1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright (c) 2018-2024 Oracle. All Rights Reserved. 4 * Author: Darrick J. Wong <djwong@kernel.org> 5 */ 6 #ifndef __XFS_METAFILE_H__ 7 #define __XFS_METAFILE_H__ 8 9 const char *xfs_metafile_type_str(enum xfs_metafile_type metatype); 10 11 /* All metadata files must have these flags set. */ 12 #define XFS_METAFILE_DIFLAGS (XFS_DIFLAG_IMMUTABLE | \ 13 XFS_DIFLAG_SYNC | \ 14 XFS_DIFLAG_NOATIME | \ 15 XFS_DIFLAG_NODUMP | \ 16 XFS_DIFLAG_NODEFRAG) 17 18 /* All metadata directories must have these flags set. */ 19 #define XFS_METADIR_DIFLAGS (XFS_METAFILE_DIFLAGS | \ 20 XFS_DIFLAG_NOSYMLINKS) 21 22 void xfs_metafile_set_iflag(struct xfs_trans *tp, struct xfs_inode *ip, 23 enum xfs_metafile_type metafile_type); 24 void xfs_metafile_clear_iflag(struct xfs_trans *tp, struct xfs_inode *ip); 25 26 /* Space reservations for metadata inodes. */ 27 struct xfs_alloc_arg; 28 29 bool xfs_metafile_resv_critical(struct xfs_inode *ip); 30 void xfs_metafile_resv_alloc_space(struct xfs_inode *ip, 31 struct xfs_alloc_arg *args); 32 void xfs_metafile_resv_free_space(struct xfs_inode *ip, struct xfs_trans *tp, 33 xfs_filblks_t len); 34 void xfs_metafile_resv_free(struct xfs_inode *ip); 35 int xfs_metafile_resv_init(struct xfs_inode *ip, xfs_filblks_t ask); 36 37 /* Code specific to kernel/userspace; must be provided externally. */ 38 39 int xfs_trans_metafile_iget(struct xfs_trans *tp, xfs_ino_t ino, 40 enum xfs_metafile_type metafile_type, struct xfs_inode **ipp); 41 int xfs_metafile_iget(struct xfs_mount *mp, xfs_ino_t ino, 42 enum xfs_metafile_type metafile_type, struct xfs_inode **ipp); 43 44 #endif /* __XFS_METAFILE_H__ */ 45