From e8ca5cc571a60339491f8c273a01093096ff8704 Mon Sep 17 00:00:00 2001 From: David Teigland Date: Mon, 9 Jan 2012 14:40:06 -0500 Subject: 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 Signed-off-by: Steven Whitehouse --- fs/gfs2/incore.h | 1 + fs/gfs2/ops_fstype.c | 2 +- fs/gfs2/recovery.c | 4 +++- 3 files changed, 5 insertions(+), 2 deletions(-) (limited to 'fs') 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 { -- cgit v1.2.3