6eb73b0046
The HAVE_BIO_RW_* #ifdef's must appear before REQ_* #ifdef's in the bio_is_flush() and bio_is_discard() macros. Linux 2.6.32 era kernels defined both of values and the HAVE_BIO_RW_* must be used in this case. This resulted in a panic in zconfig test 5. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Closes #4951 Closes #4959