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xfs: allow CoW remap transactions to use reserve blocks

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Since we as yet have no way of holding on to the indlen blocks that are
reserved as part of CoW fork delalloc reservations, let the CoW remap
transaction dip into the reserves so that we avoid failing writes.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2017-12-10 18:03:56 -08:00
parent 9d40fba8b2
commit a192de265b
1 changed files with 1 additions and 1 deletions
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2
fs/xfs/xfs_reflink.c
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@ -729,7 +729,7 @@ xfs_reflink_end_cow(
(unsigned int)(end_fsb - offset_fsb),
XFS_DATA_FORK);
error = xfs_trans_alloc(ip->i_mount, &M_RES(ip->i_mount)->tr_write,
resblks, 0, 0, &tp);
resblks, 0, XFS_TRANS_RESERVE, &tp);
if (error)
goto out;