Commit 22cfefb5 authored Feb 05, 2007 by Andrew Morton Committed by James Bottomley Feb 07, 2007

[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>

parent 44746438

drivers/scsi/scsi_lib.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -2250,6 +2250,8 @@ void scsi_kmap_atomic_sg(struct scatterlist sg, int sg_count,
		size_t sg_len = 0, len_complete = 0;
		struct page *page;

		WARN_ON(!irqs_disabled());

		for (i = 0; i < sg_count; i++) {
		len_complete = sg_len; /* Complete sg-entries */
		sg_len += sg[i].length;