Fix jbd2-journal-chksum.patch

Fix jbd2-journal-chksum.patch

kunmap_atomic was passed the wrong argument.

 [  394.122353] Call Trace:
 [  394.128052]  [<c01051fa>] show_trace_log_lvl+0x1a/0x30
 [  394.138643]  [<c01052b9>] show_stack_log_lvl+0xa9/0xd0
 [  394.149239]  [<c01053aa>] show_registers+0xca/0x1c0
 [  394.159310]  [<c01055b6>] die+0x116/0x220
 [  394.167638]  [<c03ffc61>] do_trap+0x91/0xc0
 [  394.176321]  [<c01059a9>] do_invalid_op+0x89/0xa0
 [  394.185996]  [<c03ffa2a>] error_code+0x72/0x78
 [  394.195208]  [<c011dcff>] kmap_atomic+0x1f/0x30
 [  394.204613]  [<c01fe63e>] jbd2_journal_commit_transaction+0x132e/0x15a0
 [  394.218206]  [<c0202e51>] kjournald2+0xd1/0x3b0
 [  394.227590]  [<c013d092>] kthread+0x42/0x70
 [  394.236298]  [<c0104df3>] kernel_thread_helper+0x7/0x14

Fixed by: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>