| 1 | // SPDX-License-Identifier: GPL-2.0 |
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| 2 | /* |
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| 3 | * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. |
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| 4 | * All Rights Reserved. |
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| 5 | */ |
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| 6 | #ifndef __XFS_RTALLOC_H__ |
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| 7 | #define __XFS_RTALLOC_H__ |
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| 8 | |
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| 9 | /* kernel only definitions and functions */ |
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| 10 | |
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| 11 | struct xfs_mount; |
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| 12 | struct xfs_trans; |
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| 13 | |
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| 14 | #ifdef CONFIG_XFS_RT |
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| 15 | /* rtgroup superblock initialization */ |
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| 16 | int xfs_rtmount_readsb(struct xfs_mount *mp); |
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| 17 | void xfs_rtmount_freesb(struct xfs_mount *mp); |
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| 18 | |
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| 19 | /* |
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| 20 | * Initialize realtime fields in the mount structure. |
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| 21 | */ |
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| 22 | int /* error */ |
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| 23 | xfs_rtmount_init( |
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| 24 | struct xfs_mount *mp); /* file system mount structure */ |
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| 25 | void |
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| 26 | xfs_rtunmount_inodes( |
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| 27 | struct xfs_mount *mp); |
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| 28 | |
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| 29 | /* |
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| 30 | * Get the bitmap and summary inodes into the mount structure |
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| 31 | * at mount time. |
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| 32 | */ |
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| 33 | int /* error */ |
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| 34 | xfs_rtmount_inodes( |
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| 35 | struct xfs_mount *mp); /* file system mount structure */ |
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| 36 | |
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| 37 | /* |
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| 38 | * Grow the realtime area of the filesystem. |
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| 39 | */ |
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| 40 | int |
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| 41 | xfs_growfs_rt( |
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| 42 | struct xfs_mount *mp, /* file system mount structure */ |
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| 43 | xfs_growfs_rt_t *in); /* user supplied growfs struct */ |
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| 44 | |
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| 45 | int xfs_rtalloc_reinit_frextents(struct xfs_mount *mp); |
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| 46 | int xfs_growfs_check_rtgeom(const struct xfs_mount *mp, xfs_rfsblock_t dblocks, |
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| 47 | xfs_rfsblock_t rblocks, xfs_agblock_t rextsize); |
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| 48 | #else |
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| 49 | # define xfs_growfs_rt(mp,in) (-ENOSYS) |
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| 50 | # define xfs_rtalloc_reinit_frextents(m) (0) |
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| 51 | # define xfs_rtmount_readsb(mp) (0) |
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| 52 | # define xfs_rtmount_freesb(mp) ((void)0) |
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| 53 | static inline int /* error */ |
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| 54 | xfs_rtmount_init( |
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| 55 | xfs_mount_t *mp) /* file system mount structure */ |
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| 56 | { |
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| 57 | if (mp->m_sb.sb_rblocks == 0) |
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| 58 | return 0; |
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| 59 | |
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| 60 | xfs_warn(mp, "Not built with CONFIG_XFS_RT" ); |
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| 61 | return -ENOSYS; |
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| 62 | } |
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| 63 | # define xfs_rtmount_inodes(m) (((mp)->m_sb.sb_rblocks == 0)? 0 : (-ENOSYS)) |
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| 64 | # define xfs_rtunmount_inodes(m) |
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| 65 | |
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| 66 | static inline int |
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| 67 | xfs_growfs_check_rtgeom(const struct xfs_mount *mp, |
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| 68 | xfs_rfsblock_t dblocks, xfs_rfsblock_t rblocks, |
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| 69 | xfs_extlen_t rextsize) |
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| 70 | { |
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| 71 | return 0; |
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| 72 | } |
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| 73 | #endif /* CONFIG_XFS_RT */ |
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| 74 | |
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| 75 | int xfs_rtallocate_rtgs(struct xfs_trans *tp, xfs_fsblock_t bno_hint, |
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| 76 | xfs_rtxlen_t minlen, xfs_rtxlen_t maxlen, xfs_rtxlen_t prod, |
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| 77 | bool wasdel, bool initial_user_data, xfs_rtblock_t *bno, |
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| 78 | xfs_extlen_t *blen); |
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| 79 | |
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| 80 | #endif /* __XFS_RTALLOC_H__ */ |
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| 81 | |
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