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