The xattr remote value set/remove handlers both clear args.trans in the error path without having cancelled the transaction. This leaks the transaction, causes warnings around returning to userspace with locks held and leads to system lockups or other general problems. The higher level xfs_attr_[set|remove]() functions already detect and cancel args.trans when set in the error path. Drop the NULL assignments from the rmtval handlers and allow the callers to clean up the transaction correctly. Signed-off-by: Brian Foster <bfoster@xxxxxxxxxx> Reviewed-by: Christoph Hellwig <hch@xxxxxx> --- fs/xfs/libxfs/xfs_attr_remote.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c index 7841e6255129..829ab20f0cd7 100644 --- a/fs/xfs/libxfs/xfs_attr_remote.c +++ b/fs/xfs/libxfs/xfs_attr_remote.c @@ -558,7 +558,6 @@ xfs_attr_rmtval_set( return 0; out_defer_cancel: xfs_defer_cancel(args->trans->t_dfops); - args->trans = NULL; return error; } @@ -646,6 +645,5 @@ xfs_attr_rmtval_remove( return 0; out_defer_cancel: xfs_defer_cancel(args->trans->t_dfops); - args->trans = NULL; return error; } -- 2.17.1 -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
