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authorSteven Whitehouse <swhiteho@redhat.com>2010-05-06 11:03:29 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2010-05-06 11:03:29 +0100
commit913a71d250803130eac523e7a2b6439e31a0bc83 (patch)
tree5a5c51a5651c49d21cb6f88c63dc063df12acff7 /fs/gfs2/sys.c
parentad6bb90f3401556469489f237cb08626d88703d2 (diff)
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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 <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/sys.c')
-rw-r--r--fs/gfs2/sys.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index 2ac845d9c46c..7afb62ec97cf 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -233,6 +233,8 @@ static ssize_t demote_rq_store(struct gfs2_sbd *sdp, const char *buf, size_t len
glops = gfs2_glops_list[gltype];
if (glops == NULL)
return -EINVAL;
+ if (test_and_set_bit(SDF_DEMOTE, &sdp->sd_flags))
+ fs_info(sdp, "demote interface used\n");
rv = gfs2_glock_get(sdp, glnum, glops, 0, &gl);
if (rv)
return rv;