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/super.c b/fs/jfs/super.c
index c2abdae..9ff8972 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -114,6 +114,8 @@
{
struct jfs_inode_info *ji = JFS_IP(inode);
+ BUG_ON(!list_empty(&ji->anon_inode_list));
+
spin_lock_irq(&ji->ag_lock);
if (ji->active_ag != -1) {
struct bmap *bmap = JFS_SBI(inode->i_sb)->bmap;