---

yaml --- r: 331596 b: refs/heads/master c: 0acdb88 h: refs/heads/master v: v3
git-mirror · Sep 26, 2012 · 18f194e · 18f194e
1 parent 727e1d0
commit 18f194e
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7f1468d1d50d368097ab13596dc08eaba7eace7f
+refs/heads/master: 0acdb8876fead922c9ffa6768c5675a37485c48c
diff --git a/trunk/fs/ext4/resize.c b/trunk/fs/ext4/resize.c
@@ -1460,15 +1460,19 @@ static int ext4_flex_group_add(struct super_block *sb,
 				   EXT4_DESC_PER_BLOCK(sb));
 		int meta_bg = EXT4_HAS_INCOMPAT_FEATURE(sb,
 				EXT4_FEATURE_INCOMPAT_META_BG);
+		sector_t old_gdb = 0;
 
 		update_backups(sb, sbi->s_sbh->b_blocknr, (char *)es,
 			       sizeof(struct ext4_super_block), 0);
 		for (; gdb_num <= gdb_num_end; gdb_num++) {
 			struct buffer_head *gdb_bh;
 
 			gdb_bh = sbi->s_group_desc[gdb_num];
+			if (old_gdb == gdb_bh->b_blocknr)
+				continue;
 			update_backups(sb, gdb_bh->b_blocknr, gdb_bh->b_data,
 				       gdb_bh->b_size, meta_bg);
+			old_gdb = gdb_bh->b_blocknr;
 		}
 	}
 exit: