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| author | Damien Le Moal <damien.lemoal@wdc.com> | 2021-01-28 13:47:32 +0900 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-02-10 07:44:41 -0700 |
| commit | 508aebb805277c541e94ee14daba4191ff02347e (patch) | |
| tree | 5dc37ce33ad8e36046994a9d116d9216a72c17ad /block | |
| parent | 0f1ba5f5d80f84b605e70cf4661cb1a44a3c02a6 (diff) | |
| download | linux-stable-508aebb805277c541e94ee14daba4191ff02347e.tar.gz linux-stable-508aebb805277c541e94ee14daba4191ff02347e.tar.bz2 linux-stable-508aebb805277c541e94ee14daba4191ff02347e.zip | |
block: introduce blk_queue_clear_zone_settings()
Introduce the internal function blk_queue_clear_zone_settings() to
cleanup all limits and resources related to zoned block devices. This
new function is called from blk_queue_set_zoned() when a disk zoned
model is set to BLK_ZONED_NONE. This particular case can happens when a
partition is created on a host-aware scsi disk.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@edc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-settings.c | 2 | ||||
| -rw-r--r-- | block/blk-zoned.c | 17 | ||||
| -rw-r--r-- | block/blk.h | 2 |
3 files changed, 21 insertions, 0 deletions
diff --git a/block/blk-settings.c b/block/blk-settings.c index a1e66165adcf..7dd8be314ac6 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -910,6 +910,8 @@ void blk_queue_set_zoned(struct gendisk *disk, enum blk_zoned_model model) */ blk_queue_zone_write_granularity(q, queue_logical_block_size(q)); + } else { + blk_queue_clear_zone_settings(q); } } EXPORT_SYMBOL_GPL(blk_queue_set_zoned); diff --git a/block/blk-zoned.c b/block/blk-zoned.c index 7a68b6e4300c..833978c02e60 100644 --- a/block/blk-zoned.c +++ b/block/blk-zoned.c @@ -549,3 +549,20 @@ int blk_revalidate_disk_zones(struct gendisk *disk, return ret; } EXPORT_SYMBOL_GPL(blk_revalidate_disk_zones); + +void blk_queue_clear_zone_settings(struct request_queue *q) +{ + blk_mq_freeze_queue(q); + + blk_queue_free_zone_bitmaps(q); + blk_queue_flag_clear(QUEUE_FLAG_ZONE_RESETALL, q); + q->required_elevator_features &= ~ELEVATOR_F_ZBD_SEQ_WRITE; + q->nr_zones = 0; + q->max_open_zones = 0; + q->max_active_zones = 0; + q->limits.chunk_sectors = 0; + q->limits.zone_write_granularity = 0; + q->limits.max_zone_append_sectors = 0; + + blk_mq_unfreeze_queue(q); +} diff --git a/block/blk.h b/block/blk.h index bfc4d526f626..3b53e44b967e 100644 --- a/block/blk.h +++ b/block/blk.h @@ -334,8 +334,10 @@ struct bio *blk_next_bio(struct bio *bio, unsigned int nr_pages, gfp_t gfp); #ifdef CONFIG_BLK_DEV_ZONED void blk_queue_free_zone_bitmaps(struct request_queue *q); +void blk_queue_clear_zone_settings(struct request_queue *q); #else static inline void blk_queue_free_zone_bitmaps(struct request_queue *q) {} +static inline void blk_queue_clear_zone_settings(struct request_queue *q) {} #endif int blk_alloc_devt(struct block_device *part, dev_t *devt); |