ext4: make "norecovery" an alias for "noload"

(cherry picked from commit e3bb52ae2bb9573e84c17b8e3560378d13a5c798)

Users on the linux-ext4 list recently complained about differences
across filesystems w.r.t. how to mount without a journal replay.

In the discussion it was noted that xfs's "norecovery" option is
perhaps more descriptively accurate than "noload," so let's make
that an alias for ext4.

Also show this status in /proc/mounts

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt
index 4f60b4f876d6f2229de08f21c3bb3e6dda11bbed..32c3da454afa0846986e2e3c3ca2fc2ccdac7bf5 100644 (file)
--- a/Documentation/filesystems/ext4.txt
+++ b/Documentation/filesystems/ext4.txt
@@ -153,8 +153,8 @@ journal_dev=devnum  When the external journal device's major/minor numbers
                        identified through its new major/minor numbers encoded
                        in devnum.
 
-noload                 Don't load the journal on mounting.  Note that
-                       if the filesystem was not unmounted cleanly,
+norecovery             Don't load the journal on mounting.  Note that
+noload                 if the filesystem was not unmounted cleanly,
                        skipping the journal replay will lead to the
                        filesystem containing inconsistencies that can
                        lead to any number of problems.

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index dc87c6f05865aca7ab83a4a4e02f1140429848ef..e64827a29508225fb99d3d58fd787dbcefb49e08 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -909,6 +909,9 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
        if (test_opt(sb, DISCARD))
                seq_puts(seq, ",discard");
 
+       if (test_opt(sb, NOLOAD))
+               seq_puts(seq, ",norecovery");
+
        ext4_show_quota_options(seq, sb);
 
        return 0;
@@ -1115,6 +1118,7 @@ static const match_table_t tokens = {
        {Opt_acl, "acl"},
        {Opt_noacl, "noacl"},
        {Opt_noload, "noload"},
+       {Opt_noload, "norecovery"},
        {Opt_nobh, "nobh"},
        {Opt_bh, "bh"},
        {Opt_commit, "commit=%u"},