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xfs: introduce refcount btree definitions

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Add new per-AG refcount btree definitions to the per-AG structures.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2016-10-03 09:11:16 -07:00
parent c75c752d03
commit 46eeb521b9
11 changed files with 93 additions and 10 deletions
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7
fs/xfs/xfs_pnfs.c
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@ -113,6 +113,13 @@ xfs_fs_map_blocks(
if (XFS_IS_REALTIME_INODE(ip))
return -ENXIO;
/*
* The pNFS block layout spec actually supports reflink like
* functionality, but the Linux pNFS server doesn't implement it yet.
*/
if (xfs_is_reflink_inode(ip))
return -ENXIO;
/*
* Lock out any other I/O before we flush and invalidate the pagecache,
* and then hand out a layout to the remote system. This is very