From: Christof Schmitt <christof.schmitt@de.ibm.com>
Date: Mon, 25 Oct 2010 14:10:10 +0000 (+0200)
Subject: [S390] set ARCH_HAS_SG_CHAIN for s390
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=87799ebab760dd1460f6e4193d4f71ba416d1451;p=deliverable%2Flinux.git

[S390] set ARCH_HAS_SG_CHAIN for s390

Set ARCH_HAS_SG_CHAIN for scatter lists on s390. Without this flag the
SCSI code limits the maximum number of segments, so set it to make
proper use of the FCP channel hardware.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

diff --git a/arch/s390/include/asm/scatterlist.h b/arch/s390/include/asm/scatterlist.h
index 35d786fe93ae..6d45ef6c12a7 100644
--- a/arch/s390/include/asm/scatterlist.h
+++ b/arch/s390/include/asm/scatterlist.h
@@ -1 +1,3 @@
 #include <asm-generic/scatterlist.h>
+
+#define ARCH_HAS_SG_CHAIN