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Eric Whitney
2e9061fb91
Generic/300 fails when run on a test filesystem that does not support fallocate(). It uses fio's falloc ioengine to generate part of its I/O load and both allocates blocks and punches holes. This causes EOPNOTSUPP failures when the test is run on indirect block-mapped ext4 filesystems or pre-3.14 ext4 filesystems created with bigalloc. Verify that the test filesystem supports fallocate() before proceeding with the test, checking for both block allocation and hole punching capabilities. Also, delete any pre-existing test output. Signed-off-by: Eric Whitney <enwlinux@gmail.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>