JFS: Fix race in txLock
TxAnchor.anon_list is protected by jfsTxnLock (TXN_LOCK), but there was
a place in txLock() that was removing an entry from the list without holding
the spinlock.
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index 3555acf..c7a92f9d 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -657,7 +657,9 @@
/* only anonymous txn.
* Remove from anon_list
*/
+ TXN_LOCK();
list_del_init(&jfs_ip->anon_inode_list);
+ TXN_UNLOCK();
}
jfs_ip->atlhead = tlck->next;
} else {