Exemplos de ISUNWRITTEN em C++ (Cpp)

Exemplo n.º 1

Arquivo: xfs_iomap.c Projeto: xiandaicxsj/copyKvm

STATIC int
xfs_imap_to_bmap(
	xfs_iocore_t	*io,
	xfs_off_t	offset,
	xfs_bmbt_irec_t *imap,
	xfs_iomap_t	*iomapp,
	int		imaps,			/* Number of imap entries */
	int		iomaps,			/* Number of iomap entries */
	int		flags)
{
	xfs_mount_t	*mp;
	xfs_fsize_t	nisize;
	int		pbm;
	xfs_fsblock_t	start_block;

	mp = io->io_mount;
	nisize = XFS_SIZE(mp, io);
	if (io->io_new_size > nisize)
		nisize = io->io_new_size;

	for (pbm = 0; imaps && pbm < iomaps; imaps--, iomapp++, imap++, pbm++) {
		iomapp->iomap_offset = XFS_FSB_TO_B(mp, imap->br_startoff);
		iomapp->iomap_delta = offset - iomapp->iomap_offset;
		iomapp->iomap_bsize = XFS_FSB_TO_B(mp, imap->br_blockcount);
		iomapp->iomap_flags = flags;

		if (io->io_flags & XFS_IOCORE_RT) {
			iomapp->iomap_flags |= IOMAP_REALTIME;
			iomapp->iomap_target = mp->m_rtdev_targp;
		} else {
			iomapp->iomap_target = mp->m_ddev_targp;
		}
		start_block = imap->br_startblock;
		if (start_block == HOLESTARTBLOCK) {
			iomapp->iomap_bn = IOMAP_DADDR_NULL;
			iomapp->iomap_flags |= IOMAP_HOLE;
		} else if (start_block == DELAYSTARTBLOCK) {
			iomapp->iomap_bn = IOMAP_DADDR_NULL;
			iomapp->iomap_flags |= IOMAP_DELAY;
		} else {
			iomapp->iomap_bn = XFS_FSB_TO_DB_IO(io, start_block);
			if (ISUNWRITTEN(imap))
				iomapp->iomap_flags |= IOMAP_UNWRITTEN;
		}

		if ((iomapp->iomap_offset + iomapp->iomap_bsize) >= nisize) {
			iomapp->iomap_flags |= IOMAP_EOF;
		}

		offset += iomapp->iomap_bsize - iomapp->iomap_delta;
	}
	return pbm;	/* Return the number filled */
}

Exemplo n.º 2

Arquivo: xfs_iomap.c Projeto: ArthySundaram/firstrepo

STATIC int
xfs_imap_to_bmap(
	xfs_inode_t	*ip,
	xfs_off_t	offset,
	xfs_bmbt_irec_t *imap,
	xfs_iomap_t	*iomapp,
	int		imaps,			/* Number of imap entries */
	int		iomaps,			/* Number of iomap entries */
	int		flags)
{
	xfs_mount_t	*mp = ip->i_mount;
	int		pbm;
	xfs_fsblock_t	start_block;


	for (pbm = 0; imaps && pbm < iomaps; imaps--, iomapp++, imap++, pbm++) {
		iomapp->iomap_offset = XFS_FSB_TO_B(mp, imap->br_startoff);
		iomapp->iomap_delta = offset - iomapp->iomap_offset;
		iomapp->iomap_bsize = XFS_FSB_TO_B(mp, imap->br_blockcount);
		iomapp->iomap_flags = flags;

		if (XFS_IS_REALTIME_INODE(ip)) {
			iomapp->iomap_flags |= IOMAP_REALTIME;
			iomapp->iomap_target = mp->m_rtdev_targp;
		} else {
			iomapp->iomap_target = mp->m_ddev_targp;
		}
		start_block = imap->br_startblock;
		if (start_block == HOLESTARTBLOCK) {
			iomapp->iomap_bn = IOMAP_DADDR_NULL;
			iomapp->iomap_flags |= IOMAP_HOLE;
		} else if (start_block == DELAYSTARTBLOCK) {
			iomapp->iomap_bn = IOMAP_DADDR_NULL;
			iomapp->iomap_flags |= IOMAP_DELAY;
		} else {
			iomapp->iomap_bn = xfs_fsb_to_db(ip, start_block);
			if (ISUNWRITTEN(imap))
				iomapp->iomap_flags |= IOMAP_UNWRITTEN;
		}

		offset += iomapp->iomap_bsize - iomapp->iomap_delta;
	}
	return pbm;	/* Return the number filled */
}