[linux-block.git] / fs / btrfs / zoned.h

/* SPDX-License-Identifier: GPL-2.0 */

#ifndef BTRFS_ZONED_H
#define BTRFS_ZONED_H

#include <linux/types.h>
#include <linux/blkdev.h>
#include "messages.h"
#include "volumes.h"
#include "disk-io.h"
#include "block-group.h"
#include "btrfs_inode.h"

#define BTRFS_DEFAULT_RECLAIM_THRESH           			(75)

struct btrfs_zoned_device_info {
	/*
	 * Number of zones, zone size and types of zones if bdev is a
	 * zoned block device.
	 */
	u64 zone_size;
	u8  zone_size_shift;
	u32 nr_zones;
	unsigned int max_active_zones;
	atomic_t active_zones_left;
	unsigned long *seq_zones;
	unsigned long *empty_zones;
	unsigned long *active_zones;
	struct blk_zone *zone_cache;
	struct blk_zone sb_zones[2 * BTRFS_SUPER_MIRROR_MAX];
};

#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_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);
int btrfs_advance_sb_log(struct btrfs_device *device, int mirror);
int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror);
u64 btrfs_find_allocatable_zones(struct btrfs_device *device, u64 hole_start,
				 u64 hole_end, u64 num_bytes);
int btrfs_reset_device_zone(struct btrfs_device *device, u64 physical,
			    u64 length, u64 *bytes);
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_bio *bbio);
void btrfs_record_physical_zoned(struct btrfs_bio *bbio);
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);
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);
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,
			     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_free_zone_cache(struct btrfs_fs_info *fs_info);
bool btrfs_zoned_should_reclaim(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_fs_info *fs_info,
				struct btrfs_space_info *space_info, bool do_finish);
#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)
{
	return 0;
}

static inline int btrfs_get_dev_zone_info(struct btrfs_device *device,
					  bool populate_cache)
{
	return 0;
}

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))
		return 0;

	btrfs_err(fs_info, "zoned block devices support is not enabled");
	return -EOPNOTSUPP;
}

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 int btrfs_advance_sb_log(struct btrfs_device *device, int mirror)
{
	return 0;
}

static inline int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror)
{
	return 0;
}

static inline u64 btrfs_find_allocatable_zones(struct btrfs_device *device,
					       u64 hole_start, u64 hole_end,
					       u64 num_bytes)
{
	return hole_start;
}

static inline int btrfs_reset_device_zone(struct btrfs_device *device,
					  u64 physical, u64 length, u64 *bytes)
{
	*bytes = 0;
	return 0;
}

static inline int btrfs_ensure_empty_zones(struct btrfs_device *device,
					   u64 start, u64 size)
{
	return 0;
}

static inline int btrfs_load_block_group_zone_info(
		struct btrfs_block_group *cache, bool new)
{
	return 0;
}

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_bio *bbio)
{
	return false;
}

static inline void btrfs_record_physical_zoned(struct btrfs_bio *bbio)
{
}

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)
{
	return true;
}

static inline void btrfs_revert_meta_write_pointer(
						struct btrfs_block_group *cache,
						struct extent_buffer *eb)
{
}

static inline int btrfs_zoned_issue_zeroout(struct btrfs_device *device,
					    u64 physical, u64 length)
{
	return -EOPNOTSUPP;
}

static inline int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev,
						u64 logical, u64 physical_start,
						u64 physical_pos)
{
	return -EOPNOTSUPP;
}

static inline bool btrfs_zone_activate(struct btrfs_block_group *block_group)
{
	return true;
}

static inline int btrfs_zone_finish(struct btrfs_block_group *block_group)
{
	return 0;
}

static inline bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices,
					   u64 flags)
{
	return true;
}

static inline void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info,
					   u64 logical, u64 length) { }

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_free_zone_cache(struct btrfs_fs_info *fs_info) { }

static inline bool btrfs_zoned_should_reclaim(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_fs_info *fs_info,
					      struct btrfs_space_info *space_info,
					      bool do_finish)
{
	/* Consider all the block groups are active */
	return 0;
}

#endif

static inline bool btrfs_dev_is_sequential(struct btrfs_device *device, u64 pos)
{
	struct btrfs_zoned_device_info *zone_info = device->zone_info;

	if (!zone_info)
		return false;

	return test_bit(pos >> zone_info->zone_size_shift, zone_info->seq_zones);
}

static inline bool btrfs_dev_is_empty_zone(struct btrfs_device *device, u64 pos)
{
	struct btrfs_zoned_device_info *zone_info = device->zone_info;

	if (!zone_info)
		return true;

	return test_bit(pos >> zone_info->zone_size_shift, zone_info->empty_zones);
}

static inline void btrfs_dev_set_empty_zone_bit(struct btrfs_device *device,
						u64 pos, bool set)
{
	struct btrfs_zoned_device_info *zone_info = device->zone_info;
	unsigned int zno;

	if (!zone_info)
		return;

	zno = pos >> zone_info->zone_size_shift;
	if (set)
		set_bit(zno, zone_info->empty_zones);
	else
		clear_bit(zno, zone_info->empty_zones);
}

static inline void btrfs_dev_set_zone_empty(struct btrfs_device *device, u64 pos)
{
	btrfs_dev_set_empty_zone_bit(device, pos, true);
}

static inline void btrfs_dev_clear_zone_empty(struct btrfs_device *device, u64 pos)
{
	btrfs_dev_set_empty_zone_bit(device, pos, false);
}

static inline bool btrfs_check_device_zone_type(const struct btrfs_fs_info *fs_info,
						struct block_device *bdev)
{
	if (btrfs_is_zoned(fs_info)) {
		/*
		 * We can allow a regular device on a zoned filesystem, because
		 * we will emulate the zoned capabilities.
		 */
		if (!bdev_is_zoned(bdev))
			return true;

		return fs_info->zone_size ==
			(bdev_zone_sectors(bdev) << SECTOR_SHIFT);
	}

	/* Do not allow Host Manged zoned device */
	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);
}

static inline bool btrfs_can_zone_reset(struct btrfs_device *device,
					u64 physical, u64 length)
{
	u64 zone_size;

	if (!btrfs_dev_is_sequential(device, physical))
		return false;

	zone_size = device->zone_info->zone_size;
	if (!IS_ALIGNED(physical, zone_size) || !IS_ALIGNED(length, zone_size))
		return false;

	return true;
}

static inline void btrfs_zoned_meta_io_lock(struct btrfs_fs_info *fs_info)
{
	if (!btrfs_is_zoned(fs_info))
		return;
	mutex_lock(&fs_info->zoned_meta_io_lock);
}

static inline void btrfs_zoned_meta_io_unlock(struct btrfs_fs_info *fs_info)
{
	if (!btrfs_is_zoned(fs_info))
		return;
	mutex_unlock(&fs_info->zoned_meta_io_lock);
}

static inline void btrfs_clear_treelog_bg(struct btrfs_block_group *bg)
{
	struct btrfs_fs_info *fs_info = bg->fs_info;

	if (!btrfs_is_zoned(fs_info))
		return;

	spin_lock(&fs_info->treelog_bg_lock);
	if (fs_info->treelog_bg == bg->start)
		fs_info->treelog_bg = 0;
	spin_unlock(&fs_info->treelog_bg_lock);
}

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))
		mutex_lock(&root->fs_info->zoned_data_reloc_io_lock);
}

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))
		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
Commit	Line	Data
5b316468 NA	1	/* SPDX-License-Identifier: GPL-2.0 */
	2
	3	#ifndef BTRFS_ZONED_H
	4	#define BTRFS_ZONED_H
	5
	6	#include <linux/types.h>
b70f5097	7	#include <linux/blkdev.h>
9b569ea0	8	#include "messages.h"
12659251 NA	9	#include "volumes.h"
12659251 NA	10	#include "disk-io.h"
40ab3be1	11	#include "block-group.h"
869f4cdc	12	#include "btrfs_inode.h"
5b316468	13
bb5a098d	14	#define BTRFS_DEFAULT_RECLAIM_THRESH (75)
18bb8bbf	15
5b316468 NA	16	struct btrfs_zoned_device_info {
	17	/*
	18	* Number of zones, zone size and types of zones if bdev is a
	19	* zoned block device.
	20	*/
	21	u64 zone_size;
	22	u8 zone_size_shift;
	23	u32 nr_zones;
ea6f8ddc NA	24	unsigned int max_active_zones;
ea6f8ddc NA	25	atomic_t active_zones_left;
5b316468 NA	26	unsigned long *seq_zones;
5b316468 NA	27	unsigned long *empty_zones;
ea6f8ddc	28	unsigned long *active_zones;
16beac87	29	struct blk_zone *zone_cache;
12659251	30	struct blk_zone sb_zones[2 * BTRFS_SUPER_MIRROR_MAX];
5b316468 NA	31	};
	32
	33	#ifdef CONFIG_BLK_DEV_ZONED
	34	int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos,
	35	struct blk_zone *zone);
73651042	36	int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info);
16beac87	37	int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache);
5b316468	38	void btrfs_destroy_dev_zone_info(struct btrfs_device *device);
21e61ec6	39	struct btrfs_zoned_device_info btrfs_clone_dev_zone_info(struct btrfs_device orig_dev);
b70f5097	40	int btrfs_check_zoned_mode(struct btrfs_fs_info *fs_info);
5d1ab66c	41	int btrfs_check_mountopts_zoned(struct btrfs_fs_info *info);
12659251 NA	42	int btrfs_sb_log_location_bdev(struct block_device *bdev, int mirror, int rw,
	43	u64 *bytenr_ret);
	44	int btrfs_sb_log_location(struct btrfs_device *device, int mirror, int rw,
	45	u64 *bytenr_ret);
8376d9e1	46	int btrfs_advance_sb_log(struct btrfs_device *device, int mirror);
12659251	47	int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror);
1cd6121f NA	48	u64 btrfs_find_allocatable_zones(struct btrfs_device *device, u64 hole_start,
	49	u64 hole_end, u64 num_bytes);
	50	int btrfs_reset_device_zone(struct btrfs_device *device, u64 physical,
	51	u64 length, u64 *bytes);
	52	int btrfs_ensure_empty_zones(struct btrfs_device *device, u64 start, u64 size);
a94794d5	53	int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new);
169e0da9	54	void btrfs_calc_zone_unusable(struct btrfs_block_group *cache);
d3575156 NA	55	void btrfs_redirty_list_add(struct btrfs_transaction *trans,
	56	struct extent_buffer *eb);
	57	void btrfs_free_redirty_list(struct btrfs_transaction *trans);
921603c7	58	bool btrfs_use_zone_append(struct btrfs_bio *bbio);
69ccf3f4	59	void btrfs_record_physical_zoned(struct btrfs_bio *bbio);
d8e3fb10	60	void btrfs_rewrite_logical_zoned(struct btrfs_ordered_extent *ordered);
0bc09ca1 NA	61	bool btrfs_check_meta_write_pointer(struct btrfs_fs_info *fs_info,
	62	struct extent_buffer *eb,
	63	struct btrfs_block_group **cache_ret);
	64	void btrfs_revert_meta_write_pointer(struct btrfs_block_group *cache,
	65	struct extent_buffer *eb);
de17addc	66	int btrfs_zoned_issue_zeroout(struct btrfs_device *device, u64 physical, u64 length);
7db1c5d1 NA	67	int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev, u64 logical,
7db1c5d1 NA	68	u64 physical_start, u64 physical_pos);
afba2bc0 NA	69	bool btrfs_zone_activate(struct btrfs_block_group *block_group);
afba2bc0 NA	70	int btrfs_zone_finish(struct btrfs_block_group *block_group);
82187d2e	71	bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, u64 flags);
be1a1d7a NA	72	void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info, u64 logical,
be1a1d7a NA	73	u64 length);
56fbb0a4 NA	74	void btrfs_schedule_zone_finish_bg(struct btrfs_block_group *bg,
56fbb0a4 NA	75	struct extent_buffer *eb);
c2707a25	76	void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg);
16beac87	77	void btrfs_free_zone_cache(struct btrfs_fs_info *fs_info);
3687fcb0	78	bool btrfs_zoned_should_reclaim(struct btrfs_fs_info *fs_info);
343d8a30 NA	79	void btrfs_zoned_release_data_reloc_bg(struct btrfs_fs_info *fs_info, u64 logical,
343d8a30 NA	80	u64 length);
393f646e	81	int btrfs_zone_finish_one_bg(struct btrfs_fs_info *fs_info);
b0931513 NA	82	int btrfs_zoned_activate_one_bg(struct btrfs_fs_info *fs_info,
b0931513 NA	83	struct btrfs_space_info *space_info, bool do_finish);
5b316468 NA	84	#else /* CONFIG_BLK_DEV_ZONED */
	85	static inline int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos,
	86	struct blk_zone *zone)
	87	{
	88	return 0;
	89	}
	90
73651042 NA	91	static inline int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info)
	92	{
	93	return 0;
	94	}
	95
16beac87 NA	96	static inline int btrfs_get_dev_zone_info(struct btrfs_device *device,
16beac87 NA	97	bool populate_cache)
5b316468 NA	98	{
	99	return 0;
	100	}
	101
	102	static inline void btrfs_destroy_dev_zone_info(struct btrfs_device *device) { }
	103
21e61ec6 JT	104	/*
	105	* In case the kernel is compiled without CONFIG_BLK_DEV_ZONED we'll never call
	106	* into btrfs_clone_dev_zone_info() so it's safe to return NULL here.
	107	*/
	108	static inline struct btrfs_zoned_device_info *btrfs_clone_dev_zone_info(
	109	struct btrfs_device *orig_dev)
	110	{
	111	return NULL;
	112	}
	113
b70f5097 NA	114	static inline int btrfs_check_zoned_mode(const struct btrfs_fs_info *fs_info)
	115	{
	116	if (!btrfs_is_zoned(fs_info))
	117	return 0;
	118
	119	btrfs_err(fs_info, "zoned block devices support is not enabled");
	120	return -EOPNOTSUPP;
	121	}
	122
5d1ab66c NA	123	static inline int btrfs_check_mountopts_zoned(struct btrfs_fs_info *info)
	124	{
	125	return 0;
	126	}
	127
12659251 NA	128	static inline int btrfs_sb_log_location_bdev(struct block_device *bdev,
	129	int mirror, int rw, u64 *bytenr_ret)
	130	{
	131	*bytenr_ret = btrfs_sb_offset(mirror);
	132	return 0;
	133	}
	134
	135	static inline int btrfs_sb_log_location(struct btrfs_device *device, int mirror,
	136	int rw, u64 *bytenr_ret)
	137	{
	138	*bytenr_ret = btrfs_sb_offset(mirror);
	139	return 0;
	140	}
	141
8376d9e1 NA	142	static inline int btrfs_advance_sb_log(struct btrfs_device *device, int mirror)
	143	{
	144	return 0;
	145	}
12659251 NA	146
	147	static inline int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror)
	148	{
	149	return 0;
	150	}
	151
1cd6121f NA	152	static inline u64 btrfs_find_allocatable_zones(struct btrfs_device *device,
	153	u64 hole_start, u64 hole_end,
	154	u64 num_bytes)
	155	{
	156	return hole_start;
	157	}
	158
	159	static inline int btrfs_reset_device_zone(struct btrfs_device *device,
	160	u64 physical, u64 length, u64 *bytes)
	161	{
	162	*bytes = 0;
	163	return 0;
	164	}
	165
	166	static inline int btrfs_ensure_empty_zones(struct btrfs_device *device,
	167	u64 start, u64 size)
	168	{
	169	return 0;
	170	}
	171
08e11a3d	172	static inline int btrfs_load_block_group_zone_info(
a94794d5	173	struct btrfs_block_group *cache, bool new)
08e11a3d NA	174	{
	175	return 0;
	176	}
	177
169e0da9 NA	178	static inline void btrfs_calc_zone_unusable(struct btrfs_block_group *cache) { }
169e0da9 NA	179
d3575156 NA	180	static inline void btrfs_redirty_list_add(struct btrfs_transaction *trans,
	181	struct extent_buffer *eb) { }
	182	static inline void btrfs_free_redirty_list(struct btrfs_transaction *trans) { }
	183
921603c7	184	static inline bool btrfs_use_zone_append(struct btrfs_bio *bbio)
08f45559 JT	185	{
	186	return false;
	187	}
d8e3fb10	188
69ccf3f4	189	static inline void btrfs_record_physical_zoned(struct btrfs_bio *bbio)
d8e3fb10 NA	190	{
	191	}
	192
	193	static inline void btrfs_rewrite_logical_zoned(
	194	struct btrfs_ordered_extent *ordered) { }
	195
0bc09ca1 NA	196	static inline bool btrfs_check_meta_write_pointer(struct btrfs_fs_info *fs_info,
	197	struct extent_buffer *eb,
	198	struct btrfs_block_group **cache_ret)
	199	{
	200	return true;
	201	}
	202
	203	static inline void btrfs_revert_meta_write_pointer(
	204	struct btrfs_block_group *cache,
	205	struct extent_buffer *eb)
	206	{
	207	}
	208
de17addc NA	209	static inline int btrfs_zoned_issue_zeroout(struct btrfs_device *device,
	210	u64 physical, u64 length)
	211	{
	212	return -EOPNOTSUPP;
	213	}
	214
7db1c5d1 NA	215	static inline int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev,
	216	u64 logical, u64 physical_start,
	217	u64 physical_pos)
	218	{
	219	return -EOPNOTSUPP;
	220	}
	221
afba2bc0 NA	222	static inline bool btrfs_zone_activate(struct btrfs_block_group *block_group)
	223	{
	224	return true;
	225	}
	226
	227	static inline int btrfs_zone_finish(struct btrfs_block_group *block_group)
	228	{
	229	return 0;
	230	}
	231
a85f05e5	232	static inline bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices,
82187d2e	233	u64 flags)
a85f05e5 NA	234	{
	235	return true;
	236	}
	237
be1a1d7a NA	238	static inline void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info,
	239	u64 logical, u64 length) { }
	240
56fbb0a4 NA	241	static inline void btrfs_schedule_zone_finish_bg(struct btrfs_block_group *bg,
	242	struct extent_buffer *eb) { }
	243
c2707a25 JT	244	static inline void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg) { }
c2707a25 JT	245
16beac87	246	static inline void btrfs_free_zone_cache(struct btrfs_fs_info *fs_info) { }
3687fcb0 JT	247
	248	static inline bool btrfs_zoned_should_reclaim(struct btrfs_fs_info *fs_info)
	249	{
	250	return false;
	251	}
343d8a30 NA	252
	253	static inline void btrfs_zoned_release_data_reloc_bg(struct btrfs_fs_info *fs_info,
	254	u64 logical, u64 length) { }
393f646e NA	255
	256	static inline int btrfs_zone_finish_one_bg(struct btrfs_fs_info *fs_info)
	257	{
	258	return 1;
	259	}
	260
b0931513 NA	261	static inline int btrfs_zoned_activate_one_bg(struct btrfs_fs_info *fs_info,
	262	struct btrfs_space_info *space_info,
	263	bool do_finish)
	264	{
	265	/* Consider all the block groups are active */
	266	return 0;
	267	}
	268
5b316468 NA	269	#endif
	270
	271	static inline bool btrfs_dev_is_sequential(struct btrfs_device *device, u64 pos)
	272	{
	273	struct btrfs_zoned_device_info *zone_info = device->zone_info;
	274
	275	if (!zone_info)
	276	return false;
	277
	278	return test_bit(pos >> zone_info->zone_size_shift, zone_info->seq_zones);
	279	}
	280
	281	static inline bool btrfs_dev_is_empty_zone(struct btrfs_device *device, u64 pos)
	282	{
	283	struct btrfs_zoned_device_info *zone_info = device->zone_info;
	284
	285	if (!zone_info)
	286	return true;
	287
	288	return test_bit(pos >> zone_info->zone_size_shift, zone_info->empty_zones);
	289	}
	290
	291	static inline void btrfs_dev_set_empty_zone_bit(struct btrfs_device *device,
	292	u64 pos, bool set)
	293	{
	294	struct btrfs_zoned_device_info *zone_info = device->zone_info;
	295	unsigned int zno;
	296
	297	if (!zone_info)
	298	return;
	299
	300	zno = pos >> zone_info->zone_size_shift;
	301	if (set)
	302	set_bit(zno, zone_info->empty_zones);
	303	else
	304	clear_bit(zno, zone_info->empty_zones);
	305	}
	306
	307	static inline void btrfs_dev_set_zone_empty(struct btrfs_device *device, u64 pos)
	308	{
	309	btrfs_dev_set_empty_zone_bit(device, pos, true);
	310	}
	311
	312	static inline void btrfs_dev_clear_zone_empty(struct btrfs_device *device, u64 pos)
	313	{
	314	btrfs_dev_set_empty_zone_bit(device, pos, false);
	315	}
	316
b70f5097 NA	317	static inline bool btrfs_check_device_zone_type(const struct btrfs_fs_info *fs_info,
	318	struct block_device *bdev)
	319	{
b70f5097	320	if (btrfs_is_zoned(fs_info)) {
3c9daa09 JT	321	/*
	322	* We can allow a regular device on a zoned filesystem, because
	323	* we will emulate the zoned capabilities.
	324	*/
	325	if (!bdev_is_zoned(bdev))
	326	return true;
	327
	328	return fs_info->zone_size ==
	329	(bdev_zone_sectors(bdev) << SECTOR_SHIFT);
b70f5097 NA	330	}
	331
	332	/* Do not allow Host Manged zoned device */
	333	return bdev_zoned_model(bdev) != BLK_ZONED_HM;
	334	}
	335
12659251 NA	336	static inline bool btrfs_check_super_location(struct btrfs_device *device, u64 pos)
	337	{
	338	/*
	339	* On a non-zoned device, any address is OK. On a zoned device,
	340	* non-SEQUENTIAL WRITE REQUIRED zones are capable.
	341	*/
	342	return device->zone_info == NULL \|\| !btrfs_dev_is_sequential(device, pos);
	343	}
	344
dcba6e48 NA	345	static inline bool btrfs_can_zone_reset(struct btrfs_device *device,
	346	u64 physical, u64 length)
	347	{
	348	u64 zone_size;
	349
	350	if (!btrfs_dev_is_sequential(device, physical))
	351	return false;
	352
	353	zone_size = device->zone_info->zone_size;
	354	if (!IS_ALIGNED(physical, zone_size) \|\| !IS_ALIGNED(length, zone_size))
	355	return false;
	356
	357	return true;
	358	}
	359
0bc09ca1 NA	360	static inline void btrfs_zoned_meta_io_lock(struct btrfs_fs_info *fs_info)
	361	{
	362	if (!btrfs_is_zoned(fs_info))
	363	return;
	364	mutex_lock(&fs_info->zoned_meta_io_lock);
	365	}
	366
	367	static inline void btrfs_zoned_meta_io_unlock(struct btrfs_fs_info *fs_info)
	368	{
	369	if (!btrfs_is_zoned(fs_info))
	370	return;
	371	mutex_unlock(&fs_info->zoned_meta_io_lock);
	372	}
	373
40ab3be1 NA	374	static inline void btrfs_clear_treelog_bg(struct btrfs_block_group *bg)
	375	{
	376	struct btrfs_fs_info *fs_info = bg->fs_info;
	377
	378	if (!btrfs_is_zoned(fs_info))
	379	return;
	380
	381	spin_lock(&fs_info->treelog_bg_lock);
	382	if (fs_info->treelog_bg == bg->start)
	383	fs_info->treelog_bg = 0;
	384	spin_unlock(&fs_info->treelog_bg_lock);
	385	}
	386
869f4cdc JT	387	static inline void btrfs_zoned_data_reloc_lock(struct btrfs_inode *inode)
	388	{
	389	struct btrfs_root *root = inode->root;
	390
	391	if (btrfs_is_data_reloc_root(root) && btrfs_is_zoned(root->fs_info))
5f0addf7	392	mutex_lock(&root->fs_info->zoned_data_reloc_io_lock);
869f4cdc JT	393	}
	394
	395	static inline void btrfs_zoned_data_reloc_unlock(struct btrfs_inode *inode)
	396	{
	397	struct btrfs_root *root = inode->root;
	398
	399	if (btrfs_is_data_reloc_root(root) && btrfs_is_zoned(root->fs_info))
5f0addf7	400	mutex_unlock(&root->fs_info->zoned_data_reloc_io_lock);
869f4cdc JT	401	}
869f4cdc JT	402
1bfd4767 NA	403	static inline bool btrfs_zoned_bg_is_full(const struct btrfs_block_group *bg)
	404	{
	405	ASSERT(btrfs_is_zoned(bg->fs_info));
	406	return (bg->alloc_offset == bg->zone_capacity);
	407	}
	408
5b316468	409	#endif