| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef _XFS_ZONE_ALLOC_H |
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| 3 | #define _XFS_ZONE_ALLOC_H |
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| 4 | |
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| 5 | struct iomap_ioend; |
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| 6 | struct xfs_open_zone; |
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| 7 | |
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| 8 | struct xfs_zone_alloc_ctx { |
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| 9 | struct xfs_open_zone *open_zone; |
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| 10 | xfs_filblks_t reserved_blocks; |
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| 11 | }; |
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| 12 | |
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| 13 | /* |
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| 14 | * Grab any available space, even if it is less than what the caller asked for. |
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| 15 | */ |
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| 16 | #define XFS_ZR_GREEDY (1U << 0) |
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| 17 | /* |
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| 18 | * Only grab instantly available space, don't wait or GC. |
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| 19 | */ |
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| 20 | #define XFS_ZR_NOWAIT (1U << 1) |
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| 21 | /* |
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| 22 | * Dip into the reserved pool. |
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| 23 | */ |
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| 24 | #define XFS_ZR_RESERVED (1U << 2) |
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| 25 | |
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| 26 | int xfs_zoned_space_reserve(struct xfs_mount *mp, xfs_filblks_t count_fsb, |
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| 27 | unsigned int flags, struct xfs_zone_alloc_ctx *ac); |
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| 28 | void xfs_zoned_space_unreserve(struct xfs_mount *mp, |
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| 29 | struct xfs_zone_alloc_ctx *ac); |
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| 30 | void xfs_zoned_add_available(struct xfs_mount *mp, xfs_filblks_t count_fsb); |
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| 31 | |
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| 32 | void xfs_zone_alloc_and_submit(struct iomap_ioend *ioend, |
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| 33 | struct xfs_open_zone **oz); |
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| 34 | int xfs_zone_free_blocks(struct xfs_trans *tp, struct xfs_rtgroup *rtg, |
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| 35 | xfs_fsblock_t fsbno, xfs_filblks_t len); |
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| 36 | int xfs_zoned_end_io(struct xfs_inode *ip, xfs_off_t offset, xfs_off_t count, |
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| 37 | xfs_daddr_t daddr, struct xfs_open_zone *oz, |
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| 38 | xfs_fsblock_t old_startblock); |
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| 39 | void xfs_open_zone_put(struct xfs_open_zone *oz); |
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| 40 | |
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| 41 | void xfs_zoned_wake_all(struct xfs_mount *mp); |
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| 42 | bool xfs_zone_rgbno_is_valid(struct xfs_rtgroup *rtg, xfs_rgnumber_t rgbno); |
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| 43 | void xfs_mark_rtg_boundary(struct iomap_ioend *ioend); |
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| 44 | |
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| 45 | uint64_t xfs_zoned_default_resblks(struct xfs_mount *mp, |
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| 46 | enum xfs_free_counter ctr); |
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| 47 | void xfs_zoned_show_stats(struct seq_file *m, struct xfs_mount *mp); |
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| 48 | |
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| 49 | #ifdef CONFIG_XFS_RT |
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| 50 | int xfs_mount_zones(struct xfs_mount *mp); |
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| 51 | void xfs_unmount_zones(struct xfs_mount *mp); |
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| 52 | void xfs_zone_gc_start(struct xfs_mount *mp); |
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| 53 | void xfs_zone_gc_stop(struct xfs_mount *mp); |
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| 54 | #else |
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| 55 | static inline int xfs_mount_zones(struct xfs_mount *mp) |
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| 56 | { |
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| 57 | return -EIO; |
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| 58 | } |
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| 59 | static inline void xfs_unmount_zones(struct xfs_mount *mp) |
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| 60 | { |
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| 61 | } |
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| 62 | static inline void xfs_zone_gc_start(struct xfs_mount *mp) |
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| 63 | { |
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| 64 | } |
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| 65 | static inline void xfs_zone_gc_stop(struct xfs_mount *mp) |
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| 66 | { |
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| 67 | } |
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| 68 | #endif /* CONFIG_XFS_RT */ |
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| 69 | |
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| 70 | #endif /* _XFS_ZONE_ALLOC_H */ |
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| 71 | |
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