diff options
| author | David Teigland <teigland@redhat.com> | 2012-01-09 14:40:06 -0500 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2012-01-11 09:23:40 +0000 |
| commit | e8ca5cc571a60339491f8c273a01093096ff8704 (patch) | |
| tree | e5133a5600113e8c2849675ab96dce0e6521aa09 /fs/gfs2 | |
| parent | 49528b4e479195e5db4fe51fcd5ddd97901efc16 (diff) | |
| download | lwn-e8ca5cc571a60339491f8c273a01093096ff8704.tar.gz lwn-e8ca5cc571a60339491f8c273a01093096ff8704.zip | |
GFS2: let spectator mount do read only recovery
Previously, a spectator mount would not even attempt to do
journal recovery for a failed node. This meant that if all
mounted nodes were spectators, everyone would be stuck after
a node failed, all waiting for recovery to be performed.
This is unnecessary since the failed node had a clean journal.
Instead, allow a spectator mount to do a partial "read only"
recovery, which means it will check if the failed journal is
clean, and if so, report a successful recovery. If the failed
journal is not clean, it reports that journal recovery failed.
This makes it work the same as a read only mount on a read only
block device.
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2')
| -rw-r--r-- | fs/gfs2/incore.h | 1 | ||||
| -rw-r--r-- | fs/gfs2/ops_fstype.c | 2 | ||||
| -rw-r--r-- | fs/gfs2/recovery.c | 4 |
3 files changed, 5 insertions, 2 deletions
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index b9422bc8e2fe..e5701c70f6fb 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -498,6 +498,7 @@ enum { SDF_NORECOVERY = 4, SDF_DEMOTE = 5, SDF_NOJOURNALID = 6, + SDF_RORECOVERY = 7, /* read only recovery */ }; #define GFS2_FSNAME_LEN 256 diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index b01573b7ad96..6aacf3f230a2 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -1078,7 +1078,7 @@ static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent if (sdp->sd_args.ar_spectator) { sb->s_flags |= MS_RDONLY; - set_bit(SDF_NORECOVERY, &sdp->sd_flags); + set_bit(SDF_RORECOVERY, &sdp->sd_flags); } if (sdp->sd_args.ar_posix_acl) sb->s_flags |= MS_POSIXACL; diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c index af49e8f432fe..80701d1566a1 100644 --- a/fs/gfs2/recovery.c +++ b/fs/gfs2/recovery.c @@ -516,7 +516,9 @@ void gfs2_recover_func(struct work_struct *work) if (error) goto fail_gunlock_ji; - if (test_bit(SDF_JOURNAL_CHECKED, &sdp->sd_flags)) { + if (test_bit(SDF_RORECOVERY, &sdp->sd_flags)) { + ro = 1; + } else if (test_bit(SDF_JOURNAL_CHECKED, &sdp->sd_flags)) { if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) ro = 1; } else { |