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xfs: create iterator error codes

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Currently, xfs doesn't have generic error codes defined for "stop
iterating"; we just reuse the XFS_BTREE_QUERY_* return values.  This
looks a little weird if we're not actually iterating a btree index.
Before we start adding more iterators, we should create general
XFS_ITER_{CONTINUE,ABORT} return values and define the XFS_BTREE_QUERY_*
ones from that.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
This commit is contained in:
Darrick J. Wong
2019-07-02 09:39:38 -07:00
parent 73d30d4874
commit 5bb46e3e18
6 changed files with 14 additions and 8 deletions
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2
fs/xfs/libxfs/xfs_alloc.c
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@@ -3137,7 +3137,7 @@ xfs_alloc_has_record(
/*
* Walk all the blocks in the AGFL. The @walk_fn can return any negative
* error code or XFS_BTREE_QUERY_RANGE_ABORT.
* error code or XFS_ITER_*.
*/
int
xfs_agfl_walk(