C++ (Cpp) xfs_inode_to_disk Examples

Example #1

File: inode.c Project: guribe94/linux

/* Scrub an inode. */
int
xchk_inode(
	struct xfs_scrub	*sc)
{
	struct xfs_dinode	di;
	int			error = 0;

	/*
	 * If sc->ip is NULL, that means that the setup function called
	 * xfs_iget to look up the inode.  xfs_iget returned a EFSCORRUPTED
	 * and a NULL inode, so flag the corruption error and return.
	 */
	if (!sc->ip) {
		xchk_ino_set_corrupt(sc, sc->sm->sm_ino);
		return 0;
	}

	/* Scrub the inode core. */
	xfs_inode_to_disk(sc->ip, &di, 0);
	xchk_dinode(sc, &di, sc->ip->i_ino);
	if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
		goto out;

	/*
	 * Look for discrepancies between file's data blocks and the reflink
	 * iflag.  We already checked the iflag against the file mode when
	 * we scrubbed the dinode.
	 */
	if (S_ISREG(VFS_I(sc->ip)->i_mode))
		xchk_inode_check_reflink_iflag(sc, sc->ip->i_ino);

	xchk_inode_xref(sc, sc->ip->i_ino, &di);
out:
	return error;
}

Example #2

File: util.c Project: djwong/xfsprogs

/*
 * Writes a modified inode's changes out to the inode's on disk home.
 * Originally based on xfs_iflush_int() from xfs_inode.c in the kernel.
 */
int
libxfs_iflush_int(xfs_inode_t *ip, xfs_buf_t *bp)
{
	xfs_inode_log_item_t	*iip;
	xfs_dinode_t		*dip;
	xfs_mount_t		*mp;

	ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
	ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
		ip->i_d.di_nextents > ip->i_df.if_ext_max);
	ASSERT(ip->i_d.di_version > 1);

	iip = ip->i_itemp;
	mp = ip->i_mount;

	/* set *dip = inode's place in the buffer */
	dip = xfs_buf_offset(bp, ip->i_imap.im_boffset);

	ASSERT(ip->i_d.di_magic == XFS_DINODE_MAGIC);
	if (XFS_ISREG(ip)) {
		ASSERT( (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS) ||
			(ip->i_d.di_format == XFS_DINODE_FMT_BTREE) );
	} else if (XFS_ISDIR(ip)) {
		ASSERT( (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS) ||
			(ip->i_d.di_format == XFS_DINODE_FMT_BTREE)   ||
			(ip->i_d.di_format == XFS_DINODE_FMT_LOCAL) );
	}
	ASSERT(ip->i_d.di_nextents+ip->i_d.di_anextents <= ip->i_d.di_nblocks);
	ASSERT(ip->i_d.di_forkoff <= mp->m_sb.sb_inodesize);

	/* bump the change count on v3 inodes */
	if (ip->i_d.di_version == 3)
		VFS_I(ip)->i_version++;

	/*
	 * Copy the dirty parts of the inode into the on-disk
	 * inode.  We always copy out the core of the inode,
	 * because if the inode is dirty at all the core must
	 * be.
	 */
	xfs_inode_to_disk(ip, dip, iip->ili_item.li_lsn);

	xfs_iflush_fork(ip, dip, iip, XFS_DATA_FORK);
	if (XFS_IFORK_Q(ip))
		xfs_iflush_fork(ip, dip, iip, XFS_ATTR_FORK);

	/* generate the checksum. */
	xfs_dinode_calc_crc(mp, dip);

	return 0;
}