JFS: kernel BUG at fs/jfs/jfs_txnmgr.c:859

add_missing_indices() must set tlck->type to tlckBTROOT when modifying
a root btree root to avoid a trap in txRelease()

Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>

diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c
index ac41f72..8676aee 100644 (file)
--- a/fs/jfs/jfs_dtree.c
+++ b/fs/jfs/jfs_dtree.c
@@ -2931,6 +2931,9 @@ static void add_missing_indices(struct inode *inode, s64 bn)
        ASSERT(p->header.flag & BT_LEAF);
 
        tlck = txLock(tid, inode, mp, tlckDTREE | tlckENTRY);
+       if (BT_IS_ROOT(mp))
+               tlck->type |= tlckBTROOT;
+
        dtlck = (struct dt_lock *) &tlck->lock;
 
        stbl = DT_GETSTBL(p);