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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-08-03 11:10:21 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-08-03 11:10:21 +1000 |
| commit | 105f7d83db4f82ce170893eaaca946754e38541f (patch) | |
| tree | 84975f57ee805392ba98180a075993afc1e65ece /fs/xfs/xfs_trace.h | |
| parent | 2c813ad66a7218a64db68f0a4bfa8d2d9caef4c0 (diff) | |
| download | linux-105f7d83db4f82ce170893eaaca946754e38541f.tar.bz2 | |
xfs: introduce interval queries on btrees
Create a function to enable querying of btree records mapping to a
range of keys. This will be used in subsequent patches to allow
querying the reverse mapping btree to find the extents mapped to a
range of physical blocks, though the generic code can be used for
any range query.
The overlapped query range function needs to use the btree get_block
helper because the root block could be an inode, in which case
bc_bufs[nlevels-1] will be NULL.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_trace.h')
| -rw-r--r-- | fs/xfs/xfs_trace.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index 8fb59e644f80..a5862680db31 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -2220,6 +2220,7 @@ DEFINE_EVENT(xfs_btree_cur_class, name, \ TP_PROTO(struct xfs_btree_cur *cur, int level, struct xfs_buf *bp), \ TP_ARGS(cur, level, bp)) DEFINE_BTREE_CUR_EVENT(xfs_btree_updkeys); +DEFINE_BTREE_CUR_EVENT(xfs_btree_overlapped_query_range); #endif /* _TRACE_XFS_H */ |