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