From 7e84b6216467b84cd332c8e567bf5aa113fd2f38 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Mon, 28 May 2012 14:17:25 -0400 Subject: [PATCH] ext4: force ro mount if ext4_setup_super() fails If ext4_setup_super() fails i.e. due to a too-high revision, the error is logged in dmesg but the fs is not mounted RO as indicated. Tested by: # mkfs.ext4 -r 4 /dev/sdb6 # mount /dev/sdb6 /mnt/test # dmesg | grep "too high" [164919.759248] EXT4-fs (sdb6): revision level too high, forcing read-only mode # grep sdb6 /proc/mounts /dev/sdb6 /mnt/test2 ext4 rw,seclabel,relatime,data=ordered 0 0 Reviewed-by: Andreas Dilger Signed-off-by: Eric Sandeen Signed-off-by: "Theodore Ts'o" Cc: stable@kernel.org --- fs/ext4/super.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 8dfb42e380ea..d9466a508414 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3732,7 +3732,8 @@ no_journal: goto failed_mount4; } - ext4_setup_super(sb, es, sb->s_flags & MS_RDONLY); + if (ext4_setup_super(sb, es, sb->s_flags & MS_RDONLY)) + sb->s_flags |= MS_RDONLY; /* determine the minimum size of new large inodes, if present */ if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE) { -- 2.39.5