diff options
Diffstat (limited to 'fs/btrfs/zoned.h')
| -rw-r--r-- | fs/btrfs/zoned.h | 169 |
1 files changed, 107 insertions, 62 deletions
diff --git a/fs/btrfs/zoned.h b/fs/btrfs/zoned.h index cbf016a7bb5d..5cefdeb08b7b 100644 --- a/fs/btrfs/zoned.h +++ b/fs/btrfs/zoned.h @@ -4,17 +4,28 @@ #define BTRFS_ZONED_H #include <linux/types.h> +#include <linux/atomic.h> #include <linux/blkdev.h> +#include <linux/blkzoned.h> +#include <linux/errno.h> +#include <linux/spinlock.h> +#include <linux/mutex.h> +#include "messages.h" #include "volumes.h" #include "disk-io.h" #include "block-group.h" #include "btrfs_inode.h" -/* - * Block groups with more than this value (percents) of unusable space will be - * scheduled for background reclaim. - */ -#define BTRFS_DEFAULT_RECLAIM_THRESH 75 +struct block_device; +struct extent_buffer; +struct btrfs_bio; +struct btrfs_ordered_extent; +struct btrfs_fs_info; +struct btrfs_space_info; +struct btrfs_eb_write_context; +struct btrfs_fs_devices; + +#define BTRFS_DEFAULT_RECLAIM_THRESH (75) struct btrfs_zoned_device_info { /* @@ -25,6 +36,11 @@ struct btrfs_zoned_device_info { u8 zone_size_shift; u32 nr_zones; unsigned int max_active_zones; + /* + * Reserved active zones for one metadata and one system block group. + * It can vary per-device depending on the allocation status. + */ + int reserved_active_zones; atomic_t active_zones_left; unsigned long *seq_zones; unsigned long *empty_zones; @@ -33,14 +49,16 @@ struct btrfs_zoned_device_info { struct blk_zone sb_zones[2 * BTRFS_SUPER_MIRROR_MAX]; }; +void btrfs_finish_ordered_zoned(struct btrfs_ordered_extent *ordered); + #ifdef CONFIG_BLK_DEV_ZONED -int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos, - struct blk_zone *zone); int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info); int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache); void btrfs_destroy_dev_zone_info(struct btrfs_device *device); +struct btrfs_zoned_device_info *btrfs_clone_dev_zone_info(struct btrfs_device *orig_dev); int btrfs_check_zoned_mode(struct btrfs_fs_info *fs_info); -int btrfs_check_mountopts_zoned(struct btrfs_fs_info *info); +int btrfs_check_mountopts_zoned(const struct btrfs_fs_info *info, + unsigned long long *mount_opt); 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, @@ -54,36 +72,31 @@ int btrfs_reset_device_zone(struct btrfs_device *device, u64 physical, int btrfs_ensure_empty_zones(struct btrfs_device *device, u64 start, u64 size); int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new); void btrfs_calc_zone_unusable(struct btrfs_block_group *cache); -void btrfs_redirty_list_add(struct btrfs_transaction *trans, - struct extent_buffer *eb); -void btrfs_free_redirty_list(struct btrfs_transaction *trans); -bool btrfs_use_zone_append(struct btrfs_inode *inode, u64 start); -void btrfs_record_physical_zoned(struct inode *inode, u64 file_offset, - struct bio *bio); -void btrfs_rewrite_logical_zoned(struct btrfs_ordered_extent *ordered); -bool btrfs_check_meta_write_pointer(struct btrfs_fs_info *fs_info, - struct extent_buffer *eb, - struct btrfs_block_group **cache_ret); -void btrfs_revert_meta_write_pointer(struct btrfs_block_group *cache, - struct extent_buffer *eb); +bool btrfs_use_zone_append(struct btrfs_bio *bbio); +void btrfs_record_physical_zoned(struct btrfs_bio *bbio); +int btrfs_check_meta_write_pointer(struct btrfs_fs_info *fs_info, + struct btrfs_eb_write_context *ctx); int btrfs_zoned_issue_zeroout(struct btrfs_device *device, u64 physical, u64 length); int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev, u64 logical, u64 physical_start, u64 physical_pos); -struct btrfs_device *btrfs_zoned_get_device(struct btrfs_fs_info *fs_info, - u64 logical, u64 length); bool btrfs_zone_activate(struct btrfs_block_group *block_group); int btrfs_zone_finish(struct btrfs_block_group *block_group); bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, u64 flags); -void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info, u64 logical, +int btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info, u64 logical, u64 length); +void btrfs_schedule_zone_finish_bg(struct btrfs_block_group *bg, + struct extent_buffer *eb); void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg); +void btrfs_zoned_reserve_data_reloc_bg(struct btrfs_fs_info *fs_info); void btrfs_free_zone_cache(struct btrfs_fs_info *fs_info); +bool btrfs_zoned_should_reclaim(const struct btrfs_fs_info *fs_info); +void btrfs_zoned_release_data_reloc_bg(struct btrfs_fs_info *fs_info, u64 logical, + u64 length); +int btrfs_zone_finish_one_bg(struct btrfs_fs_info *fs_info); +int btrfs_zoned_activate_one_bg(struct btrfs_space_info *space_info, bool do_finish); +void btrfs_check_active_zone_reservation(struct btrfs_fs_info *fs_info); +int btrfs_reset_unused_block_groups(struct btrfs_space_info *space_info, u64 num_bytes); #else /* CONFIG_BLK_DEV_ZONED */ -static inline int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos, - struct blk_zone *zone) -{ - return 0; -} static inline int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info) { @@ -98,6 +111,16 @@ static inline int btrfs_get_dev_zone_info(struct btrfs_device *device, static inline void btrfs_destroy_dev_zone_info(struct btrfs_device *device) { } +/* + * In case the kernel is compiled without CONFIG_BLK_DEV_ZONED we'll never call + * into btrfs_clone_dev_zone_info() so it's safe to return NULL here. + */ +static inline struct btrfs_zoned_device_info *btrfs_clone_dev_zone_info( + struct btrfs_device *orig_dev) +{ + return NULL; +} + static inline int btrfs_check_zoned_mode(const struct btrfs_fs_info *fs_info) { if (!btrfs_is_zoned(fs_info)) @@ -107,7 +130,8 @@ static inline int btrfs_check_zoned_mode(const struct btrfs_fs_info *fs_info) return -EOPNOTSUPP; } -static inline int btrfs_check_mountopts_zoned(struct btrfs_fs_info *info) +static inline int btrfs_check_mountopts_zoned(const struct btrfs_fs_info *info, + unsigned long long *mount_opt) { return 0; } @@ -164,34 +188,19 @@ static inline int btrfs_load_block_group_zone_info( static inline void btrfs_calc_zone_unusable(struct btrfs_block_group *cache) { } -static inline void btrfs_redirty_list_add(struct btrfs_transaction *trans, - struct extent_buffer *eb) { } -static inline void btrfs_free_redirty_list(struct btrfs_transaction *trans) { } - -static inline bool btrfs_use_zone_append(struct btrfs_inode *inode, u64 start) +static inline bool btrfs_use_zone_append(struct btrfs_bio *bbio) { return false; } -static inline void btrfs_record_physical_zoned(struct inode *inode, - u64 file_offset, struct bio *bio) -{ -} - -static inline void btrfs_rewrite_logical_zoned( - struct btrfs_ordered_extent *ordered) { } - -static inline bool btrfs_check_meta_write_pointer(struct btrfs_fs_info *fs_info, - struct extent_buffer *eb, - struct btrfs_block_group **cache_ret) +static inline void btrfs_record_physical_zoned(struct btrfs_bio *bbio) { - return true; } -static inline void btrfs_revert_meta_write_pointer( - struct btrfs_block_group *cache, - struct extent_buffer *eb) +static inline int btrfs_check_meta_write_pointer(struct btrfs_fs_info *fs_info, + struct btrfs_eb_write_context *ctx) { + return 0; } static inline int btrfs_zoned_issue_zeroout(struct btrfs_device *device, @@ -207,13 +216,6 @@ static inline int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev, return -EOPNOTSUPP; } -static inline struct btrfs_device *btrfs_zoned_get_device( - struct btrfs_fs_info *fs_info, - u64 logical, u64 length) -{ - return ERR_PTR(-EOPNOTSUPP); -} - static inline bool btrfs_zone_activate(struct btrfs_block_group *block_group) { return true; @@ -230,12 +232,49 @@ static inline bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, return true; } -static inline void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info, - u64 logical, u64 length) { } +static inline int btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info, + u64 logical, u64 length) +{ + return 0; +} + +static inline void btrfs_schedule_zone_finish_bg(struct btrfs_block_group *bg, + struct extent_buffer *eb) { } static inline void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg) { } +static inline void btrfs_zoned_reserve_data_reloc_bg(struct btrfs_fs_info *fs_info) { } + static inline void btrfs_free_zone_cache(struct btrfs_fs_info *fs_info) { } + +static inline bool btrfs_zoned_should_reclaim(const struct btrfs_fs_info *fs_info) +{ + return false; +} + +static inline void btrfs_zoned_release_data_reloc_bg(struct btrfs_fs_info *fs_info, + u64 logical, u64 length) { } + +static inline int btrfs_zone_finish_one_bg(struct btrfs_fs_info *fs_info) +{ + return 1; +} + +static inline int btrfs_zoned_activate_one_bg(struct btrfs_space_info *space_info, + bool do_finish) +{ + /* Consider all the block groups are active */ + return 0; +} + +static inline void btrfs_check_active_zone_reservation(struct btrfs_fs_info *fs_info) { } + +static inline int btrfs_reset_unused_block_groups(struct btrfs_space_info *space_info, + u64 num_bytes) +{ + return 0; +} + #endif static inline bool btrfs_dev_is_sequential(struct btrfs_device *device, u64 pos) @@ -299,8 +338,8 @@ static inline bool btrfs_check_device_zone_type(const struct btrfs_fs_info *fs_i (bdev_zone_sectors(bdev) << SECTOR_SHIFT); } - /* Do not allow Host Manged zoned device */ - return bdev_zoned_model(bdev) != BLK_ZONED_HM; + /* Do not allow Host Managed zoned device. */ + return !bdev_is_zoned(bdev); } static inline bool btrfs_check_super_location(struct btrfs_device *device, u64 pos) @@ -359,7 +398,7 @@ static inline void btrfs_zoned_data_reloc_lock(struct btrfs_inode *inode) struct btrfs_root *root = inode->root; if (btrfs_is_data_reloc_root(root) && btrfs_is_zoned(root->fs_info)) - btrfs_inode_lock(&inode->vfs_inode, 0); + mutex_lock(&root->fs_info->zoned_data_reloc_io_lock); } static inline void btrfs_zoned_data_reloc_unlock(struct btrfs_inode *inode) @@ -367,7 +406,13 @@ static inline void btrfs_zoned_data_reloc_unlock(struct btrfs_inode *inode) struct btrfs_root *root = inode->root; if (btrfs_is_data_reloc_root(root) && btrfs_is_zoned(root->fs_info)) - btrfs_inode_unlock(&inode->vfs_inode, 0); + mutex_unlock(&root->fs_info->zoned_data_reloc_io_lock); +} + +static inline bool btrfs_zoned_bg_is_full(const struct btrfs_block_group *bg) +{ + ASSERT(btrfs_is_zoned(bg->fs_info)); + return (bg->alloc_offset == bg->zone_capacity); } #endif |