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Date: Sun, 13 Jul 2008 01:29:58 +0200 From: "Jakub W. Jozwicki" <jozwicki@...er.pl> To: linux-kernel@...r.kernel.org Subject: [PATCH 2.6.25.10 2/2] libata: fix locking for kmap_atomic Change locking surrounding kmap_atomic from local_irqsave to local_irqsave_nort. This fixes issues with PREEMPT_RT. Signed-off-by: Jakub Jozwicki <jozwicki@...er.pl> --- 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; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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