diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_inode_buf.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_buf.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_inode_buf.h b/fs/xfs/libxfs/xfs_inode_buf.h new file mode 100644 index 000000000..ab0f84165 --- /dev/null +++ b/fs/xfs/libxfs/xfs_inode_buf.h @@ -0,0 +1,81 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. + * All Rights Reserved. + */ +#ifndef __XFS_INODE_BUF_H__ +#define __XFS_INODE_BUF_H__ + +struct xfs_inode; +struct xfs_dinode; + +/* + * In memory representation of the XFS inode. This is held in the in-core struct + * xfs_inode and represents the current on disk values but the structure is not + * in on-disk format. That is, this structure is always translated to on-disk + * format specific structures at the appropriate time. + */ +struct xfs_icdinode { + int8_t di_version; /* inode version */ + int8_t di_format; /* format of di_c data */ + uint16_t di_flushiter; /* incremented on flush */ + uint32_t di_uid; /* owner's user id */ + uint32_t di_gid; /* owner's group id */ + uint16_t di_projid_lo; /* lower part of owner's project id */ + uint16_t di_projid_hi; /* higher part of owner's project id */ + xfs_fsize_t di_size; /* number of bytes in file */ + xfs_rfsblock_t di_nblocks; /* # of direct & btree blocks used */ + xfs_extlen_t di_extsize; /* basic/minimum extent size for file */ + xfs_extnum_t di_nextents; /* number of extents in data fork */ + xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/ + uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */ + int8_t di_aformat; /* format of attr fork's data */ + uint32_t di_dmevmask; /* DMIG event mask */ + uint16_t di_dmstate; /* DMIG state info */ + uint16_t di_flags; /* random flags, XFS_DIFLAG_... */ + + uint64_t di_flags2; /* more random flags */ + uint32_t di_cowextsize; /* basic cow extent size for file */ + + xfs_ictimestamp_t di_crtime; /* time created */ +}; + +/* + * Inode location information. Stored in the inode and passed to + * xfs_imap_to_bp() to get a buffer and dinode for a given inode. + */ +struct xfs_imap { + xfs_daddr_t im_blkno; /* starting BB of inode chunk */ + unsigned short im_len; /* length in BBs of inode chunk */ + unsigned short im_boffset; /* inode offset in block in bytes */ +}; + +int xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *, + struct xfs_imap *, struct xfs_dinode **, + struct xfs_buf **, uint, uint); +int xfs_iread(struct xfs_mount *, struct xfs_trans *, + struct xfs_inode *, uint); +void xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *); +void xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to, + xfs_lsn_t lsn); +void xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from); +void xfs_log_dinode_to_disk(struct xfs_log_dinode *from, + struct xfs_dinode *to); + +bool xfs_dinode_good_version(struct xfs_mount *mp, __u8 version); + +#if defined(DEBUG) +void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *); +#else +#define xfs_inobp_check(mp, bp) +#endif /* DEBUG */ + +xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino, + struct xfs_dinode *dip); +xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp, + uint32_t extsize, uint16_t mode, uint16_t flags); +xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp, + uint32_t cowextsize, uint16_t mode, uint16_t flags, + uint64_t flags2); + +#endif /* __XFS_INODE_BUF_H__ */ |