From 979dca3826841e5dc9170c28f20bd75ece266a9a Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@xenotime.net>
Date: Fri, 19 May 2006 11:55:58 -0700
Subject: [PATCH] [SCSI] imm: no need for unchecked_isa_dma
Relax the lowmem bounce buffer requirement for imm so that any
low memory page will do -- they don't need to be below the
ISA 16 MB limit, just need to be mapped in low memory.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
drivers/scsi/imm.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c
index fc0f30ae0f77fc..cd2dffdab77a49 100644
--- a/drivers/scsi/imm.c
+++ b/drivers/scsi/imm.c
@@ -1119,6 +1119,10 @@ static int device_check(imm_struct *dev)
return -ENODEV;
}
+/*
+ * imm cannot deal with highmem, so this causes all IO pages for this host
+ * to reside in low memory (hence mapped)
+ */
static int imm_adjust_queue(struct scsi_device *device)
{
blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH);
@@ -1141,10 +1145,6 @@ static struct scsi_host_template imm_template = {
.use_clustering = ENABLE_CLUSTERING,
.can_queue = 1,
.slave_alloc = imm_adjust_queue,
- .unchecked_isa_dma = 1, /* imm cannot deal with highmem, so
- * this is an easy trick to ensure
- * all io pages for this host reside
- * in low memory */
};
/***************************************************************************
--
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