From: Tomasz Majchrzak <tomasz.majchrzak@intel.com>
Date: Thu, 8 Jun 2017 14:05:51 +0000 (+0200)
Subject: Grow: don't allow array geometry change with ppl enabled
X-Git-Tag: mdadm-4.1-rc1~113
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b208f817ec538e56df7280f0353e6bda532b9432;p=thirdparty%2Fmdadm.git

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 4ecb1d84..f7325cbd 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);
 		}