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[SCSI] scsi_kmap_atomic_sg(): check that local irqs are disabled
The KM_BIO_SRC_IRQ kmap slot must be taken with local irqs disabled. Add a check into scsi for this. Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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@ -2250,6 +2250,8 @@ void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count,
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size_t sg_len = 0, len_complete = 0;
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struct page *page;
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WARN_ON(!irqs_disabled());
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for (i = 0; i < sg_count; i++) {
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len_complete = sg_len; /* Complete sg-entries */
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sg_len += sg[i].length;
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