[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 "volumes.h"
#include "disk-io.h"
#include "block-group.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 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 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);
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);
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_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);
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,
			     int raid_index);
void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info, u64 logical,
			     u64 length);
void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg);
#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)
{
	return 0;
}

static inline void btrfs_destroy_dev_zone_info(struct btrfs_device *device) { }

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_inode *inode, u64 start)
{
	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)
{
	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 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;
}

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,
					   int raid_index)
{
	return true;
}

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

static inline void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg) { }

#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);
}

#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>
12659251 NA	8	#include "volumes.h"
12659251 NA	9	#include "disk-io.h"
40ab3be1	10	#include "block-group.h"
5b316468	11
18bb8bbf JT	12	/*
	13	* Block groups with more than this value (percents) of unusable space will be
	14	* scheduled for background reclaim.
	15	*/
	16	#define BTRFS_DEFAULT_RECLAIM_THRESH 75
	17
5b316468 NA	18	struct btrfs_zoned_device_info {
	19	/*
	20	* Number of zones, zone size and types of zones if bdev is a
	21	* zoned block device.
	22	*/
	23	u64 zone_size;
	24	u8 zone_size_shift;
	25	u32 nr_zones;
ea6f8ddc NA	26	unsigned int max_active_zones;
ea6f8ddc NA	27	atomic_t active_zones_left;
5b316468 NA	28	unsigned long *seq_zones;
5b316468 NA	29	unsigned long *empty_zones;
ea6f8ddc	30	unsigned long *active_zones;
12659251	31	struct blk_zone sb_zones[2 * BTRFS_SUPER_MIRROR_MAX];
5b316468 NA	32	};
	33
	34	#ifdef CONFIG_BLK_DEV_ZONED
	35	int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos,
	36	struct blk_zone *zone);
73651042	37	int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info);
5b316468 NA	38	int btrfs_get_dev_zone_info(struct btrfs_device *device);
5b316468 NA	39	void btrfs_destroy_dev_zone_info(struct btrfs_device *device);
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);
e380adfc	58	bool btrfs_use_zone_append(struct btrfs_inode *inode, u64 start);
d8e3fb10 NA	59	void btrfs_record_physical_zoned(struct inode *inode, u64 file_offset,
	60	struct bio *bio);
	61	void btrfs_rewrite_logical_zoned(struct btrfs_ordered_extent *ordered);
0bc09ca1 NA	62	bool btrfs_check_meta_write_pointer(struct btrfs_fs_info *fs_info,
	63	struct extent_buffer *eb,
	64	struct btrfs_block_group **cache_ret);
	65	void btrfs_revert_meta_write_pointer(struct btrfs_block_group *cache,
	66	struct extent_buffer *eb);
de17addc	67	int btrfs_zoned_issue_zeroout(struct btrfs_device *device, u64 physical, u64 length);
7db1c5d1 NA	68	int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev, u64 logical,
7db1c5d1 NA	69	u64 physical_start, u64 physical_pos);
e7ff9e6b JT	70	struct btrfs_device btrfs_zoned_get_device(struct btrfs_fs_info fs_info,
e7ff9e6b JT	71	u64 logical, u64 length);
afba2bc0 NA	72	bool btrfs_zone_activate(struct btrfs_block_group *block_group);
afba2bc0 NA	73	int btrfs_zone_finish(struct btrfs_block_group *block_group);
a85f05e5 NA	74	bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices,
a85f05e5 NA	75	int raid_index);
be1a1d7a NA	76	void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info, u64 logical,
be1a1d7a NA	77	u64 length);
c2707a25	78	void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg);
5b316468 NA	79	#else /* CONFIG_BLK_DEV_ZONED */
	80	static inline int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos,
	81	struct blk_zone *zone)
	82	{
	83	return 0;
	84	}
	85
73651042 NA	86	static inline int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info)
	87	{
	88	return 0;
	89	}
	90
5b316468 NA	91	static inline int btrfs_get_dev_zone_info(struct btrfs_device *device)
	92	{
	93	return 0;
	94	}
	95
	96	static inline void btrfs_destroy_dev_zone_info(struct btrfs_device *device) { }
	97
b70f5097 NA	98	static inline int btrfs_check_zoned_mode(const struct btrfs_fs_info *fs_info)
	99	{
	100	if (!btrfs_is_zoned(fs_info))
	101	return 0;
	102
	103	btrfs_err(fs_info, "zoned block devices support is not enabled");
	104	return -EOPNOTSUPP;
	105	}
	106
5d1ab66c NA	107	static inline int btrfs_check_mountopts_zoned(struct btrfs_fs_info *info)
	108	{
	109	return 0;
	110	}
	111
12659251 NA	112	static inline int btrfs_sb_log_location_bdev(struct block_device *bdev,
	113	int mirror, int rw, u64 *bytenr_ret)
	114	{
	115	*bytenr_ret = btrfs_sb_offset(mirror);
	116	return 0;
	117	}
	118
	119	static inline int btrfs_sb_log_location(struct btrfs_device *device, int mirror,
	120	int rw, u64 *bytenr_ret)
	121	{
	122	*bytenr_ret = btrfs_sb_offset(mirror);
	123	return 0;
	124	}
	125
8376d9e1 NA	126	static inline int btrfs_advance_sb_log(struct btrfs_device *device, int mirror)
	127	{
	128	return 0;
	129	}
12659251 NA	130
	131	static inline int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror)
	132	{
	133	return 0;
	134	}
	135
1cd6121f NA	136	static inline u64 btrfs_find_allocatable_zones(struct btrfs_device *device,
	137	u64 hole_start, u64 hole_end,
	138	u64 num_bytes)
	139	{
	140	return hole_start;
	141	}
	142
	143	static inline int btrfs_reset_device_zone(struct btrfs_device *device,
	144	u64 physical, u64 length, u64 *bytes)
	145	{
	146	*bytes = 0;
	147	return 0;
	148	}
	149
	150	static inline int btrfs_ensure_empty_zones(struct btrfs_device *device,
	151	u64 start, u64 size)
	152	{
	153	return 0;
	154	}
	155
08e11a3d	156	static inline int btrfs_load_block_group_zone_info(
a94794d5	157	struct btrfs_block_group *cache, bool new)
08e11a3d NA	158	{
	159	return 0;
	160	}
	161
169e0da9 NA	162	static inline void btrfs_calc_zone_unusable(struct btrfs_block_group *cache) { }
169e0da9 NA	163
d3575156 NA	164	static inline void btrfs_redirty_list_add(struct btrfs_transaction *trans,
	165	struct extent_buffer *eb) { }
	166	static inline void btrfs_free_redirty_list(struct btrfs_transaction *trans) { }
	167
e380adfc	168	static inline bool btrfs_use_zone_append(struct btrfs_inode *inode, u64 start)
08f45559 JT	169	{
	170	return false;
	171	}
d8e3fb10 NA	172
	173	static inline void btrfs_record_physical_zoned(struct inode *inode,
	174	u64 file_offset, struct bio *bio)
	175	{
	176	}
	177
	178	static inline void btrfs_rewrite_logical_zoned(
	179	struct btrfs_ordered_extent *ordered) { }
	180
0bc09ca1 NA	181	static inline bool btrfs_check_meta_write_pointer(struct btrfs_fs_info *fs_info,
	182	struct extent_buffer *eb,
	183	struct btrfs_block_group **cache_ret)
	184	{
	185	return true;
	186	}
	187
	188	static inline void btrfs_revert_meta_write_pointer(
	189	struct btrfs_block_group *cache,
	190	struct extent_buffer *eb)
	191	{
	192	}
	193
de17addc NA	194	static inline int btrfs_zoned_issue_zeroout(struct btrfs_device *device,
	195	u64 physical, u64 length)
	196	{
	197	return -EOPNOTSUPP;
	198	}
	199
7db1c5d1 NA	200	static inline int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev,
	201	u64 logical, u64 physical_start,
	202	u64 physical_pos)
	203	{
	204	return -EOPNOTSUPP;
	205	}
	206
e7ff9e6b JT	207	static inline struct btrfs_device *btrfs_zoned_get_device(
	208	struct btrfs_fs_info *fs_info,
	209	u64 logical, u64 length)
	210	{
	211	return ERR_PTR(-EOPNOTSUPP);
	212	}
	213
afba2bc0 NA	214	static inline bool btrfs_zone_activate(struct btrfs_block_group *block_group)
	215	{
	216	return true;
	217	}
	218
	219	static inline int btrfs_zone_finish(struct btrfs_block_group *block_group)
	220	{
	221	return 0;
	222	}
	223
a85f05e5 NA	224	static inline bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices,
	225	int raid_index)
	226	{
	227	return true;
	228	}
	229
be1a1d7a NA	230	static inline void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info,
	231	u64 logical, u64 length) { }
	232
c2707a25 JT	233	static inline void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg) { }
c2707a25 JT	234
5b316468 NA	235	#endif
	236
	237	static inline bool btrfs_dev_is_sequential(struct btrfs_device *device, u64 pos)
	238	{
	239	struct btrfs_zoned_device_info *zone_info = device->zone_info;
	240
	241	if (!zone_info)
	242	return false;
	243
	244	return test_bit(pos >> zone_info->zone_size_shift, zone_info->seq_zones);
	245	}
	246
	247	static inline bool btrfs_dev_is_empty_zone(struct btrfs_device *device, u64 pos)
	248	{
	249	struct btrfs_zoned_device_info *zone_info = device->zone_info;
	250
	251	if (!zone_info)
	252	return true;
	253
	254	return test_bit(pos >> zone_info->zone_size_shift, zone_info->empty_zones);
	255	}
	256
	257	static inline void btrfs_dev_set_empty_zone_bit(struct btrfs_device *device,
	258	u64 pos, bool set)
	259	{
	260	struct btrfs_zoned_device_info *zone_info = device->zone_info;
	261	unsigned int zno;
	262
	263	if (!zone_info)
	264	return;
	265
	266	zno = pos >> zone_info->zone_size_shift;
	267	if (set)
	268	set_bit(zno, zone_info->empty_zones);
	269	else
	270	clear_bit(zno, zone_info->empty_zones);
	271	}
	272
	273	static inline void btrfs_dev_set_zone_empty(struct btrfs_device *device, u64 pos)
	274	{
	275	btrfs_dev_set_empty_zone_bit(device, pos, true);
	276	}
	277
	278	static inline void btrfs_dev_clear_zone_empty(struct btrfs_device *device, u64 pos)
	279	{
	280	btrfs_dev_set_empty_zone_bit(device, pos, false);
	281	}
	282
b70f5097 NA	283	static inline bool btrfs_check_device_zone_type(const struct btrfs_fs_info *fs_info,
	284	struct block_device *bdev)
	285	{
b70f5097	286	if (btrfs_is_zoned(fs_info)) {
3c9daa09 JT	287	/*
	288	* We can allow a regular device on a zoned filesystem, because
	289	* we will emulate the zoned capabilities.
	290	*/
	291	if (!bdev_is_zoned(bdev))
	292	return true;
	293
	294	return fs_info->zone_size ==
	295	(bdev_zone_sectors(bdev) << SECTOR_SHIFT);
b70f5097 NA	296	}
	297
	298	/* Do not allow Host Manged zoned device */
	299	return bdev_zoned_model(bdev) != BLK_ZONED_HM;
	300	}
	301
12659251 NA	302	static inline bool btrfs_check_super_location(struct btrfs_device *device, u64 pos)
	303	{
	304	/*
	305	* On a non-zoned device, any address is OK. On a zoned device,
	306	* non-SEQUENTIAL WRITE REQUIRED zones are capable.
	307	*/
	308	return device->zone_info == NULL \|\| !btrfs_dev_is_sequential(device, pos);
	309	}
	310
dcba6e48 NA	311	static inline bool btrfs_can_zone_reset(struct btrfs_device *device,
	312	u64 physical, u64 length)
	313	{
	314	u64 zone_size;
	315
	316	if (!btrfs_dev_is_sequential(device, physical))
	317	return false;
	318
	319	zone_size = device->zone_info->zone_size;
	320	if (!IS_ALIGNED(physical, zone_size) \|\| !IS_ALIGNED(length, zone_size))
	321	return false;
	322
	323	return true;
	324	}
	325
0bc09ca1 NA	326	static inline void btrfs_zoned_meta_io_lock(struct btrfs_fs_info *fs_info)
	327	{
	328	if (!btrfs_is_zoned(fs_info))
	329	return;
	330	mutex_lock(&fs_info->zoned_meta_io_lock);
	331	}
	332
	333	static inline void btrfs_zoned_meta_io_unlock(struct btrfs_fs_info *fs_info)
	334	{
	335	if (!btrfs_is_zoned(fs_info))
	336	return;
	337	mutex_unlock(&fs_info->zoned_meta_io_lock);
	338	}
	339
40ab3be1 NA	340	static inline void btrfs_clear_treelog_bg(struct btrfs_block_group *bg)
	341	{
	342	struct btrfs_fs_info *fs_info = bg->fs_info;
	343
	344	if (!btrfs_is_zoned(fs_info))
	345	return;
	346
	347	spin_lock(&fs_info->treelog_bg_lock);
	348	if (fs_info->treelog_bg == bg->start)
	349	fs_info->treelog_bg = 0;
	350	spin_unlock(&fs_info->treelog_bg_lock);
	351	}
	352
5b316468	353	#endif