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Commit 3a0086a8 authored by Salyzyn, Mark's avatar Salyzyn, Mark Committed by James Bottomley
Browse files

[SCSI] aacraid: add call to flush_kernel_dcache_page 



Some architectures require a call to flush_kernel_dcache_page for
processor spoofed DMA operations.

Signed-off-by: default avatarMark Salyzyn <aacraid@adaptec.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent 984621b4

drivers/scsi/aacraid/aachba.c

+2 −1
Original line number Diff line number Diff line
@@ -31,9 +31,9 @@ 
#include <linux/slab.h>

#include <linux/completion.h>

#include <linux/blkdev.h>

#include <linux/dma-mapping.h>

#include <asm/semaphore.h>

#include <asm/uaccess.h>

#include <linux/highmem.h> /* For flush_kernel_dcache_page */



#include <scsi/scsi.h>

#include <scsi/scsi_cmnd.h>
@@ -366,6 +366,7 @@ static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigne 
	if (buf && transfer_len > 0)

		memcpy(buf + offset, data, transfer_len);



	flush_kernel_dcache_page(kmap_atomic_to_page(buf - sg->offset));

	kunmap_atomic(buf - sg->offset, KM_IRQ0);



}