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dm zoned: move fields from struct dmz_dev to dmz_metadata 

Move fields from the device structure into the metadata structure
and provide accessor functions.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Hannes Reinecke 2020-05-11 10:24:21 +02:00 committed by Mike Snitzer
parent bf28a3ba09
commit 3682056013
4 changed files with 95 additions and 63 deletions
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88
drivers/md/dm-zoned-metadata.c
View File

@ -138,9 +138,16 @@ struct dmz_metadata {
unsigned int zone_nr_bitmap_blocks;
unsigned int zone_bits_per_mblk;
sector_t zone_nr_blocks;
sector_t zone_nr_blocks_shift;
sector_t zone_nr_sectors;
sector_t zone_nr_sectors_shift;
unsigned int nr_bitmap_blocks;
unsigned int nr_map_blocks;
unsigned int nr_zones;
unsigned int nr_useable_zones;
unsigned int nr_meta_blocks;
unsigned int nr_meta_zones;
@ -190,12 +197,12 @@ struct dmz_metadata {
*/
sector_t dmz_start_sect(struct dmz_metadata *zmd, struct dm_zone *zone)
{
return (sector_t)zone->id << zmd->dev->zone_nr_sectors_shift;
return (sector_t)zone->id << zmd->zone_nr_sectors_shift;
}
sector_t dmz_start_block(struct dmz_metadata *zmd, struct dm_zone *zone)
{
return (sector_t)zone->id << zmd->dev->zone_nr_blocks_shift;
return (sector_t)zone->id << zmd->zone_nr_blocks_shift;
}
struct dmz_dev *dmz_zone_to_dev(struct dmz_metadata *zmd, struct dm_zone *zone)
@ -203,9 +210,29 @@ struct dmz_dev *dmz_zone_to_dev(struct dmz_metadata *zmd, struct dm_zone *zone)
return &zmd->dev[0];
}
unsigned int dmz_zone_nr_blocks(struct dmz_metadata *zmd)
{
return zmd->zone_nr_blocks;
}
unsigned int dmz_zone_nr_blocks_shift(struct dmz_metadata *zmd)
{
return zmd->zone_nr_blocks_shift;
}
unsigned int dmz_zone_nr_sectors(struct dmz_metadata *zmd)
{
return zmd->zone_nr_sectors;
}
unsigned int dmz_zone_nr_sectors_shift(struct dmz_metadata *zmd)
{
return zmd->zone_nr_sectors_shift;
}
unsigned int dmz_nr_zones(struct dmz_metadata *zmd)
{
return zmd->dev->nr_zones;
return zmd->nr_zones;
}
unsigned int dmz_nr_chunks(struct dmz_metadata *zmd)
@ -882,8 +909,8 @@ static int dmz_check_sb(struct dmz_metadata *zmd, unsigned int set)
return -ENXIO;
}
nr_meta_zones = (le32_to_cpu(sb->nr_meta_blocks) + dev->zone_nr_blocks - 1)
>> dev->zone_nr_blocks_shift;
nr_meta_zones = (le32_to_cpu(sb->nr_meta_blocks) + zmd->zone_nr_blocks - 1)
>> zmd->zone_nr_blocks_shift;
if (!nr_meta_zones ||
nr_meta_zones >= zmd->nr_rnd_zones) {
dmz_dev_err(dev, "Invalid number of metadata blocks");
@ -932,7 +959,7 @@ static int dmz_read_sb(struct dmz_metadata *zmd, unsigned int set)
*/
static int dmz_lookup_secondary_sb(struct dmz_metadata *zmd)
{
unsigned int zone_nr_blocks = zmd->dev->zone_nr_blocks;
unsigned int zone_nr_blocks = zmd->zone_nr_blocks;
struct dmz_mblock *mblk;
int i;
@ -1143,7 +1170,7 @@ static int dmz_init_zone(struct blk_zone *blkz, unsigned int idx, void *data)
struct dmz_dev *dev = zmd->dev;
/* Ignore the eventual last runt (smaller) zone */
if (blkz->len != dev->zone_nr_sectors) {
if (blkz->len != zmd->zone_nr_sectors) {
if (blkz->start + blkz->len == dev->capacity)
return 0;
return -ENXIO;
@ -1208,19 +1235,24 @@ static int dmz_init_zones(struct dmz_metadata *zmd)
int ret;
/* Init */
zmd->zone_bitmap_size = dev->zone_nr_blocks >> 3;
zmd->zone_nr_sectors = dev->zone_nr_sectors;
zmd->zone_nr_sectors_shift = ilog2(zmd->zone_nr_sectors);
zmd->zone_nr_blocks = dmz_sect2blk(zmd->zone_nr_sectors);
zmd->zone_nr_blocks_shift = ilog2(zmd->zone_nr_blocks);
zmd->zone_bitmap_size = zmd->zone_nr_blocks >> 3;
zmd->zone_nr_bitmap_blocks =
max_t(sector_t, 1, zmd->zone_bitmap_size >> DMZ_BLOCK_SHIFT);
zmd->zone_bits_per_mblk = min_t(sector_t, dev->zone_nr_blocks,
zmd->zone_bits_per_mblk = min_t(sector_t, zmd->zone_nr_blocks,
DMZ_BLOCK_SIZE_BITS);
/* Allocate zone array */
zmd->zones = kcalloc(dev->nr_zones, sizeof(struct dm_zone), GFP_KERNEL);
zmd->nr_zones = dev->nr_zones;
zmd->zones = kcalloc(zmd->nr_zones, sizeof(struct dm_zone), GFP_KERNEL);
if (!zmd->zones)
return -ENOMEM;
dmz_dev_info(dev, "Using %zu B for zone information",
sizeof(struct dm_zone) * dev->nr_zones);
sizeof(struct dm_zone) * zmd->nr_zones);
/*
* Get zone information and initialize zone descriptors. At the same
@ -1339,7 +1371,7 @@ static int dmz_reset_zone(struct dmz_metadata *zmd, struct dm_zone *zone)
ret = blkdev_zone_mgmt(dev->bdev, REQ_OP_ZONE_RESET,
dmz_start_sect(zmd, zone),
dev->zone_nr_sectors, GFP_NOIO);
zmd->zone_nr_sectors, GFP_NOIO);
if (ret) {
dmz_dev_err(dev, "Reset zone %u failed %d",
zone->id, ret);
@ -1393,7 +1425,7 @@ static int dmz_load_mapping(struct dmz_metadata *zmd)
if (dzone_id == DMZ_MAP_UNMAPPED)
goto next;
if (dzone_id >= dev->nr_zones) {
if (dzone_id >= zmd->nr_zones) {
dmz_dev_err(dev, "Chunk %u mapping: invalid data zone ID %u",
chunk, dzone_id);
return -EIO;
@ -1414,7 +1446,7 @@ static int dmz_load_mapping(struct dmz_metadata *zmd)
if (bzone_id == DMZ_MAP_UNMAPPED)
goto next;
if (bzone_id >= dev->nr_zones) {
if (bzone_id >= zmd->nr_zones) {
dmz_dev_err(dev, "Chunk %u mapping: invalid buffer zone ID %u",
chunk, bzone_id);
return -EIO;
@ -1446,7 +1478,7 @@ next:
* fully initialized. All remaining zones are unmapped data
* zones. Finish initializing those here.
*/
for (i = 0; i < dev->nr_zones; i++) {
for (i = 0; i < zmd->nr_zones; i++) {
dzone = dmz_get(zmd, i);
if (dmz_is_meta(dzone))
continue;
@ -1990,7 +2022,7 @@ int dmz_copy_valid_blocks(struct dmz_metadata *zmd, struct dm_zone *from_zone,
sector_t chunk_block = 0;
/* Get the zones bitmap blocks */
while (chunk_block < zmd->dev->zone_nr_blocks) {
while (chunk_block < zmd->zone_nr_blocks) {
from_mblk = dmz_get_bitmap(zmd, from_zone, chunk_block);
if (IS_ERR(from_mblk))
return PTR_ERR(from_mblk);
@ -2025,7 +2057,7 @@ int dmz_merge_valid_blocks(struct dmz_metadata *zmd, struct dm_zone *from_zone,
int ret;
/* Get the zones bitmap blocks */
while (chunk_block < zmd->dev->zone_nr_blocks) {
while (chunk_block < zmd->zone_nr_blocks) {
/* Get a valid region from the source zone */
ret = dmz_first_valid_block(zmd, from_zone, &chunk_block);
if (ret <= 0)
@ -2049,7 +2081,7 @@ int dmz_validate_blocks(struct dmz_metadata *zmd, struct dm_zone *zone,
sector_t chunk_block, unsigned int nr_blocks)
{
unsigned int count, bit, nr_bits;
unsigned int zone_nr_blocks = zmd->dev->zone_nr_blocks;
unsigned int zone_nr_blocks = zmd->zone_nr_blocks;
struct dmz_mblock *mblk;
unsigned int n = 0;
@ -2136,7 +2168,7 @@ int dmz_invalidate_blocks(struct dmz_metadata *zmd, struct dm_zone *zone,
dmz_dev_debug(zmd->dev, "=> INVALIDATE zone %u, block %llu, %u blocks",
zone->id, (u64)chunk_block, nr_blocks);
WARN_ON(chunk_block + nr_blocks > zmd->dev->zone_nr_blocks);
WARN_ON(chunk_block + nr_blocks > zmd->zone_nr_blocks);
while (nr_blocks) {
/* Get bitmap block */
@ -2180,7 +2212,7 @@ static int dmz_test_block(struct dmz_metadata *zmd, struct dm_zone *zone,
struct dmz_mblock *mblk;
int ret;
WARN_ON(chunk_block >= zmd->dev->zone_nr_blocks);
WARN_ON(chunk_block >= zmd->zone_nr_blocks);
/* Get bitmap block */
mblk = dmz_get_bitmap(zmd, zone, chunk_block);
@ -2210,7 +2242,7 @@ static int dmz_to_next_set_block(struct dmz_metadata *zmd, struct dm_zone *zone,
unsigned long *bitmap;
int n = 0;
WARN_ON(chunk_block + nr_blocks > zmd->dev->zone_nr_blocks);
WARN_ON(chunk_block + nr_blocks > zmd->zone_nr_blocks);
while (nr_blocks) {
/* Get bitmap block */
@ -2254,7 +2286,7 @@ int dmz_block_valid(struct dmz_metadata *zmd, struct dm_zone *zone,
/* The block is valid: get the number of valid blocks from block */
return dmz_to_next_set_block(zmd, zone, chunk_block,
zmd->dev->zone_nr_blocks - chunk_block, 0);
zmd->zone_nr_blocks - chunk_block, 0);
}
/*
@ -2270,7 +2302,7 @@ int dmz_first_valid_block(struct dmz_metadata *zmd, struct dm_zone *zone,
int ret;
ret = dmz_to_next_set_block(zmd, zone, start_block,
zmd->dev->zone_nr_blocks - start_block, 1);
zmd->zone_nr_blocks - start_block, 1);
if (ret < 0)
return ret;
@ -2278,7 +2310,7 @@ int dmz_first_valid_block(struct dmz_metadata *zmd, struct dm_zone *zone,
*chunk_block = start_block;
return dmz_to_next_set_block(zmd, zone, start_block,
zmd->dev->zone_nr_blocks - start_block, 0);
zmd->zone_nr_blocks - start_block, 0);
}
/*
@ -2317,7 +2349,7 @@ static void dmz_get_zone_weight(struct dmz_metadata *zmd, struct dm_zone *zone)
struct dmz_mblock *mblk;
sector_t chunk_block = 0;
unsigned int bit, nr_bits;
unsigned int nr_blocks = zmd->dev->zone_nr_blocks;
unsigned int nr_blocks = zmd->zone_nr_blocks;
void *bitmap;
int n = 0;
@ -2488,7 +2520,7 @@ int dmz_ctr_metadata(struct dmz_dev *dev, struct dmz_metadata **metadata)
dmz_dev_info(dev, " %llu 512-byte logical sectors",
(u64)dev->capacity);
dmz_dev_info(dev, " %u zones of %llu 512-byte logical sectors",
dev->nr_zones, (u64)dev->zone_nr_sectors);
zmd->nr_zones, (u64)zmd->zone_nr_sectors);
dmz_dev_info(dev, " %u metadata zones",
zmd->nr_meta_zones * 2);
dmz_dev_info(dev, " %u data zones for %u chunks",
@ -2541,7 +2573,7 @@ int dmz_resume_metadata(struct dmz_metadata *zmd)
int ret;
/* Check zones */
for (i = 0; i < dev->nr_zones; i++) {
for (i = 0; i < zmd->nr_zones; i++) {
zone = dmz_get(zmd, i);
if (!zone) {
dmz_dev_err(dev, "Unable to get zone %u", i);
@ -2569,7 +2601,7 @@ int dmz_resume_metadata(struct dmz_metadata *zmd)
i, (u64)zone->wp_block, (u64)wp_block);
zone->wp_block = wp_block;
dmz_invalidate_blocks(zmd, zone, zone->wp_block,
dev->zone_nr_blocks - zone->wp_block);
zmd->zone_nr_blocks - zone->wp_block);
}
}

8
drivers/md/dm-zoned-reclaim.c
View File

@ -128,7 +128,7 @@ static int dmz_reclaim_copy(struct dmz_reclaim *zrc,
if (dmz_is_seq(src_zone))
end_block = src_zone->wp_block;
else
end_block = dev->zone_nr_blocks;
end_block = dmz_zone_nr_blocks(zmd);
src_zone_block = dmz_start_block(zmd, src_zone);
dst_zone_block = dmz_start_block(zmd, dst_zone);
@ -210,7 +210,7 @@ static int dmz_reclaim_buf(struct dmz_reclaim *zrc, struct dm_zone *dzone)
ret = dmz_merge_valid_blocks(zmd, bzone, dzone, chunk_block);
if (ret == 0) {
/* Free the buffer zone */
dmz_invalidate_blocks(zmd, bzone, 0, zrc->dev->zone_nr_blocks);
dmz_invalidate_blocks(zmd, bzone, 0, dmz_zone_nr_blocks(zmd));
dmz_lock_map(zmd);
dmz_unmap_zone(zmd, bzone);
dmz_unlock_zone_reclaim(dzone);
@ -252,7 +252,7 @@ static int dmz_reclaim_seq_data(struct dmz_reclaim *zrc, struct dm_zone *dzone)
* Free the data zone and remap the chunk to
* the buffer zone.
*/
dmz_invalidate_blocks(zmd, dzone, 0, zrc->dev->zone_nr_blocks);
dmz_invalidate_blocks(zmd, dzone, 0, dmz_zone_nr_blocks(zmd));
dmz_lock_map(zmd);
dmz_unmap_zone(zmd, bzone);
dmz_unmap_zone(zmd, dzone);
@ -305,7 +305,7 @@ static int dmz_reclaim_rnd_data(struct dmz_reclaim *zrc, struct dm_zone *dzone)
dmz_unlock_map(zmd);
} else {
/* Free the data zone and remap the chunk */
dmz_invalidate_blocks(zmd, dzone, 0, zrc->dev->zone_nr_blocks);
dmz_invalidate_blocks(zmd, dzone, 0, dmz_zone_nr_blocks(zmd));
dmz_lock_map(zmd);
dmz_unmap_zone(zmd, dzone);
dmz_unlock_zone_reclaim(dzone);

48
drivers/md/dm-zoned-target.c
View File

@ -165,7 +165,8 @@ static void dmz_handle_read_zero(struct dmz_target *dmz, struct bio *bio,
static int dmz_handle_read(struct dmz_target *dmz, struct dm_zone *zone,
struct bio *bio)
{
sector_t chunk_block = dmz_chunk_block(dmz->dev, dmz_bio_block(bio));
struct dmz_metadata *zmd = dmz->metadata;
sector_t chunk_block = dmz_chunk_block(zmd, dmz_bio_block(bio));
unsigned int nr_blocks = dmz_bio_blocks(bio);
sector_t end_block = chunk_block + nr_blocks;
struct dm_zone *rzone, *bzone;
@ -178,7 +179,7 @@ static int dmz_handle_read(struct dmz_target *dmz, struct dm_zone *zone,
}
dmz_dev_debug(dmz->dev, "READ chunk %llu -> %s zone %u, block %llu, %u blocks",
(unsigned long long)dmz_bio_chunk(dmz->dev, bio),
(unsigned long long)dmz_bio_chunk(zmd, bio),
(dmz_is_rnd(zone) ? "RND" : "SEQ"),
zone->id,
(unsigned long long)chunk_block, nr_blocks);
@ -189,7 +190,7 @@ static int dmz_handle_read(struct dmz_target *dmz, struct dm_zone *zone,
nr_blocks = 0;
if (dmz_is_rnd(zone) || chunk_block < zone->wp_block) {
/* Test block validity in the data zone */
ret = dmz_block_valid(dmz->metadata, zone, chunk_block);
ret = dmz_block_valid(zmd, zone, chunk_block);
if (ret < 0)
return ret;
if (ret > 0) {
@ -204,7 +205,7 @@ static int dmz_handle_read(struct dmz_target *dmz, struct dm_zone *zone,
* Check the buffer zone, if there is one.
*/
if (!nr_blocks && bzone) {
ret = dmz_block_valid(dmz->metadata, bzone, chunk_block);
ret = dmz_block_valid(zmd, bzone, chunk_block);
if (ret < 0)
return ret;
if (ret > 0) {
@ -308,14 +309,15 @@ static int dmz_handle_buffered_write(struct dmz_target *dmz,
static int dmz_handle_write(struct dmz_target *dmz, struct dm_zone *zone,
struct bio *bio)
{
sector_t chunk_block = dmz_chunk_block(dmz->dev, dmz_bio_block(bio));
struct dmz_metadata *zmd = dmz->metadata;
sector_t chunk_block = dmz_chunk_block(zmd, dmz_bio_block(bio));
unsigned int nr_blocks = dmz_bio_blocks(bio);
if (!zone)
return -ENOSPC;
dmz_dev_debug(dmz->dev, "WRITE chunk %llu -> %s zone %u, block %llu, %u blocks",
(unsigned long long)dmz_bio_chunk(dmz->dev, bio),
(unsigned long long)dmz_bio_chunk(zmd, bio),
(dmz_is_rnd(zone) ? "RND" : "SEQ"),
zone->id,
(unsigned long long)chunk_block, nr_blocks);
@ -345,7 +347,7 @@ static int dmz_handle_discard(struct dmz_target *dmz, struct dm_zone *zone,
struct dmz_metadata *zmd = dmz->metadata;
sector_t block = dmz_bio_block(bio);
unsigned int nr_blocks = dmz_bio_blocks(bio);
sector_t chunk_block = dmz_chunk_block(dmz->dev, block);
sector_t chunk_block = dmz_chunk_block(zmd, block);
int ret = 0;
/* For unmapped chunks, there is nothing to do */
@ -356,7 +358,7 @@ static int dmz_handle_discard(struct dmz_target *dmz, struct dm_zone *zone,
return -EROFS;
dmz_dev_debug(dmz->dev, "DISCARD chunk %llu -> zone %u, block %llu, %u blocks",
(unsigned long long)dmz_bio_chunk(dmz->dev, bio),
(unsigned long long)dmz_bio_chunk(zmd, bio),
zone->id,
(unsigned long long)chunk_block, nr_blocks);
@ -402,7 +404,7 @@ static void dmz_handle_bio(struct dmz_target *dmz, struct dm_chunk_work *cw,
* mapping for read and discard. If a mapping is obtained,
+ the zone returned will be set to active state.
*/
zone = dmz_get_chunk_mapping(zmd, dmz_bio_chunk(dmz->dev, bio),
zone = dmz_get_chunk_mapping(zmd, dmz_bio_chunk(zmd, bio),
bio_op(bio));
if (IS_ERR(zone)) {
ret = PTR_ERR(zone);
@ -525,7 +527,7 @@ static void dmz_flush_work(struct work_struct *work)
*/
static int dmz_queue_chunk_work(struct dmz_target *dmz, struct bio *bio)
{
unsigned int chunk = dmz_bio_chunk(dmz->dev, bio);
unsigned int chunk = dmz_bio_chunk(dmz->metadata, bio);
struct dm_chunk_work *cw;
int ret = 0;
@ -618,6 +620,7 @@ bool dmz_check_bdev(struct dmz_dev *dmz_dev)
static int dmz_map(struct dm_target *ti, struct bio *bio)
{
struct dmz_target *dmz = ti->private;
struct dmz_metadata *zmd = dmz->metadata;
struct dmz_dev *dev = dmz->dev;
struct dmz_bioctx *bioctx = dm_per_bio_data(bio, sizeof(struct dmz_bioctx));
sector_t sector = bio->bi_iter.bi_sector;
@ -630,8 +633,8 @@ static int dmz_map(struct dm_target *ti, struct bio *bio)
dmz_dev_debug(dev, "BIO op %d sector %llu + %u => chunk %llu, block %llu, %u blocks",
bio_op(bio), (unsigned long long)sector, nr_sectors,
(unsigned long long)dmz_bio_chunk(dmz->dev, bio),
(unsigned long long)dmz_chunk_block(dmz->dev, dmz_bio_block(bio)),
(unsigned long long)dmz_bio_chunk(zmd, bio),
(unsigned long long)dmz_chunk_block(zmd, dmz_bio_block(bio)),
(unsigned int)dmz_bio_blocks(bio));
bio_set_dev(bio, dev->bdev);
@ -659,16 +662,16 @@ static int dmz_map(struct dm_target *ti, struct bio *bio)
}
/* Split zone BIOs to fit entirely into a zone */
chunk_sector = sector & (dev->zone_nr_sectors - 1);
if (chunk_sector + nr_sectors > dev->zone_nr_sectors)
dm_accept_partial_bio(bio, dev->zone_nr_sectors - chunk_sector);
chunk_sector = sector & (dmz_zone_nr_sectors(zmd) - 1);
if (chunk_sector + nr_sectors > dmz_zone_nr_sectors(zmd))
dm_accept_partial_bio(bio, dmz_zone_nr_sectors(zmd) - chunk_sector);
/* Now ready to handle this BIO */
ret = dmz_queue_chunk_work(dmz, bio);
if (ret) {
dmz_dev_debug(dmz->dev,
"BIO op %d, can't process chunk %llu, err %i\n",
bio_op(bio), (u64)dmz_bio_chunk(dmz->dev, bio),
bio_op(bio), (u64)dmz_bio_chunk(zmd, bio),
ret);
return DM_MAPIO_REQUEUE;
}
@ -722,10 +725,6 @@ static int dmz_get_zoned_device(struct dm_target *ti, char *path)
}
dev->zone_nr_sectors = blk_queue_zone_sectors(q);
dev->zone_nr_sectors_shift = ilog2(dev->zone_nr_sectors);
dev->zone_nr_blocks = dmz_sect2blk(dev->zone_nr_sectors);
dev->zone_nr_blocks_shift = ilog2(dev->zone_nr_blocks);
dev->nr_zones = blkdev_nr_zones(dev->bdev->bd_disk);
@ -790,7 +789,7 @@ static int dmz_ctr(struct dm_target *ti, unsigned int argc, char **argv)
}
/* Set target (no write same support) */
ti->max_io_len = dev->zone_nr_sectors << 9;
ti->max_io_len = dmz_zone_nr_sectors(dmz->metadata) << 9;
ti->num_flush_bios = 1;
ti->num_discard_bios = 1;
ti->num_write_zeroes_bios = 1;
@ -799,7 +798,8 @@ static int dmz_ctr(struct dm_target *ti, unsigned int argc, char **argv)
ti->discards_supported = true;
/* The exposed capacity is the number of chunks that can be mapped */
ti->len = (sector_t)dmz_nr_chunks(dmz->metadata) << dev->zone_nr_sectors_shift;
ti->len = (sector_t)dmz_nr_chunks(dmz->metadata) <<
dmz_zone_nr_sectors_shift(dmz->metadata);
/* Zone BIO */
ret = bioset_init(&dmz->bio_set, DMZ_MIN_BIOS, 0, 0);
@ -895,7 +895,7 @@ static void dmz_dtr(struct dm_target *ti)
static void dmz_io_hints(struct dm_target *ti, struct queue_limits *limits)
{
struct dmz_target *dmz = ti->private;
unsigned int chunk_sectors = dmz->dev->zone_nr_sectors;
unsigned int chunk_sectors = dmz_zone_nr_sectors(dmz->metadata);
limits->logical_block_size = DMZ_BLOCK_SIZE;
limits->physical_block_size = DMZ_BLOCK_SIZE;
@ -960,7 +960,7 @@ static int dmz_iterate_devices(struct dm_target *ti,
{
struct dmz_target *dmz = ti->private;
struct dmz_dev *dev = dmz->dev;
sector_t capacity = dev->capacity & ~(dev->zone_nr_sectors - 1);
sector_t capacity = dev->capacity & ~(dmz_zone_nr_sectors(dmz->metadata) - 1);
return fn(ti, dmz->ddev, 0, capacity, data);
}

14
drivers/md/dm-zoned.h
View File

@ -60,15 +60,11 @@ struct dmz_dev {
unsigned int flags;
sector_t zone_nr_sectors;
unsigned int zone_nr_sectors_shift;
sector_t zone_nr_blocks;
sector_t zone_nr_blocks_shift;
};
#define dmz_bio_chunk(dev, bio) ((bio)->bi_iter.bi_sector >> \
(dev)->zone_nr_sectors_shift)
#define dmz_chunk_block(dev, b) ((b) & ((dev)->zone_nr_blocks - 1))
#define dmz_bio_chunk(zmd, bio) ((bio)->bi_iter.bi_sector >> \
dmz_zone_nr_sectors_shift(zmd))
#define dmz_chunk_block(zmd, b) ((b) & (dmz_zone_nr_blocks(zmd) - 1))
/* Device flags. */
#define DMZ_BDEV_DYING (1 << 0)
@ -197,6 +193,10 @@ unsigned int dmz_nr_rnd_zones(struct dmz_metadata *zmd);
unsigned int dmz_nr_unmap_rnd_zones(struct dmz_metadata *zmd);
unsigned int dmz_nr_seq_zones(struct dmz_metadata *zmd);
unsigned int dmz_nr_unmap_seq_zones(struct dmz_metadata *zmd);
unsigned int dmz_zone_nr_blocks(struct dmz_metadata *zmd);
unsigned int dmz_zone_nr_blocks_shift(struct dmz_metadata *zmd);
unsigned int dmz_zone_nr_sectors(struct dmz_metadata *zmd);
unsigned int dmz_zone_nr_sectors_shift(struct dmz_metadata *zmd);
/*
* Activate a zone (increment its reference count).