[linux.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"
#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;
	u64 max_zone_append_size;
	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);
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, 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);
#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) { }

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,
					   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) { }
#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>
12659251 NA	8	#include "volumes.h"
12659251 NA	9	#include "disk-io.h"
40ab3be1	10	#include "block-group.h"
869f4cdc	11	#include "btrfs_inode.h"
5b316468	12
bb5a098d	13	#define BTRFS_DEFAULT_RECLAIM_THRESH (75)
18bb8bbf	14
5b316468 NA	15	struct btrfs_zoned_device_info {
	16	/*
	17	* Number of zones, zone size and types of zones if bdev is a
	18	* zoned block device.
	19	*/
	20	u64 zone_size;
	21	u8 zone_size_shift;
c2ae7b77	22	u64 max_zone_append_size;
5b316468	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);
b70f5097	39	int btrfs_check_zoned_mode(struct btrfs_fs_info *fs_info);
5d1ab66c	40	int btrfs_check_mountopts_zoned(struct btrfs_fs_info *info);
12659251 NA	41	int btrfs_sb_log_location_bdev(struct block_device *bdev, int mirror, int rw,
	42	u64 *bytenr_ret);
	43	int btrfs_sb_log_location(struct btrfs_device *device, int mirror, int rw,
	44	u64 *bytenr_ret);
8376d9e1	45	int btrfs_advance_sb_log(struct btrfs_device *device, int mirror);
12659251	46	int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror);
1cd6121f NA	47	u64 btrfs_find_allocatable_zones(struct btrfs_device *device, u64 hole_start,
	48	u64 hole_end, u64 num_bytes);
	49	int btrfs_reset_device_zone(struct btrfs_device *device, u64 physical,
	50	u64 length, u64 *bytes);
	51	int btrfs_ensure_empty_zones(struct btrfs_device *device, u64 start, u64 size);
a94794d5	52	int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new);
169e0da9	53	void btrfs_calc_zone_unusable(struct btrfs_block_group *cache);
d3575156 NA	54	void btrfs_redirty_list_add(struct btrfs_transaction *trans,
	55	struct extent_buffer *eb);
	56	void btrfs_free_redirty_list(struct btrfs_transaction *trans);
e380adfc	57	bool btrfs_use_zone_append(struct btrfs_inode *inode, u64 start);
d8e3fb10 NA	58	void btrfs_record_physical_zoned(struct inode *inode, u64 file_offset,
	59	struct bio *bio);
	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);
e7ff9e6b JT	69	struct btrfs_device btrfs_zoned_get_device(struct btrfs_fs_info fs_info,
e7ff9e6b JT	70	u64 logical, u64 length);
afba2bc0 NA	71	bool btrfs_zone_activate(struct btrfs_block_group *block_group);
afba2bc0 NA	72	int btrfs_zone_finish(struct btrfs_block_group *block_group);
82187d2e	73	bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, u64 flags);
be1a1d7a NA	74	void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info, u64 logical,
be1a1d7a NA	75	u64 length);
56fbb0a4 NA	76	void btrfs_schedule_zone_finish_bg(struct btrfs_block_group *bg,
56fbb0a4 NA	77	struct extent_buffer *eb);
c2707a25	78	void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg);
16beac87	79	void btrfs_free_zone_cache(struct btrfs_fs_info *fs_info);
3687fcb0	80	bool btrfs_zoned_should_reclaim(struct btrfs_fs_info *fs_info);
343d8a30 NA	81	void btrfs_zoned_release_data_reloc_bg(struct btrfs_fs_info *fs_info, u64 logical,
343d8a30 NA	82	u64 length);
5b316468 NA	83	#else /* CONFIG_BLK_DEV_ZONED */
	84	static inline int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos,
	85	struct blk_zone *zone)
	86	{
	87	return 0;
	88	}
	89
73651042 NA	90	static inline int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info)
	91	{
	92	return 0;
	93	}
	94
16beac87 NA	95	static inline int btrfs_get_dev_zone_info(struct btrfs_device *device,
16beac87 NA	96	bool populate_cache)
5b316468 NA	97	{
	98	return 0;
	99	}
	100
	101	static inline void btrfs_destroy_dev_zone_info(struct btrfs_device *device) { }
	102
b70f5097 NA	103	static inline int btrfs_check_zoned_mode(const struct btrfs_fs_info *fs_info)
	104	{
	105	if (!btrfs_is_zoned(fs_info))
	106	return 0;
	107
	108	btrfs_err(fs_info, "zoned block devices support is not enabled");
	109	return -EOPNOTSUPP;
	110	}
	111
5d1ab66c NA	112	static inline int btrfs_check_mountopts_zoned(struct btrfs_fs_info *info)
	113	{
	114	return 0;
	115	}
	116
12659251 NA	117	static inline int btrfs_sb_log_location_bdev(struct block_device *bdev,
	118	int mirror, int rw, u64 *bytenr_ret)
	119	{
	120	*bytenr_ret = btrfs_sb_offset(mirror);
	121	return 0;
	122	}
	123
	124	static inline int btrfs_sb_log_location(struct btrfs_device *device, int mirror,
	125	int rw, u64 *bytenr_ret)
	126	{
	127	*bytenr_ret = btrfs_sb_offset(mirror);
	128	return 0;
	129	}
	130
8376d9e1 NA	131	static inline int btrfs_advance_sb_log(struct btrfs_device *device, int mirror)
	132	{
	133	return 0;
	134	}
12659251 NA	135
	136	static inline int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror)
	137	{
	138	return 0;
	139	}
	140
1cd6121f NA	141	static inline u64 btrfs_find_allocatable_zones(struct btrfs_device *device,
	142	u64 hole_start, u64 hole_end,
	143	u64 num_bytes)
	144	{
	145	return hole_start;
	146	}
	147
	148	static inline int btrfs_reset_device_zone(struct btrfs_device *device,
	149	u64 physical, u64 length, u64 *bytes)
	150	{
	151	*bytes = 0;
	152	return 0;
	153	}
	154
	155	static inline int btrfs_ensure_empty_zones(struct btrfs_device *device,
	156	u64 start, u64 size)
	157	{
	158	return 0;
	159	}
	160
08e11a3d	161	static inline int btrfs_load_block_group_zone_info(
a94794d5	162	struct btrfs_block_group *cache, bool new)
08e11a3d NA	163	{
	164	return 0;
	165	}
	166
169e0da9 NA	167	static inline void btrfs_calc_zone_unusable(struct btrfs_block_group *cache) { }
169e0da9 NA	168
d3575156 NA	169	static inline void btrfs_redirty_list_add(struct btrfs_transaction *trans,
	170	struct extent_buffer *eb) { }
	171	static inline void btrfs_free_redirty_list(struct btrfs_transaction *trans) { }
	172
e380adfc	173	static inline bool btrfs_use_zone_append(struct btrfs_inode *inode, u64 start)
08f45559 JT	174	{
	175	return false;
	176	}
d8e3fb10 NA	177
	178	static inline void btrfs_record_physical_zoned(struct inode *inode,
	179	u64 file_offset, struct bio *bio)
	180	{
	181	}
	182
	183	static inline void btrfs_rewrite_logical_zoned(
	184	struct btrfs_ordered_extent *ordered) { }
	185
0bc09ca1 NA	186	static inline bool btrfs_check_meta_write_pointer(struct btrfs_fs_info *fs_info,
	187	struct extent_buffer *eb,
	188	struct btrfs_block_group **cache_ret)
	189	{
	190	return true;
	191	}
	192
	193	static inline void btrfs_revert_meta_write_pointer(
	194	struct btrfs_block_group *cache,
	195	struct extent_buffer *eb)
	196	{
	197	}
	198
de17addc NA	199	static inline int btrfs_zoned_issue_zeroout(struct btrfs_device *device,
	200	u64 physical, u64 length)
	201	{
	202	return -EOPNOTSUPP;
	203	}
	204
7db1c5d1 NA	205	static inline int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev,
	206	u64 logical, u64 physical_start,
	207	u64 physical_pos)
	208	{
	209	return -EOPNOTSUPP;
	210	}
	211
e7ff9e6b JT	212	static inline struct btrfs_device *btrfs_zoned_get_device(
	213	struct btrfs_fs_info *fs_info,
	214	u64 logical, u64 length)
	215	{
	216	return ERR_PTR(-EOPNOTSUPP);
	217	}
	218
afba2bc0 NA	219	static inline bool btrfs_zone_activate(struct btrfs_block_group *block_group)
	220	{
	221	return true;
	222	}
	223
	224	static inline int btrfs_zone_finish(struct btrfs_block_group *block_group)
	225	{
	226	return 0;
	227	}
	228
a85f05e5	229	static inline bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices,
82187d2e	230	u64 flags)
a85f05e5 NA	231	{
	232	return true;
	233	}
	234
be1a1d7a NA	235	static inline void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info,
	236	u64 logical, u64 length) { }
	237
56fbb0a4 NA	238	static inline void btrfs_schedule_zone_finish_bg(struct btrfs_block_group *bg,
	239	struct extent_buffer *eb) { }
	240
c2707a25 JT	241	static inline void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg) { }
c2707a25 JT	242
16beac87	243	static inline void btrfs_free_zone_cache(struct btrfs_fs_info *fs_info) { }
3687fcb0 JT	244
	245	static inline bool btrfs_zoned_should_reclaim(struct btrfs_fs_info *fs_info)
	246	{
	247	return false;
	248	}
343d8a30 NA	249
	250	static inline void btrfs_zoned_release_data_reloc_bg(struct btrfs_fs_info *fs_info,
	251	u64 logical, u64 length) { }
5b316468 NA	252	#endif
	253
	254	static inline bool btrfs_dev_is_sequential(struct btrfs_device *device, u64 pos)
	255	{
	256	struct btrfs_zoned_device_info *zone_info = device->zone_info;
	257
	258	if (!zone_info)
	259	return false;
	260
	261	return test_bit(pos >> zone_info->zone_size_shift, zone_info->seq_zones);
	262	}
	263
	264	static inline bool btrfs_dev_is_empty_zone(struct btrfs_device *device, u64 pos)
	265	{
	266	struct btrfs_zoned_device_info *zone_info = device->zone_info;
	267
	268	if (!zone_info)
	269	return true;
	270
	271	return test_bit(pos >> zone_info->zone_size_shift, zone_info->empty_zones);
	272	}
	273
	274	static inline void btrfs_dev_set_empty_zone_bit(struct btrfs_device *device,
	275	u64 pos, bool set)
	276	{
	277	struct btrfs_zoned_device_info *zone_info = device->zone_info;
	278	unsigned int zno;
	279
	280	if (!zone_info)
	281	return;
	282
	283	zno = pos >> zone_info->zone_size_shift;
	284	if (set)
	285	set_bit(zno, zone_info->empty_zones);
	286	else
	287	clear_bit(zno, zone_info->empty_zones);
	288	}
	289
	290	static inline void btrfs_dev_set_zone_empty(struct btrfs_device *device, u64 pos)
	291	{
	292	btrfs_dev_set_empty_zone_bit(device, pos, true);
	293	}
	294
	295	static inline void btrfs_dev_clear_zone_empty(struct btrfs_device *device, u64 pos)
	296	{
	297	btrfs_dev_set_empty_zone_bit(device, pos, false);
	298	}
	299
b70f5097 NA	300	static inline bool btrfs_check_device_zone_type(const struct btrfs_fs_info *fs_info,
	301	struct block_device *bdev)
	302	{
b70f5097	303	if (btrfs_is_zoned(fs_info)) {
3c9daa09 JT	304	/*
	305	* We can allow a regular device on a zoned filesystem, because
	306	* we will emulate the zoned capabilities.
	307	*/
	308	if (!bdev_is_zoned(bdev))
	309	return true;
	310
	311	return fs_info->zone_size ==
	312	(bdev_zone_sectors(bdev) << SECTOR_SHIFT);
b70f5097 NA	313	}
	314
	315	/* Do not allow Host Manged zoned device */
	316	return bdev_zoned_model(bdev) != BLK_ZONED_HM;
	317	}
	318
12659251 NA	319	static inline bool btrfs_check_super_location(struct btrfs_device *device, u64 pos)
	320	{
	321	/*
	322	* On a non-zoned device, any address is OK. On a zoned device,
	323	* non-SEQUENTIAL WRITE REQUIRED zones are capable.
	324	*/
	325	return device->zone_info == NULL \|\| !btrfs_dev_is_sequential(device, pos);
	326	}
	327
dcba6e48 NA	328	static inline bool btrfs_can_zone_reset(struct btrfs_device *device,
	329	u64 physical, u64 length)
	330	{
	331	u64 zone_size;
	332
	333	if (!btrfs_dev_is_sequential(device, physical))
	334	return false;
	335
	336	zone_size = device->zone_info->zone_size;
	337	if (!IS_ALIGNED(physical, zone_size) \|\| !IS_ALIGNED(length, zone_size))
	338	return false;
	339
	340	return true;
	341	}
	342
0bc09ca1 NA	343	static inline void btrfs_zoned_meta_io_lock(struct btrfs_fs_info *fs_info)
	344	{
	345	if (!btrfs_is_zoned(fs_info))
	346	return;
	347	mutex_lock(&fs_info->zoned_meta_io_lock);
	348	}
	349
	350	static inline void btrfs_zoned_meta_io_unlock(struct btrfs_fs_info *fs_info)
	351	{
	352	if (!btrfs_is_zoned(fs_info))
	353	return;
	354	mutex_unlock(&fs_info->zoned_meta_io_lock);
	355	}
	356
40ab3be1 NA	357	static inline void btrfs_clear_treelog_bg(struct btrfs_block_group *bg)
	358	{
	359	struct btrfs_fs_info *fs_info = bg->fs_info;
	360
	361	if (!btrfs_is_zoned(fs_info))
	362	return;
	363
	364	spin_lock(&fs_info->treelog_bg_lock);
	365	if (fs_info->treelog_bg == bg->start)
	366	fs_info->treelog_bg = 0;
	367	spin_unlock(&fs_info->treelog_bg_lock);
	368	}
	369
869f4cdc JT	370	static inline void btrfs_zoned_data_reloc_lock(struct btrfs_inode *inode)
	371	{
	372	struct btrfs_root *root = inode->root;
	373
	374	if (btrfs_is_data_reloc_root(root) && btrfs_is_zoned(root->fs_info))
5f0addf7	375	mutex_lock(&root->fs_info->zoned_data_reloc_io_lock);
869f4cdc JT	376	}
	377
	378	static inline void btrfs_zoned_data_reloc_unlock(struct btrfs_inode *inode)
	379	{
	380	struct btrfs_root *root = inode->root;
	381
	382	if (btrfs_is_data_reloc_root(root) && btrfs_is_zoned(root->fs_info))
5f0addf7	383	mutex_unlock(&root->fs_info->zoned_data_reloc_io_lock);
869f4cdc JT	384	}
869f4cdc JT	385
1bfd4767 NA	386	static inline bool btrfs_zoned_bg_is_full(const struct btrfs_block_group *bg)
	387	{
	388	ASSERT(btrfs_is_zoned(bg->fs_info));
	389	return (bg->alloc_offset == bg->zone_capacity);
	390	}
	391
5b316468	392	#endif