xfs: disable xfs_ioc_space for always COW inodes

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If we always have to write out of place preallocating blocks is
pointless.  We already check for this in the normal falloc path, but
the check was missig in the legacy ALLOCSP path.

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

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Christoph Hellwig 2019-10-24 22:26:27 -07:00 • committed by Darrick J. Wong

parent 837a6e7f5c

commit 7a42c70ea0

1 changed files with 4 additions and 0 deletions

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fs/xfs/xfs_ioctl.c

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