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populate: support compressing metadumps

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If the test runner passed in a DUMP_COMPRESSOR program, make it so that
the metadumps we generate are also compressed.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
Darrick J. Wong
2021-03-08 20:39:22 -08:00
committed by Eryu Guan
parent 45b9734b98
commit b7860b30ce
2 changed files with 24 additions and 2 deletions
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README
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@@ -111,6 +111,11 @@ Preparing system for tests:
the module is the same as FSTYP.
- Set DUMP_CORRUPT_FS=1 to record metadata dumps of XFS
filesystems if a filesystem check fails.
- Set DUMP_COMPRESSOR to a compression program to compress
metadumps of filesystems. This program must accept '-f' and the
name of a file to compress; and it must accept '-d -f -k' and
the name of a file to decompress. In other words, it must
emulate gzip.
- or add a case to the switch in common/config assigning
these variables based on the hostname of your test