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| author | Steven Whitehouse <swhiteho@redhat.com> | 2010-05-06 11:03:29 +0100 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2010-05-06 11:03:29 +0100 |
| commit | 913a71d250803130eac523e7a2b6439e31a0bc83 (patch) | |
| tree | 5a5c51a5651c49d21cb6f88c63dc063df12acff7 /fs/gfs2/sys.c | |
| parent | ad6bb90f3401556469489f237cb08626d88703d2 (diff) | |
| download | linux-3.10-913a71d250803130eac523e7a2b6439e31a0bc83.tar.gz linux-3.10-913a71d250803130eac523e7a2b6439e31a0bc83.tar.bz2 linux-3.10-913a71d250803130eac523e7a2b6439e31a0bc83.zip | |
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.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c index 2ac845d9c46..7afb62ec97c 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; |