tree c26c8192713b02cc7a96a4094dcf896395cc7f81
parent 1a1a3e97bad42e92cd2f32e81c396c8ee0bddb28
author Arkadiusz Mi?kiewicz <arekm@maven.pl> 1285481418 +0000
committer Alex Elder <aelder@sgi.com> 1287432488 -0500

xfs: Extend project quotas to support 32bit project ids

This patch adds support for 32bit project quota identifiers.

On disk format is backward compatible with 16bit projid numbers. projid
on disk is now kept in two 16bit values - di_projid_lo (which holds the
same position as old 16bit projid value) and new di_projid_hi (takes
existing padding) and converts from/to 32bit value on the fly.

xfs_admin (for existing fs), mkfs.xfs (for new fs) needs to be used
to enable PROJID32BIT support.

Signed-off-by: Arkadiusz Miśkiewicz <arekm@maven.pl>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>