File 0094-Grow-don-t-allow-array-geometry-change-with-ppl-enab.patch of Package mdadm.8578

From b208f817ec538e56df7280f0353e6bda532b9432 Mon Sep 17 00:00:00 2001
From: Tomasz Majchrzak <tomasz.majchrzak@intel.com>
Date: Thu, 8 Jun 2017 16:05:51 +0200
Subject: [PATCH] Grow: don't allow array geometry change with ppl enabled

Don't allow array geometry change (size expand, disk adding) when PPL
consistency policy is enabled. Current PPL implementation doesn't work when
reshape is taking place.

Signed-off-by: Tomasz Majchrzak <tomasz.majchrzak@intel.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
---
 Grow.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Grow.c b/Grow.c
index 4ecb1d8..f7325cb 100644
--- a/Grow.c
+++ b/Grow.c
@@ -1880,6 +1880,13 @@ int Grow_reshape(char *devname, int fd,
 					free(subarray);
 					return 1;
 				}
+				if (content->consistency_policy ==
+				    CONSISTENCY_POLICY_PPL) {
+					pr_err("Operation not supported when ppl consistency policy is enabled\n");
+					sysfs_free(cc);
+					free(subarray);
+					return 1;
+				}
 			}
 			sysfs_free(cc);
 		}
-- 
2.12.0