diff options
Diffstat (limited to 'fs/btrfs/zoned.h')
| -rw-r--r-- | fs/btrfs/zoned.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/fs/btrfs/zoned.h b/fs/btrfs/zoned.h index af01070e185b..8abe2f83272b 100644 --- a/fs/btrfs/zoned.h +++ b/fs/btrfs/zoned.h @@ -5,6 +5,8 @@ #include <linux/types.h> #include <linux/blkdev.h> +#include "volumes.h" +#include "disk-io.h" struct btrfs_zoned_device_info { /* @@ -17,6 +19,7 @@ struct btrfs_zoned_device_info { u32 nr_zones; unsigned long *seq_zones; unsigned long *empty_zones; + struct blk_zone sb_zones[2 * BTRFS_SUPER_MIRROR_MAX]; }; #ifdef CONFIG_BLK_DEV_ZONED @@ -26,6 +29,12 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device); void btrfs_destroy_dev_zone_info(struct btrfs_device *device); int btrfs_check_zoned_mode(struct btrfs_fs_info *fs_info); int btrfs_check_mountopts_zoned(struct btrfs_fs_info *info); +int btrfs_sb_log_location_bdev(struct block_device *bdev, int mirror, int rw, + u64 *bytenr_ret); +int btrfs_sb_log_location(struct btrfs_device *device, int mirror, int rw, + u64 *bytenr_ret); +void btrfs_advance_sb_log(struct btrfs_device *device, int mirror); +int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror); #else /* CONFIG_BLK_DEV_ZONED */ static inline int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos, struct blk_zone *zone) @@ -54,6 +63,28 @@ static inline int btrfs_check_mountopts_zoned(struct btrfs_fs_info *info) return 0; } +static inline int btrfs_sb_log_location_bdev(struct block_device *bdev, + int mirror, int rw, u64 *bytenr_ret) +{ + *bytenr_ret = btrfs_sb_offset(mirror); + return 0; +} + +static inline int btrfs_sb_log_location(struct btrfs_device *device, int mirror, + int rw, u64 *bytenr_ret) +{ + *bytenr_ret = btrfs_sb_offset(mirror); + return 0; +} + +static inline void btrfs_advance_sb_log(struct btrfs_device *device, int mirror) +{ } + +static inline int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror) +{ + return 0; +} + #endif static inline bool btrfs_dev_is_sequential(struct btrfs_device *device, u64 pos) @@ -117,4 +148,13 @@ static inline bool btrfs_check_device_zone_type(const struct btrfs_fs_info *fs_i return bdev_zoned_model(bdev) != BLK_ZONED_HM; } +static inline bool btrfs_check_super_location(struct btrfs_device *device, u64 pos) +{ + /* + * On a non-zoned device, any address is OK. On a zoned device, + * non-SEQUENTIAL WRITE REQUIRED zones are capable. + */ + return device->zone_info == NULL || !btrfs_dev_is_sequential(device, pos); +} + #endif |