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| author | Darrick J. Wong <[email protected]> | 2018-10-29 23:47:06 +0000 |
|---|---|---|
| committer | Dave Chinner <[email protected]> | 2018-10-29 23:47:06 +0000 |
| commit | 3f68c1f562f1e4c5e1a515b392a2e0a509a342d5 (patch) | |
| tree | 0514695ce6f460cc00d532e88438c14af1431594 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | xfs: clean up xfs_reflink_remap_blocks call site (diff) | |
| download | kernel-3f68c1f562f1e4c5e1a515b392a2e0a509a342d5.tar.gz kernel-3f68c1f562f1e4c5e1a515b392a2e0a509a342d5.zip | |
xfs: support returning partial reflink results
Back when the XFS reflink code only supported clone_file_range, we were
only able to return zero or negative error codes to userspace. However,
now that copy_file_range (which returns bytes copied) can use XFS'
clone_file_range, we have the opportunity to return partial results.
For example, if userspace sends a 1GB clone request and we run out of
space halfway through, we at least can tell userspace that we completed
512M of that request like a regular write.
Signed-off-by: Darrick J. Wong <[email protected]>
Reviewed-by: Dave Chinner <[email protected]>
Signed-off-by: Dave Chinner <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions