ext4: add indication of ro vs r/w mounts in the mount message

Whether the file system is mounted read-only or read/write is more
important than the quota mode, which we are already printing.  Add the
ro vs r/w indication since this can be helpful in debugging problems
from the console log.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index bc0b4a98b337ec9bd2c0fcdad9dfa7186be5fef7..9680fe753e599aeca1391ba418db1f5ac3c4941d 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5684,8 +5684,9 @@ static int ext4_fill_super(struct super_block *sb, struct fs_context *fc)
                descr = "out journal";
 
        if (___ratelimit(&ext4_mount_msg_ratelimit, "EXT4-fs mount"))
-               ext4_msg(sb, KERN_INFO, "mounted filesystem %pU with%s. "
-                        "Quota mode: %s.", &sb->s_uuid, descr,
+               ext4_msg(sb, KERN_INFO, "mounted filesystem %pU %s with%s. "
+                        "Quota mode: %s.", &sb->s_uuid,
+                        sb_rdonly(sb) ? "ro" : "r/w", descr,
                         ext4_quota_mode(sb));
 
        /* Update the s_overhead_clusters if necessary */
@@ -6689,8 +6690,9 @@ static int ext4_reconfigure(struct fs_context *fc)
        if (ret < 0)
                return ret;
 
-       ext4_msg(sb, KERN_INFO, "re-mounted %pU. Quota mode: %s.",
-                &sb->s_uuid, ext4_quota_mode(sb));
+       ext4_msg(sb, KERN_INFO, "re-mounted %pU %s. Quota mode: %s.",
+                &sb->s_uuid, sb_rdonly(sb) ? "ro" : "r/w",
+                ext4_quota_mode(sb));
 
        return 0;
 }