diff options
Diffstat (limited to 'fs/xfs/xfs_fsrefs.h')
| -rw-r--r-- | fs/xfs/xfs_fsrefs.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/fs/xfs/xfs_fsrefs.h b/fs/xfs/xfs_fsrefs.h new file mode 100644 index 000000000000..fa74e1a84d92 --- /dev/null +++ b/fs/xfs/xfs_fsrefs.h @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2022 Oracle. All Rights Reserved. + * Author: Darrick J. Wong <djwong@kernel.org> + */ +#ifndef __XFS_FSREFS_H__ +#define __XFS_FSREFS_H__ + +struct fsrefs; + +/* internal fsrefs representation */ +struct xfs_fsrefs { + dev_t fcr_device; /* device id */ + uint32_t fcr_flags; /* mapping flags */ + uint64_t fcr_physical; /* device offset of segment */ + uint64_t fcr_owners; /* number of owners */ + xfs_filblks_t fcr_length; /* length of segment, blocks */ +}; + +struct xfs_fsrefs_head { + uint32_t fch_iflags; /* control flags */ + uint32_t fch_oflags; /* output flags */ + unsigned int fch_count; /* # of entries in array incl. input */ + unsigned int fch_entries; /* # of entries filled in (output). */ + + struct xfs_fsrefs fch_keys[2]; /* low and high keys */ +}; + +void xfs_fsrefs_to_internal(struct xfs_fsrefs *dest, struct fsrefs *src); + +int xfs_getfsrefs(struct xfs_mount *mp, struct xfs_fsrefs_head *head, + struct fsrefs *out_recs); + +#endif /* __XFS_FSREFS_H__ */ |