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Stefan Behrens
e15d36e67c
Josef noticed that using /dev/zero to generate most of the test data doesn't work if someone overrides the mount options to enable compression. The test that performs a cancellation failed because the replace operation was already finished when the cancel request was executed. Since /dev/urandom is too slow to generate multiple GB, the way how the filesystem data is generated is completely changed with this patch. Now /dev/urandom is used to generate one 1MB file and this file is copied up to 2048 times. /dev/zero is no longer used. The runtime of the test is about the same as before. Compression works now, online duplication will again cause issues, but we don't have online duplication today. Reported-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> Reviewed-by: Jan Schmidt <list.xfs@jan-o-sch.net> Signed-off-by: Rich Johnston <rjohnston@sgi.com>