xfs: simulate per-AG reservations being critically low

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Create an error injection point that enables us to simulate being
critically low on per-AG block reservations.  This should enable us to
simulate this specific ENOSPC condition so that we can test falling back
to a regular file copy.

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

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Darrick J. Wong 2016-10-03 09:11:51 -07:00

parent 4f435ebe7d

commit a35eb41519

2 changed files with 6 additions and 2 deletions

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4

fs/xfs/libxfs/xfs_ag_resv.c

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4

fs/xfs/xfs_error.h

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