tree 62b863d4de68d47af16edcfac1e2a5fa0b2f437f
parent 84d6961910ea7b3ae8d8338f5b4df25dea68cee9
author Darrick J. Wong <darrick.wong@oracle.com> 1475511105 -0700
committer Darrick J. Wong <darrick.wong@oracle.com> 1475709987 -0700

xfs: don't allow reflink when the AG is low on space

If the AG free space is down to the reserves, refuse to reflink our
way out of space.  Hopefully userspace will make a real copy and/or go
elsewhere.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>