diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2022-07-14 11:15:06 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2022-11-09 19:07:47 -0800 |
| commit | 78f18d84ea69d309646491dcf338edae163b5969 (patch) | |
| tree | b7fae588e4f7786f88f55038fa44524f44ff895c /fs/xfs/libxfs/xfs_imeta.h | |
| parent | f52035dafb3809439edaa2a0d4d5bdfe87869be3 (diff) | |
xfs: create imeta abstractions to get and set metadata inodes
Create some helper routines to get and set metadata inode numbers
instead of open-coding them throughout xfs.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/libxfs/xfs_imeta.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_imeta.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_imeta.h b/fs/xfs/libxfs/xfs_imeta.h new file mode 100644 index 000000000000..b535e19ff1a0 --- /dev/null +++ b/fs/xfs/libxfs/xfs_imeta.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2022 Oracle. All Rights Reserved. + * Author: Darrick J. Wong <djwong@kernel.org> + */ +#ifndef __XFS_IMETA_H__ +#define __XFS_IMETA_H__ + +/* Key for looking up metadata inodes. */ +struct xfs_imeta_path { + /* Temporary: integer to keep the static imeta definitions unique */ + int bogus; +}; + +/* Cleanup widget for metadata inode creation and deletion. */ +struct xfs_imeta_update { + /* empty for now */ +}; + +/* Lookup keys for static metadata inodes. */ +extern const struct xfs_imeta_path XFS_IMETA_RTBITMAP; +extern const struct xfs_imeta_path XFS_IMETA_RTSUMMARY; +extern const struct xfs_imeta_path XFS_IMETA_USRQUOTA; +extern const struct xfs_imeta_path XFS_IMETA_GRPQUOTA; +extern const struct xfs_imeta_path XFS_IMETA_PRJQUOTA; + +int xfs_imeta_lookup(struct xfs_mount *mp, const struct xfs_imeta_path *path, + xfs_ino_t *ino); + +/* Don't allocate quota for this file. */ +#define XFS_IMETA_CREATE_NOQUOTA (1 << 0) +int xfs_imeta_create(struct xfs_trans **tpp, const struct xfs_imeta_path *path, + umode_t mode, unsigned int flags, struct xfs_inode **ipp, + struct xfs_imeta_update *upd); +int xfs_imeta_unlink(struct xfs_trans **tpp, const struct xfs_imeta_path *path, + struct xfs_inode *ip, struct xfs_imeta_update *upd); +int xfs_imeta_link(struct xfs_trans *tp, const struct xfs_imeta_path *path, + struct xfs_inode *ip, struct xfs_imeta_update *upd); +void xfs_imeta_end_update(struct xfs_mount *mp, struct xfs_imeta_update *upd, + int error); +int xfs_imeta_start_update(struct xfs_mount *mp, + const struct xfs_imeta_path *path, + struct xfs_imeta_update *upd); + +bool xfs_is_static_meta_ino(struct xfs_mount *mp, xfs_ino_t ino); +int xfs_imeta_mount(struct xfs_mount *mp); + +#endif /* __XFS_IMETA_H__ */ |