From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Thu, 3 Sep 2015 09:57:56 +0000 (+0200)
Subject: s390/numa: write kernel message when emu_size has been increased
X-Git-Tag: v4.14-rc1~4433^2~65
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b02064a9b8134e1aac4e891abf72139ca0b126ee;p=platform%2Fkernel%2Flinux-rpi.git

s390/numa: write kernel message when emu_size has been increased

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

diff --git a/arch/s390/numa/mode_emu.c b/arch/s390/numa/mode_emu.c
index 30b2698a..828d069 100644
--- a/arch/s390/numa/mode_emu.c
+++ b/arch/s390/numa/mode_emu.c
@@ -436,9 +436,15 @@ static void emu_update_cpu_topology(void)
  */
 static unsigned long emu_setup_size_adjust(unsigned long size)
 {
+	unsigned long size_new;
+
 	size = size ? : CONFIG_EMU_SIZE;
-	size = roundup(size, memory_block_size_bytes());
-	return size;
+	size_new = roundup(size, memory_block_size_bytes());
+	if (size_new == size)
+		return size;
+	pr_warn("Increasing memory stripe size from %ld MB to %ld MB\n",
+		size >> 20, size_new >> 20);
+	return size_new;
 }
 
 /*