commit b208f817ec538e56df7280f0353e6bda532b9432
Author: Tomasz Majchrzak <tomasz.majchrzak@intel.com>
Date:   Thu Jun 8 16:05:51 2017 +0200

    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>

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);
 		}