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xfstests: add _require_sparse_files

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Add a helper to check if the filesystem supports sparse files.  This is
used to guard tests that exercise sparse file functionality and would
take forever on filesystems that have to zero all blocks on extending
truncates.

Unfortunately there's no good way to autodetect this functionality, so
just implement it as a blacklist for now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Christoph Hellwig
2010-11-09 14:53:36 +01:00
parent 3d3893eef9
commit 77fe563a78
6 changed files with 27 additions and 2 deletions
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@@ -45,6 +45,8 @@ _cleanup()
_supported_fs generic
_supported_os Linux
_require_sparse_files
AIO_TEST=src/aio-dio-regress/aio-dio-hole-filling-race
[ -x $AIO_TEST ] || _notrun "$AIO_TEST not built"