:
|
||||
recalc_sectors >>= 1;
|
||||
if (recalc_sectors >= 1U << ic->sb->log2_sectors_per_block)
|
||||
goto retry;
|
||||
DMCRIT("out of memory for recalculate buffer - recalculation disabled");
|
||||
goto free_ret;
|
||||
}
|
||||
|
||||
recalc_tags_size = (recalc_sectors >> ic->sb->log2_sectors_per_block) * ic->tuple_size;
|
||||
if (crypto_shash_digestsize(ic->internal_hash) > ic->tuple_size)
|
||||
recalc_tags_size += crypto_shash_digestsize(ic->internal_hash) - ic->tuple_size;
|
||||
recalc_tags = kmalloc(recalc_tags_size, GFP_NOIO | __GFP_NOWARN);
|
||||
if (!recalc_tags) {
|
||||
kfree(recalc_buffer);
|
||||
recalc_buffer = NULL;
|
||||
goto oom;
|
||||
}
|
||||
|
||||
spin_lock_irq(&ic->endio_wait.lock);
|
||||
|
||||
next_chunk:
|
||||
if (unlikely(dm_post_suspending(ic->ti)))
|
||||
goto unlock_ret;
|
||||
|
||||
range.logical_sector = le64_to_cpu(ic->sb->recalc_sector);
|
||||
if (unlikely(range.logical_sector >= ic->provided_data_sectors))
|
||||
goto unlock_ret;
|
||||
range.n_sectors = min((sector_t)recalc_sectors, ic->provided_data_sectors - range.logical_sector);
|
||||
|
||||
add_new_range_and_wait(ic, &range);
|
||||
spin_unlock_irq(&ic->endio_wait.lock);
|
||||
|
||||
if (unlikely(++super_counter == RECALC_WRITE_SUPER)) {
|
||||
recalc_write_super(ic);
|
||||
super_counter = 0;
|
||||
}
|
||||
|
||||
if (unlikely(dm_integrity_failed(ic)))
|
||||
goto err;
|
||||
|
||||
DEBUG_print("recalculating: %llx - %llx\n", range.logical_sector, range.n_sectors);
|
||||
|
||||
bio = bio_alloc_bioset(ic->dev->bdev, 1, REQ_OP_READ, GFP_NOIO, &ic->recalc_bios);
|
||||
bio->bi_iter.bi_sector = ic->start + SB_SECTORS + range.logical_sector;
|
||||
__bio_add_page(bio, virt_to_page(recalc_buffer), range.n_sectors << SECTOR_SHIFT, offset_in_page(recalc_buffer));
|
||||
r = submit_bio_wait(bio);
|
||||
bio_put(bio);
|
||||
if (unlikely(r)) {
|
||||
dm_integrity_io_error(ic, "reading data", r);
|
||||
goto err;
|
||||
}
|
||||
|
||||
t = recalc_tags;
|
||||
for (i = 0; i < range.n_sectors; i += ic->sectors_per_block) {
|
||||
memset(t, 0, ic->tuple_size);
|
||||
integrity_sector_checksum(ic, range.logical_sector + i, recalc_buffer + (i << SECTOR_SHIFT), t);
|
||||
t += ic->tuple_size;
|
||||
}
|
||||
|
||||
bio = bio_alloc_bioset(ic->dev->bdev, 1, REQ_OP_WRITE, GFP_NOIO, &ic->recalc_bios);
|
||||
bio->bi_iter.bi_sector = ic->start + SB_SECTORS + range.logical_sector;
|
||||
__bio_add_page(bio, virt_to_page(recalc_buffer), range.n_sectors << SECTOR_SHIFT, offset_in_page(recalc_buffer));
|
||||
|
||||
bip = bio_integrity_alloc(bio, GFP_NOIO, 1);
|
||||
if (unlikely(IS_ERR(bip))) {
|
||||
bio_put(bio);
|
||||
DMCRIT("out of memory for bio integrity payload - recalculation disabled");
|
||||
goto err;
|
||||
}
|
||||
ret = bio_integrity_add_page(bio, virt_to_page(recalc_tags), t - recalc_tags, offset_in_page(recalc_tags));
|
||||
if (unlikely(ret != t - recalc_tags)) {
|
||||
bio_put(bio);
|
||||
dm_integrity_io_error(ic, "attaching integrity tags", -ENOMEM);
|
||||
goto err;
|
||||
}
|
||||
|
||||
r = submit_bio_wait(bio);
|
||||
bio_put(bio);
|
||||
if (unlikely(r)) {
|
||||
dm_integrity_io_error(ic, "writing data", r);
|
||||
goto err;
|
||||
}
|
||||
|
||||
cond_resched();
|
||||
spin_lock_irq(&ic->endio_wait.lock);
|
||||
remove_range_unlocked(ic, &range);
|
||||
#ifdef CONFIG_64BIT
|
||||
/* Paired with smp_load_acquire in dm_integrity_map_inline. */
|
||||
smp_store_release(&ic->sb->recalc_sector, cpu_to_le64(range.logical_sector + range.n_sectors));
|
||||
#else
|
||||
ic->sb->recalc_sector = cpu_to_le64(range.logical_sector + range.n_sectors);
|
||||
#endif
|
||||
goto next_chunk;
|
||||
|
||||
err:
|
||||
remove_range(ic, &range);
|
||||
goto free_ret;
|
||||
|
||||
unlock_ret:
|
||||
spin_unlock_irq(&ic->endio_wait.lock);
|
||||
|
||||
recalc_write_super(ic);
|
||||
|
||||
free_ret:
|
||||
kfree(recalc_buffer);
|
||||
kfree(recalc_tags);
|
||||
}
|
||||
|
||||
static void bitmap_block_work(struct work_struct *w)
|
||||
{
|
||||
struct bitmap_block_status *bbs = container_of(w, struct bitmap_block_status, work);
|
||||
@ -4619,6 +4814,17 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned int argc, char **argv
|
||||
r = -ENOMEM;
|
||||
goto bad;
|
||||
}
|
||||
r = bioset_init(&ic->recalc_bios, 1, 0, BIOSET_NEED_BVECS);
|
||||
if (r) {
|
||||
ti->error = "Cannot allocate bio set";
|
||||
goto bad;
|
||||
}
|
||||
r = bioset_integrity_create(&ic->recalc_bios, 1);
|
||||
if (r) {
|
||||
ti->error = "Cannot allocate bio integrity set";
|
||||
r = -ENOMEM;
|
||||
goto bad;
|
||||
}
|
||||
}
|
||||
|
||||
ic->metadata_wq = alloc_workqueue("dm-integrity-metadata",
|
||||
@ -4717,13 +4923,18 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned int argc, char **argv
|
||||
ti->error = "Block size doesn't match the information in superblock";
|
||||
goto bad;
|
||||
}
|
||||
if (!le32_to_cpu(ic->sb->journal_sections) != (ic->mode == 'I')) {
|
||||
r = -EINVAL;
|
||||
if (ic->mode != 'I')
|
||||
if (ic->mode != 'I') {
|
||||
if (!le32_to_cpu(ic->sb->journal_sections)) {
|
||||
r = -EINVAL;
|
||||
ti->error = "Corrupted superblock, journal_sections is 0";
|
||||
else
|
||||
goto bad;
|
||||
}
|
||||
} else {
|
||||
if (le32_to_cpu(ic->sb->journal_sections)) {
|
||||
r = -EINVAL;
|
||||
ti->error = "Corrupted superblock, journal_sections is not 0";
|
||||
goto bad;
|
||||
goto bad;
|
||||
}
|
||||
}
|
||||
/* make sure that ti->max_io_len doesn't overflow */
|
||||
if (!ic->meta_dev) {
|
||||
@ -4830,7 +5041,7 @@ try_smaller_buffer:
|
||||
r = -ENOMEM;
|
||||
goto bad;
|
||||
}
|
||||
INIT_WORK(&ic->recalc_work, integrity_recalc);
|
||||
INIT_WORK(&ic->recalc_work, ic->mode == 'I' ? integrity_recalc_inline : integrity_recalc);
|
||||
} else {
|
||||
if (ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING)) {
|
||||
ti->error = "Recalculate can only be specified with internal_hash";
|
||||
@ -4847,17 +5058,15 @@ try_smaller_buffer:
|
||||
goto bad;
|
||||
}
|
||||
|
||||
if (ic->mode != 'I') {
|
||||
ic->bufio = dm_bufio_client_create(ic->meta_dev ? ic->meta_dev->bdev : ic->dev->bdev,
|
||||
1U << (SECTOR_SHIFT + ic->log2_buffer_sectors), 1, 0, NULL, NULL, 0);
|
||||
if (IS_ERR(ic->bufio)) {
|
||||
r = PTR_ERR(ic->bufio);
|
||||
ti->error = "Cannot initialize dm-bufio";
|
||||
ic->bufio = NULL;
|
||||
goto bad;
|
||||
}
|
||||
dm_bufio_set_sector_offset(ic->bufio, ic->start + ic->initial_sectors);
|
||||
ic->bufio = dm_bufio_client_create(ic->meta_dev ? ic->meta_dev->bdev : ic->dev->bdev,
|
||||
1U << (SECTOR_SHIFT + ic->log2_buffer_sectors), 1, 0, NULL, NULL, 0);
|
||||
if (IS_ERR(ic->bufio)) {
|
||||
r = PTR_ERR(ic->bufio);
|
||||
ti->error = "Cannot initialize dm-bufio";
|
||||
ic->bufio = NULL;
|
||||
goto bad;
|
||||
}
|
||||
dm_bufio_set_sector_offset(ic->bufio, ic->start + ic->initial_sectors);
|
||||
|
||||
if (ic->mode != 'R' && ic->mode != 'I') {
|
||||
r = create_journal(ic, &ti->error);
|
||||
@ -4979,6 +5188,7 @@ static void dm_integrity_dtr(struct dm_target *ti)
|
||||
kvfree(ic->bbs);
|
||||
if (ic->bufio)
|
||||
dm_bufio_client_destroy(ic->bufio);
|
||||
bioset_exit(&ic->recalc_bios);
|
||||
bioset_exit(&ic->recheck_bios);
|
||||
mempool_exit(&ic->recheck_pool);
|
||||
mempool_exit(&ic->journal_io_mempool);
|
||||
@ -5033,7 +5243,7 @@ static void dm_integrity_dtr(struct dm_target *ti)
|
||||
|
||||
static struct target_type integrity_target = {
|
||||
.name = "integrity",
|
||||
.version = {1, 12, 0},
|
||||
.version = {1, 13, 0},
|
||||
.module = THIS_MODULE,
|
||||
.features = DM_TARGET_SINGLETON | DM_TARGET_INTEGRITY,
|
||||
.ctr = dm_integrity_ctr,
|
||||
|
||||
@ -2519,7 +2519,7 @@ static int super_validate(struct raid_set *rs, struct md_rdev *rdev)
|
||||
rdev->saved_raid_disk = rdev->raid_disk;
|
||||
}
|
||||
|
||||
/* Reshape support -> restore repective data offsets */
|
||||
/* Reshape support -> restore respective data offsets */
|
||||
rdev->data_offset = le64_to_cpu(sb->data_offset);
|
||||
rdev->new_data_offset = le64_to_cpu(sb->new_data_offset);
|
||||
|
||||
|
||||
@ -496,8 +496,10 @@ static blk_status_t dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
|
||||
|
||||
map = dm_get_live_table(md, &srcu_idx);
|
||||
if (unlikely(!map)) {
|
||||
DMERR_LIMIT("%s: mapping table unavailable, erroring io",
|
||||
dm_device_name(md));
|
||||
dm_put_live_table(md, srcu_idx);
|
||||
return BLK_STS_RESOURCE;
|
||||
return BLK_STS_IOERR;
|
||||
}
|
||||
ti = dm_table_find_target(map, 0);
|
||||
dm_put_live_table(md, srcu_idx);
|
||||
|
||||
@ -2948,7 +2948,7 @@ static struct pool *pool_create(struct mapped_device *pool_md,
|
||||
pmd = dm_pool_metadata_open(metadata_dev, block_size, format_device);
|
||||
if (IS_ERR(pmd)) {
|
||||
*error = "Error creating metadata object";
|
||||
return (struct pool *)pmd;
|
||||
return ERR_CAST(pmd);
|
||||
}
|
||||
|
||||
pool = kzalloc(sizeof(*pool), GFP_KERNEL);
|
||||
|
||||
@ -501,6 +501,7 @@ static void launch_data_vio(struct data_vio *data_vio, logical_block_number_t lb
|
||||
|
||||
memset(&data_vio->record_name, 0, sizeof(data_vio->record_name));
|
||||
memset(&data_vio->duplicate, 0, sizeof(data_vio->duplicate));
|
||||
vdo_reset_completion(&data_vio->decrement_completion);
|
||||
vdo_reset_completion(completion);
|
||||
completion->error_handler = handle_data_vio_error;
|
||||
set_data_vio_logical_callback(data_vio, attempt_logical_block_lock);
|
||||
@ -1273,12 +1274,14 @@ static void clean_hash_lock(struct vdo_completion *completion)
|
||||
static void finish_cleanup(struct data_vio *data_vio)
|
||||
{
|
||||
struct vdo_completion *completion = &data_vio->vio.completion;
|
||||
u32 discard_size = min_t(u32, data_vio->remaining_discard,
|
||||
VDO_BLOCK_SIZE - data_vio->offset);
|
||||
|
||||
VDO_ASSERT_LOG_ONLY(data_vio->allocation.lock == NULL,
|
||||
"complete data_vio has no allocation lock");
|
||||
VDO_ASSERT_LOG_ONLY(data_vio->hash_lock == NULL,
|
||||
"complete data_vio has no hash lock");
|
||||
if ((data_vio->remaining_discard <= VDO_BLOCK_SIZE) ||
|
||||
if ((data_vio->remaining_discard <= discard_size) ||
|
||||
(completion->result != VDO_SUCCESS)) {
|
||||
struct data_vio_pool *pool = completion->vdo->data_vio_pool;
|
||||
|
||||
@ -1287,12 +1290,12 @@ static void finish_cleanup(struct data_vio *data_vio)
|
||||
return;
|
||||
}
|
||||
|
||||
data_vio->remaining_discard -= min_t(u32, data_vio->remaining_discard,
|
||||
VDO_BLOCK_SIZE - data_vio->offset);
|
||||
data_vio->remaining_discard -= discard_size;
|
||||
data_vio->is_partial = (data_vio->remaining_discard < VDO_BLOCK_SIZE);
|
||||
data_vio->read = data_vio->is_partial;
|
||||
data_vio->offset = 0;
|
||||
completion->requeue = true;
|
||||
data_vio->first_reference_operation_complete = false;
|
||||
launch_data_vio(data_vio, data_vio->logical.lbn + 1);
|
||||
}
|
||||
|
||||
@ -1965,7 +1968,8 @@ static void allocate_block(struct vdo_completion *completion)
|
||||
.state = VDO_MAPPING_STATE_UNCOMPRESSED,
|
||||
};
|
||||
|
||||
if (data_vio->fua) {
|
||||
if (data_vio->fua ||
|
||||
data_vio->remaining_discard > (u32) (VDO_BLOCK_SIZE - data_vio->offset)) {
|
||||
prepare_for_dedupe(data_vio);
|
||||
return;
|
||||
}
|
||||
@ -2042,7 +2046,6 @@ void continue_data_vio_with_block_map_slot(struct vdo_completion *completion)
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* We don't need to write any data, so skip allocation and just update the block map and
|
||||
* reference counts (via the journal).
|
||||
@ -2051,7 +2054,7 @@ void continue_data_vio_with_block_map_slot(struct vdo_completion *completion)
|
||||
if (data_vio->is_zero)
|
||||
data_vio->new_mapped.state = VDO_MAPPING_STATE_UNCOMPRESSED;
|
||||
|
||||
if (data_vio->remaining_discard > VDO_BLOCK_SIZE) {
|
||||
if (data_vio->remaining_discard > (u32) (VDO_BLOCK_SIZE - data_vio->offset)) {
|
||||
/* This is not the final block of a discard so we can't acknowledge it yet. */
|
||||
update_metadata_for_data_vio_write(data_vio, NULL);
|
||||
return;
|
||||
|
||||
@ -729,6 +729,7 @@ static void process_update_result(struct data_vio *agent)
|
||||
!change_context_state(context, DEDUPE_CONTEXT_COMPLETE, DEDUPE_CONTEXT_IDLE))
|
||||
return;
|
||||
|
||||
agent->dedupe_context = NULL;
|
||||
release_context(context);
|
||||
}
|
||||
|
||||
@ -1648,6 +1649,7 @@ static void process_query_result(struct data_vio *agent)
|
||||
|
||||
if (change_context_state(context, DEDUPE_CONTEXT_COMPLETE, DEDUPE_CONTEXT_IDLE)) {
|
||||
agent->is_duplicate = decode_uds_advice(context);
|
||||
agent->dedupe_context = NULL;
|
||||
release_context(context);
|
||||
}
|
||||
}
|
||||
@ -2321,6 +2323,7 @@ static void timeout_index_operations_callback(struct vdo_completion *completion)
|
||||
* send its requestor on its way.
|
||||
*/
|
||||
list_del_init(&context->list_entry);
|
||||
context->requestor->dedupe_context = NULL;
|
||||
continue_data_vio(context->requestor);
|
||||
timed_out++;
|
||||
}
|
||||
|
||||
@ -1105,6 +1105,9 @@ static int vdo_message(struct dm_target *ti, unsigned int argc, char **argv,
|
||||
if ((argc == 1) && (strcasecmp(argv[0], "stats") == 0)) {
|
||||
vdo_write_stats(vdo, result_buffer, maxlen);
|
||||
result = 1;
|
||||
} else if ((argc == 1) && (strcasecmp(argv[0], "config") == 0)) {
|
||||
vdo_write_config(vdo, &result_buffer, &maxlen);
|
||||
result = 1;
|
||||
} else {
|
||||
result = vdo_status_to_errno(process_vdo_message(vdo, argc, argv));
|
||||
}
|
||||
@ -2293,6 +2296,14 @@ static void handle_load_error(struct vdo_completion *completion)
|
||||
return;
|
||||
}
|
||||
|
||||
if ((completion->result == VDO_UNSUPPORTED_VERSION) &&
|
||||
(vdo->admin.phase == LOAD_PHASE_MAKE_DIRTY)) {
|
||||
vdo_log_error("Aborting load due to unsupported version");
|
||||
vdo->admin.phase = LOAD_PHASE_FINISHED;
|
||||
load_callback(completion);
|
||||
return;
|
||||
}
|
||||
|
||||
vdo_log_error_strerror(completion->result,
|
||||
"Entering read-only mode due to load error");
|
||||
vdo->admin.phase = LOAD_PHASE_WAIT_FOR_READ_ONLY;
|
||||
@ -2737,6 +2748,19 @@ static int vdo_preresume_registered(struct dm_target *ti, struct vdo *vdo)
|
||||
vdo_log_info("starting device '%s'", device_name);
|
||||
result = perform_admin_operation(vdo, LOAD_PHASE_START, load_callback,
|
||||
handle_load_error, "load");
|
||||
if (result == VDO_UNSUPPORTED_VERSION) {
|
||||
/*
|
||||
* A component version is not supported. This can happen when the
|
||||
* recovery journal metadata is in an old version format. Abort the
|
||||
* load without saving the state.
|
||||
*/
|
||||
vdo->suspend_type = VDO_ADMIN_STATE_SUSPENDING;
|
||||
perform_admin_operation(vdo, SUSPEND_PHASE_START,
|
||||
suspend_callback, suspend_callback,
|
||||
"suspend");
|
||||
return result;
|
||||
}
|
||||
|
||||
if ((result != VDO_SUCCESS) && (result != VDO_READ_ONLY)) {
|
||||
/*
|
||||
* Something has gone very wrong. Make sure everything has drained and
|
||||
@ -2808,7 +2832,8 @@ static int vdo_preresume(struct dm_target *ti)
|
||||
|
||||
vdo_register_thread_device_id(&instance_thread, &vdo->instance);
|
||||
result = vdo_preresume_registered(ti, vdo);
|
||||
if ((result == VDO_PARAMETER_MISMATCH) || (result == VDO_INVALID_ADMIN_STATE))
|
||||
if ((result == VDO_PARAMETER_MISMATCH) || (result == VDO_INVALID_ADMIN_STATE) ||
|
||||
(result == VDO_UNSUPPORTED_VERSION))
|
||||
result = -EINVAL;
|
||||
vdo_unregister_thread_device_id();
|
||||
return vdo_status_to_errno(result);
|
||||
@ -2832,7 +2857,7 @@ static void vdo_resume(struct dm_target *ti)
|
||||
static struct target_type vdo_target_bio = {
|
||||
.features = DM_TARGET_SINGLETON,
|
||||
.name = "vdo",
|
||||
.version = { 9, 0, 0 },
|
||||
.version = { 9, 1, 0 },
|
||||
.module = THIS_MODULE,
|
||||
.ctr = vdo_ctr,
|
||||
.dtr = vdo_dtr,
|
||||
|
||||
@ -177,7 +177,7 @@ int uds_pack_open_chapter_index_page(struct open_chapter_index *chapter_index,
|
||||
if (list_number < 0)
|
||||
return UDS_OVERFLOW;
|
||||
|
||||
next_list = first_list + list_number--,
|
||||
next_list = first_list + list_number--;
|
||||
result = uds_start_delta_index_search(delta_index, next_list, 0,
|
||||
&entry);
|
||||
if (result != UDS_SUCCESS)
|
||||
|
||||
@ -346,7 +346,6 @@ void __submit_metadata_vio(struct vio *vio, physical_block_number_t physical,
|
||||
|
||||
|
||||
VDO_ASSERT_LOG_ONLY(!code->quiescent, "I/O not allowed in state %s", code->name);
|
||||
VDO_ASSERT_LOG_ONLY(vio->bio->bi_next == NULL, "metadata bio has no next bio");
|
||||
|
||||
vdo_reset_completion(completion);
|
||||
completion->error_handler = error_handler;
|
||||
|
||||
@ -4,6 +4,7 @@
|
||||
*/
|
||||
|
||||
#include "dedupe.h"
|
||||
#include "indexer.h"
|
||||
#include "logger.h"
|
||||
#include "memory-alloc.h"
|
||||
#include "message-stats.h"
|
||||
@ -430,3 +431,50 @@ int vdo_write_stats(struct vdo *vdo, char *buf, unsigned int maxlen)
|
||||
vdo_free(stats);
|
||||
return VDO_SUCCESS;
|
||||
}
|
||||
|
||||
static void write_index_memory(u32 mem, char **buf, unsigned int *maxlen)
|
||||
{
|
||||
char *prefix = "memorySize : ";
|
||||
|
||||
/* Convert index memory to fractional value */
|
||||
if (mem == (u32)UDS_MEMORY_CONFIG_256MB)
|
||||
write_string(prefix, "0.25, ", NULL, buf, maxlen);
|
||||
else if (mem == (u32)UDS_MEMORY_CONFIG_512MB)
|
||||
write_string(prefix, "0.50, ", NULL, buf, maxlen);
|
||||
else if (mem == (u32)UDS_MEMORY_CONFIG_768MB)
|
||||
write_string(prefix, "0.75, ", NULL, buf, maxlen);
|
||||
else
|
||||
write_u32(prefix, mem, ", ", buf, maxlen);
|
||||
}
|
||||
|
||||
static void write_index_config(struct index_config *config, char **buf,
|
||||
unsigned int *maxlen)
|
||||
{
|
||||
write_string("index : ", "{ ", NULL, buf, maxlen);
|
||||
/* index mem size */
|
||||
write_index_memory(config->mem, buf, maxlen);
|
||||
/* whether the index is sparse or not */
|
||||
write_bool("isSparse : ", config->sparse, ", ", buf, maxlen);
|
||||
write_string(NULL, "}", ", ", buf, maxlen);
|
||||
}
|
||||
|
||||
int vdo_write_config(struct vdo *vdo, char **buf, unsigned int *maxlen)
|
||||
{
|
||||
struct vdo_config *config = &vdo->states.vdo.config;
|
||||
|
||||
write_string(NULL, "{ ", NULL, buf, maxlen);
|
||||
/* version */
|
||||
write_u32("version : ", 1, ", ", buf, maxlen);
|
||||
/* physical size */
|
||||
write_block_count_t("physicalSize : ", config->physical_blocks * VDO_BLOCK_SIZE, ", ",
|
||||
buf, maxlen);
|
||||
/* logical size */
|
||||
write_block_count_t("logicalSize : ", config->logical_blocks * VDO_BLOCK_SIZE, ", ",
|
||||
buf, maxlen);
|
||||
/* slab size */
|
||||
write_block_count_t("slabSize : ", config->slab_size, ", ", buf, maxlen);
|
||||
/* index config */
|
||||
write_index_config(&vdo->geometry.index_config, buf, maxlen);
|
||||
write_string(NULL, "}", NULL, buf, maxlen);
|
||||
return VDO_SUCCESS;
|
||||
}
|
||||
|
||||
@ -8,6 +8,7 @@
|
||||
|
||||
#include "types.h"
|
||||
|
||||
int vdo_write_config(struct vdo *vdo, char **buf, unsigned int *maxlen);
|
||||
int vdo_write_stats(struct vdo *vdo, char *buf, unsigned int maxlen);
|
||||
|
||||
#endif /* VDO_MESSAGE_STATS_H */
|
||||
|
||||
@ -1202,17 +1202,14 @@ static bool __must_check is_valid_recovery_journal_block(const struct recovery_j
|
||||
* @journal: The journal to use.
|
||||
* @header: The unpacked block header to check.
|
||||
* @sequence: The expected sequence number.
|
||||
* @type: The expected metadata type.
|
||||
*
|
||||
* Return: True if the block matches.
|
||||
*/
|
||||
static bool __must_check is_exact_recovery_journal_block(const struct recovery_journal *journal,
|
||||
const struct recovery_block_header *header,
|
||||
sequence_number_t sequence,
|
||||
enum vdo_metadata_type type)
|
||||
sequence_number_t sequence)
|
||||
{
|
||||
return ((header->metadata_type == type) &&
|
||||
(header->sequence_number == sequence) &&
|
||||
return ((header->sequence_number == sequence) &&
|
||||
(is_valid_recovery_journal_block(journal, header, true)));
|
||||
}
|
||||
|
||||
@ -1371,7 +1368,8 @@ static void extract_entries_from_block(struct repair_completion *repair,
|
||||
get_recovery_journal_block_header(journal, repair->journal_data,
|
||||
sequence);
|
||||
|
||||
if (!is_exact_recovery_journal_block(journal, &header, sequence, format)) {
|
||||
if (!is_exact_recovery_journal_block(journal, &header, sequence) ||
|
||||
(header.metadata_type != format)) {
|
||||
/* This block is invalid, so skip it. */
|
||||
return;
|
||||
}
|
||||
@ -1557,10 +1555,13 @@ static int parse_journal_for_recovery(struct repair_completion *repair)
|
||||
sequence_number_t i, head;
|
||||
bool found_entries = false;
|
||||
struct recovery_journal *journal = repair->completion.vdo->recovery_journal;
|
||||
struct recovery_block_header header;
|
||||
enum vdo_metadata_type expected_format;
|
||||
|
||||
head = min(repair->block_map_head, repair->slab_journal_head);
|
||||
header = get_recovery_journal_block_header(journal, repair->journal_data, head);
|
||||
expected_format = header.metadata_type;
|
||||
for (i = head; i <= repair->highest_tail; i++) {
|
||||
struct recovery_block_header header;
|
||||
journal_entry_count_t block_entries;
|
||||
u8 j;
|
||||
|
||||
@ -1572,19 +1573,15 @@ static int parse_journal_for_recovery(struct repair_completion *repair)
|
||||
};
|
||||
|
||||
header = get_recovery_journal_block_header(journal, repair->journal_data, i);
|
||||
if (header.metadata_type == VDO_METADATA_RECOVERY_JOURNAL) {
|
||||
/* This is an old format block, so we need to upgrade */
|
||||
vdo_log_error_strerror(VDO_UNSUPPORTED_VERSION,
|
||||
"Recovery journal is in the old format, a read-only rebuild is required.");
|
||||
vdo_enter_read_only_mode(repair->completion.vdo,
|
||||
VDO_UNSUPPORTED_VERSION);
|
||||
return VDO_UNSUPPORTED_VERSION;
|
||||
}
|
||||
|
||||
if (!is_exact_recovery_journal_block(journal, &header, i,
|
||||
VDO_METADATA_RECOVERY_JOURNAL_2)) {
|
||||
if (!is_exact_recovery_journal_block(journal, &header, i)) {
|
||||
/* A bad block header was found so this must be the end of the journal. */
|
||||
break;
|
||||
} else if (header.metadata_type != expected_format) {
|
||||
/* There is a mix of old and new format blocks, so we need to rebuild. */
|
||||
vdo_log_error_strerror(VDO_CORRUPT_JOURNAL,
|
||||
"Recovery journal is in an invalid format, a read-only rebuild is required.");
|
||||
vdo_enter_read_only_mode(repair->completion.vdo, VDO_CORRUPT_JOURNAL);
|
||||
return VDO_CORRUPT_JOURNAL;
|
||||
}
|
||||
|
||||
block_entries = header.entry_count;
|
||||
@ -1620,8 +1617,14 @@ static int parse_journal_for_recovery(struct repair_completion *repair)
|
||||
break;
|
||||
}
|
||||
|
||||
if (!found_entries)
|
||||
if (!found_entries) {
|
||||
return validate_heads(repair);
|
||||
} else if (expected_format == VDO_METADATA_RECOVERY_JOURNAL) {
|
||||
/* All journal blocks have the old format, so we need to upgrade. */
|
||||
vdo_log_error_strerror(VDO_UNSUPPORTED_VERSION,
|
||||
"Recovery journal is in the old format. Downgrade and complete recovery, then upgrade with a clean volume");
|
||||
return VDO_UNSUPPORTED_VERSION;
|
||||
}
|
||||
|
||||
/* Set the tail to the last valid tail block, if there is one. */
|
||||
if (repair->tail_recovery_point.sector_count == 0)
|
||||
|
||||
@ -28,7 +28,7 @@ const struct error_info vdo_status_list[] = {
|
||||
{ "VDO_LOCK_ERROR", "A lock is held incorrectly" },
|
||||
{ "VDO_READ_ONLY", "The device is in read-only mode" },
|
||||
{ "VDO_SHUTTING_DOWN", "The device is shutting down" },
|
||||
{ "VDO_CORRUPT_JOURNAL", "Recovery journal entries corrupted" },
|
||||
{ "VDO_CORRUPT_JOURNAL", "Recovery journal corrupted" },
|
||||
{ "VDO_TOO_MANY_SLABS", "Exceeds maximum number of slabs supported" },
|
||||
{ "VDO_INVALID_FRAGMENT", "Compressed block fragment is invalid" },
|
||||
{ "VDO_RETRY_AFTER_REBUILD", "Retry operation after rebuilding finishes" },
|
||||
|
||||
@ -52,7 +52,7 @@ enum vdo_status_codes {
|
||||
VDO_READ_ONLY,
|
||||
/* the VDO is shutting down */
|
||||
VDO_SHUTTING_DOWN,
|
||||
/* the recovery journal has corrupt entries */
|
||||
/* the recovery journal has corrupt entries or corrupt metadata */
|
||||
VDO_CORRUPT_JOURNAL,
|
||||
/* exceeds maximum number of slabs supported */
|
||||
VDO_TOO_MANY_SLABS,
|
||||
|
||||
@ -273,8 +273,10 @@ out:
|
||||
if (v->mode == DM_VERITY_MODE_LOGGING)
|
||||
return 0;
|
||||
|
||||
if (v->mode == DM_VERITY_MODE_RESTART)
|
||||
kernel_restart("dm-verity device corrupted");
|
||||
if (v->mode == DM_VERITY_MODE_RESTART) {
|
||||
pr_emerg("dm-verity device corrupted\n");
|
||||
emergency_restart();
|
||||
}
|
||||
|
||||
if (v->mode == DM_VERITY_MODE_PANIC)
|
||||
panic("dm-verity device corrupted");
|
||||
@ -597,6 +599,23 @@ static void verity_finish_io(struct dm_verity_io *io, blk_status_t status)
|
||||
if (!static_branch_unlikely(&use_bh_wq_enabled) || !io->in_bh)
|
||||
verity_fec_finish_io(io);
|
||||
|
||||
if (unlikely(status != BLK_STS_OK) &&
|
||||
unlikely(!(bio->bi_opf & REQ_RAHEAD)) &&
|
||||
!verity_is_system_shutting_down()) {
|
||||
if (v->mode == DM_VERITY_MODE_RESTART ||
|
||||
v->mode == DM_VERITY_MODE_PANIC)
|
||||
DMERR_LIMIT("%s has error: %s", v->data_dev->name,
|
||||
blk_status_to_str(status));
|
||||
|
||||
if (v->mode == DM_VERITY_MODE_RESTART) {
|
||||
pr_emerg("dm-verity device corrupted\n");
|
||||
emergency_restart();
|
||||
}
|
||||
|
||||
if (v->mode == DM_VERITY_MODE_PANIC)
|
||||
panic("dm-verity device corrupted");
|
||||
}
|
||||
|
||||
bio_endio(bio);
|
||||
}
|
||||
|
||||
|
||||
@ -127,7 +127,7 @@ int verity_verify_root_hash(const void *root_hash, size_t root_hash_len,
|
||||
#endif
|
||||
VERIFYING_UNSPECIFIED_SIGNATURE, NULL, NULL);
|
||||
#ifdef CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG_PLATFORM_KEYRING
|
||||
if (ret == -ENOKEY)
|
||||
if (ret == -ENOKEY || ret == -EKEYREJECTED)
|
||||
ret = verify_pkcs7_signature(root_hash, root_hash_len, sig_data,
|
||||
sig_len,
|
||||
VERIFY_USE_PLATFORM_KEYRING,
|
||||
|
||||
@ -2030,10 +2030,15 @@ static void dm_submit_bio(struct bio *bio)
|
||||
struct dm_table *map;
|
||||
|
||||
map = dm_get_live_table(md, &srcu_idx);
|
||||
if (unlikely(!map)) {
|
||||
DMERR_LIMIT("%s: mapping table unavailable, erroring io",
|
||||
dm_device_name(md));
|
||||
bio_io_error(bio);
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* If suspended, or map not yet available, queue this IO for later */
|
||||
if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags)) ||
|
||||
unlikely(!map)) {
|
||||
/* If suspended, queue this IO for later */
|
||||
if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags))) {
|
||||
if (bio->bi_opf & REQ_NOWAIT)
|
||||
bio_wouldblock_error(bio);
|
||||
else if (bio->bi_opf & REQ_RAHEAD)
|
||||
|
||||
@ -109,7 +109,6 @@ void dm_zone_endio(struct dm_io *io, struct bio *clone);
|
||||
int dm_blk_report_zones(struct gendisk *disk, sector_t sector,
|
||||
unsigned int nr_zones, report_zones_cb cb, void *data);
|
||||
bool dm_is_zone_write(struct mapped_device *md, struct bio *bio);
|
||||
int dm_zone_map_bio(struct dm_target_io *io);
|
||||
int dm_zone_get_reset_bitmap(struct mapped_device *md, struct dm_table *t,
|
||||
sector_t sector, unsigned int nr_zones,
|
||||
unsigned long *need_reset);
|
||||
@ -119,10 +118,6 @@ static inline bool dm_is_zone_write(struct mapped_device *md, struct bio *bio)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
static inline int dm_zone_map_bio(struct dm_target_io *tio)
|
||||
{
|
||||
return DM_MAPIO_KILL;
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
|
||||
@ -524,7 +524,6 @@ int dm_post_suspending(struct dm_target *ti);
|
||||
int dm_noflush_suspending(struct dm_target *ti);
|
||||
void dm_accept_partial_bio(struct bio *bio, unsigned int n_sectors);
|
||||
void dm_submit_bio_remap(struct bio *clone, struct bio *tgt_clone);
|
||||
union map_info *dm_get_rq_mapinfo(struct request *rq);
|
||||
|
||||
#ifdef CONFIG_BLK_DEV_ZONED
|
||||
struct dm_report_zones_args {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user