commit 922a58292fafa4efcfcd44fbc46b0665681c955a
Author: Tomasz Majchrzak <tomasz.majchrzak@intel.com>
Date:   Fri Jun 9 16:20:19 2017 +0200

    Grow: don't allow to enable PPL when reshape is in progress
    
    Don't allow to enable PPL consistency policy when reshape is in progress.
    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 f7325cb..b1cb306 100644
--- a/Grow.c
+++ b/Grow.c
@@ -530,6 +530,7 @@ int Grow_consistency_policy(char *devname, int fd, struct context *c, struct sha
 	char *subarray = NULL;
 	int ret = 0;
 	char container_dev[PATH_MAX];
+	char buf[20];
 
 	if (s->consistency_policy != CONSISTENCY_POLICY_RESYNC &&
 	    s->consistency_policy != CONSISTENCY_POLICY_PPL) {
@@ -577,6 +578,17 @@ int Grow_consistency_policy(char *devname, int fd, struct context *c, struct sha
 		goto free_info;
 	}
 
+	if (s->consistency_policy == CONSISTENCY_POLICY_PPL) {
+		if (sysfs_get_str(sra, NULL, "sync_action", buf, 20) <= 0) {
+			ret = 1;
+			goto free_info;
+		} else if (strcmp(buf, "reshape\n") == 0) {
+			pr_err("PPL cannot be enabled when reshape is in progress\n");
+			ret = 1;
+			goto free_info;
+		}
+	}
+
 	if (subarray) {
 		char *update;