From: NeilBrown <neilb@suse.de>
Date: Mon, 31 Jan 2011 05:57:40 +0000 (+1100)
Subject: Initialise all of file when opening backup file for reshape.
X-Git-Tag: mdadm-3.2~22
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ca4fe0bfd3a070be087eb61da395c1d156cc95ac;p=thirdparty%2Fmdadm.git

Initialise all of file when opening backup file for reshape.

Due to a miscalculation we didn't initialise the whole file.
There is 4K (8 sectors) for the metadata, then the data.

Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/Grow.c b/Grow.c
index 2a138318..b81f09eb 100644
--- a/Grow.c
+++ b/Grow.c
@@ -832,7 +832,7 @@ int reshape_open_backup_file(char *backup_file,
 	}
 
 	memset(buf, 0, 512);
-	for (i=0; i < blocks + 1 ; i++) {
+	for (i=0; i < blocks + 8 ; i++) {
 		if (write(*fdlist, buf, 512) != 512) {
 			fprintf(stderr, Name ": %s: cannot create"
 				" backup file %s: %s\n",