From 913a71d250803130eac523e7a2b6439e31a0bc83 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Thu, 6 May 2010 11:03:29 +0100 Subject: GFS2: Add some useful messages The following patch adds a message to indicate when barriers have been disabled due to a block device which doesn't support them. You could already tell this via the mount options in /proc/mounts, but all the other filesystems also log a message at the same time. Also, the same mechanisms are used to indicate when the lock demote interface has been used (only ever used for debugging) which is a request from our support team. Signed-off-by: Steven Whitehouse --- fs/gfs2/super.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'fs/gfs2/super.c') diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index 7a93e9f..4d1aad3 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -1334,7 +1334,8 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt) } if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags)) seq_printf(s, ",nobarrier"); - + if (test_bit(SDF_DEMOTE, &sdp->sd_flags)) + seq_printf(s, ",demote_interface_used"); return 0; } -- cgit v1.1