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authorHannes Reinecke <hare@suse.de>2020-05-11 11:24:21 +0300
committerMike Snitzer <snitzer@redhat.com>2020-05-15 17:29:37 +0300
commit368205601375bbfb41b07ec8295eab208b6fced5 (patch)
tree3fc231fa1022408167b80c0e0a29d7fe6045a468 /drivers/md/dm-zoned-target.c
parentbf28a3ba098676831bde49e8bc47849727d532a5 (diff)
downloadlinux-368205601375bbfb41b07ec8295eab208b6fced5.tar.xz
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>
Diffstat (limited to 'drivers/md/dm-zoned-target.c')
-rw-r--r--drivers/md/dm-zoned-target.c48
1 files changed, 24 insertions, 24 deletions
diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c
index 859ccc30ba7f..68c5684d7b01 100644
--- a/drivers/md/dm-zoned-target.c
+++ b/drivers/md/dm-zoned-target.c
@@ -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);
}