Change locking surrounding kmap_atomic from local_irqsave to
local_irqsave_nort. This fixes issues with PREEMPT_RT.

Signed-off-by: Jakub Jozwicki

--- linux-2.6.25.10/drivers/ata/libata-scsi.c 2008-07-03 05:46:47.000000000
+0200
+++ linux-2.6.25.10-rt7/drivers/ata/libata-scsi.c 2008-07-13
00:47:51.128016829 +0200
@@ -1705,14 +1705,14 @@
struct scsi_cmnd *cmd = args->cmd;
unsigned long flags;

- local_irq_save(flags);
+ local_irq_save_nort(flags);

buflen = ata_scsi_rbuf_get(cmd, &rbuf);
memset(rbuf, 0, buflen);
rc = actor(args, rbuf, buflen);
ata_scsi_rbuf_put(cmd, rbuf);

- local_irq_restore(flags);
+ local_irq_restore_nort(flags);

if (rc == 0)
cmd->result = SAM_STAT_GOOD;
@@ -2489,7 +2489,7 @@
unsigned int buflen;
unsigned long flags;

- local_irq_save(flags);
+ local_irq_save_nort(flags);

buflen = ata_scsi_rbuf_get(cmd, &buf);

@@ -2508,7 +2508,7 @@

ata_scsi_rbuf_put(cmd, buf);

- local_irq_restore(flags);
+ local_irq_restore_nort(flags);
}

cmd->result = SAM_STAT_GOOD;
--
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