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authorBob Peterson <rpeterso@redhat.com>2020-04-24 12:15:21 -0500
committerAndreas Gruenbacher <agruenba@redhat.com>2020-05-08 15:13:27 +0200
commit53af80ce0eaeb0fc4ce4b565c30e3a16e8e05de0 (patch)
treea45dbd9b24fd504029709f8ae9450628c6d5e519 /fs/gfs2
parenta8b7528b69d4dc7e94d0338851ff8c929231fc4b (diff)
downloadlinux-53af80ce0eaeb0fc4ce4b565c30e3a16e8e05de0.tar.bz2
gfs2: Fix BUG during unmount after file system withdraw
Before this patch, when the logd daemon was forced to withdraw, it would try to request its journal be recovered by another cluster node. However, in single-user cases with lock_nolock, there are no other nodes to recover the journal. Function signal_our_withdraw() was recognizing the lock_nolock situation, but not until after it had evicted its journal inode. Since the journal descriptor that points to the inode was never removed from the master list, when the unmount occurred, it did another iput on the evicted inode, which resulted in a BUG_ON(inode->i_state & I_CLEAR). This patch moves the check for this situation earlier in function signal_our_withdraw(), which avoids the extra iput, so the unmount may happen normally. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/util.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c
index 9b64d40ab379..aa087a5675af 100644
--- a/fs/gfs2/util.c
+++ b/fs/gfs2/util.c
@@ -119,6 +119,12 @@ static void signal_our_withdraw(struct gfs2_sbd *sdp)
if (!sb_rdonly(sdp->sd_vfs))
ret = gfs2_make_fs_ro(sdp);
+ if (sdp->sd_lockstruct.ls_ops->lm_lock == NULL) { /* lock_nolock */
+ if (!ret)
+ ret = -EIO;
+ clear_bit(SDF_WITHDRAW_RECOVERY, &sdp->sd_flags);
+ goto skip_recovery;
+ }
/*
* Drop the glock for our journal so another node can recover it.
*/
@@ -159,10 +165,6 @@ static void signal_our_withdraw(struct gfs2_sbd *sdp)
wait_on_bit(&gl->gl_flags, GLF_FREEING, TASK_UNINTERRUPTIBLE);
}
- if (sdp->sd_lockstruct.ls_ops->lm_lock == NULL) { /* lock_nolock */
- clear_bit(SDF_WITHDRAW_RECOVERY, &sdp->sd_flags);
- goto skip_recovery;
- }
/*
* Dequeue the "live" glock, but keep a reference so it's never freed.
*/