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| author |   Damien Le Moal <damien.lemoal@wdc.com> | 2021-01-29 23:47:25 +0900 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2021-01-29 07:49:22 -0700 |
| commit | cd92cdb9c8bcfc27a8f28bcbf7c414a0ea79e5ec (patch) | |
| tree | 36bd10ac8a71306ee6a766b454b91c80290b44e8 | |
| parent | Merge tag 'nvme-5.11-2021-01-28' of git://git.infradead.org/nvme into block-5.11 (diff) | |
| download | linux-dev-cd92cdb9c8bcfc27a8f28bcbf7c414a0ea79e5ec.tar.xz linux-dev-cd92cdb9c8bcfc27a8f28bcbf7c414a0ea79e5ec.zip | |
null_blk: cleanup zoned mode initialization
To avoid potential compilation problems, replaced the badly written
MB_TO_SECTS() macro (missing parenthesis around the argument use) with
the inline function mb_to_sects(). And while at it, simplify the
calculation of the total number of zones of the device using the
round_up() macro.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | drivers/block/null_blk/zoned.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/block/null_blk/zoned.c b/drivers/block/null_blk/zoned.c index 148b871f263b..fce0a54df0e5 100644 --- a/drivers/block/null_blk/zoned.c +++ b/drivers/block/null_blk/zoned.c @@ -6,7 +6,10 @@ #define CREATE_TRACE_POINTS #include "trace.h" -#define MB_TO_SECTS(mb) (((sector_t)mb * SZ_1M) >> SECTOR_SHIFT) +static inline sector_t mb_to_sects(unsigned long mb) +{ + return ((sector_t)mb * SZ_1M) >> SECTOR_SHIFT; +} static inline unsigned int null_zone_no(struct nullb_device *dev, sector_t sect) { @@ -77,12 +80,11 @@ int null_init_zoned_dev(struct nullb_device *dev, struct request_queue *q) return -EINVAL; } - zone_capacity_sects = MB_TO_SECTS(dev->zone_capacity); - dev_capacity_sects = MB_TO_SECTS(dev->size); - dev->zone_size_sects = MB_TO_SECTS(dev->zone_size); - dev->nr_zones = dev_capacity_sects >> ilog2(dev->zone_size_sects); - if (dev_capacity_sects & (dev->zone_size_sects - 1)) - dev->nr_zones++; + zone_capacity_sects = mb_to_sects(dev->zone_capacity); + dev_capacity_sects = mb_to_sects(dev->size); + dev->zone_size_sects = mb_to_sects(dev->zone_size); + dev->nr_zones = round_up(dev_capacity_sects, dev->zone_size_sects) + >> ilog2(dev->zone_size_sects); dev->zones = kvmalloc_array(dev->nr_zones, sizeof(struct nullb_zone), GFP_KERNEL | __GFP_ZERO); |