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| author |   Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> | 2019-08-22 21:45:18 -0700 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2019-08-23 06:58:05 -0600 |
| commit | fceb5d1b19cbe6263f09dbe8e8138edf02eb6e6b (patch) | |
| tree | a9ac7e571d1e33efcce191de63ed75e1dafebf25 /drivers/block/null_blk.h | |
| parent | null_blk: create a helper for mem-backed ops (diff) | |
| download | linux-dev-fceb5d1b19cbe6263f09dbe8e8138edf02eb6e6b.tar.xz linux-dev-fceb5d1b19cbe6263f09dbe8e8138edf02eb6e6b.zip | |
null_blk: create a helper for zoned devices
This patch creates a helper function for handling zoned block device
operations.
This patch also restructured the code for null_blk_zoned.c and uses the
pattern to return blk_status_t and catch the error in the function
null_handle_cmd() into cmd->error variable instead of setting it up in
the deeper layer just like the way it is done for flush, badblocks and
memory backed case in the null_handle_cmd(). We also move
null_handle_zoned() to the null_blk_zoned.c to keep the zoned code
separate.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/null_blk.h')
| -rw-r--r-- | drivers/block/null_blk.h | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/block/null_blk.h b/drivers/block/null_blk.h index a1b9929bd911..4895c02e0c65 100644 --- a/drivers/block/null_blk.h +++ b/drivers/block/null_blk.h @@ -90,9 +90,9 @@ int null_zone_init(struct nullb_device *dev); void null_zone_exit(struct nullb_device *dev); int null_zone_report(struct gendisk *disk, sector_t sector, struct blk_zone *zones, unsigned int *nr_zones); -void null_zone_write(struct nullb_cmd *cmd, sector_t sector, - unsigned int nr_sectors); -void null_zone_reset(struct nullb_cmd *cmd, sector_t sector); +inline blk_status_t null_handle_zoned(struct nullb_cmd *cmd, + enum req_opf op, sector_t sector, + sector_t nr_sectors); #else static inline int null_zone_init(struct nullb_device *dev) { @@ -106,10 +106,11 @@ static inline int null_zone_report(struct gendisk *disk, sector_t sector, { return -EOPNOTSUPP; } -static inline void null_zone_write(struct nullb_cmd *cmd, sector_t sector, - unsigned int nr_sectors) +static inline blk_status_t null_handle_zoned(struct nullb_cmd *cmd, + enum req_opf op, sector_t sector, + sector_t nr_sectors) { + return BLK_STS_NOTSUPP; } -static inline void null_zone_reset(struct nullb_cmd *cmd, sector_t sector) {} #endif /* CONFIG_BLK_DEV_ZONED */ #endif /* __NULL_BLK_H */ |