---

yaml
---
r: 163679
b: refs/heads/master
c: 71290b3
h: refs/heads/master
i:
  163677: 56684fd
  163675: 42060d5
  163671: f019b03
  163663: 23b5ef9
  163647: 1a0cb8e
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 08c3a8133810d955d97f7146c50c43e4073f2148
+refs/heads/master: 71290b368ad5e1e0b0b300c9d5638490a9fd1a2d

trunk/fs/ext4/super.c

@@ -3222,7 +3222,18 @@ static int ext4_commit_super(struct super_block *sb, int sync)
 		clear_buffer_write_io_error(sbh);
 		set_buffer_uptodate(sbh);
 	}
-	es->s_wtime = cpu_to_le32(get_seconds());
+	/*
+	 * If the file system is mounted read-only, don't update the
+	 * superblock write time.  This avoids updating the superblock
+	 * write time when we are mounting the root file system
+	 * read/only but we need to replay the journal; at that point,
+	 * for people who are east of GMT and who make their clock
+	 * tick in localtime for Windows bug-for-bug compatibility,
+	 * the clock is set in the future, and this will cause e2fsck
+	 * to complain and force a full file system check.
+	 */
+	if (!(sb->s_flags & MS_RDONLY))
+		es->s_wtime = cpu_to_le32(get_seconds());
 	es->s_kbytes_written =
 		cpu_to_le64(EXT4_SB(sb)->s_kbytes_written + 
 			    ((part_stat_read(sb->s_bdev->bd_part, sectors[1]) -