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[S390] set ARCH_HAS_SG_CHAIN for s390
authorChristof Schmitt <christof.schmitt@de.ibm.com>
Mon, 25 Oct 2010 14:10:10 +0000 (16:10 +0200)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Mon, 25 Oct 2010 14:10:15 +0000 (16:10 +0200)
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>
arch/s390/include/asm/scatterlist.h patch | blob | history

diff --git a/arch/s390/include/asm/scatterlist.h b/arch/s390/include/asm/scatterlist.h
index 35d786fe93ae0dcba7e1cf434606e9e61d1b05c2..6d45ef6c12a73e23f2930bbbb816c30fa7f16a6f 100644 (file)
--- 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
Linux kernel for KaRo TX COM modules