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[SCSI] ipr: Rate limit DMA mapping errors 

I noticed a stream of errors from the IPR driver while doing
IOMMU fault injection. Rate limit the errors so we don't clog
up the console and logfiles.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Anton Blanchard 2011-05-09 10:07:40 +10:00 committed by James Bottomley
parent fda38518f2
commit 51f52a4752
1 changed files with 2 additions and 1 deletions
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3
drivers/scsi/ipr.c
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@ -5200,7 +5200,8 @@ static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
nseg = scsi_dma_map(scsi_cmd);
if (nseg < 0) {
dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
if (printk_ratelimit())
dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
return -1;
}