From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 700472D5423 for ; Thu, 3 Jul 2025 09:21:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751534501; cv=none; b=SvxDTCXeMTQOWw6yILj8A9IlJZrkVHWy+mQRF0zJee3NSwK+kw97V8nJLBgdEJjH/wvgIaOTU3zqeJe9D2Iyqxpv3i2ZFhviCl1FDCGJaO7DrN3sbcVz/gfEBkwdjg6QYqno8/bUeuO6YI/QBD8tfSz6LLjv7h3XHGJyetCjl5w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751534501; c=relaxed/simple; bh=ex47TnNCrq8WIbo31uzHQOF5bCf321ncTpleFAh1mMc=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=HtbSwljEv27D0Rvd/YHV+pywGFSawSZlqP91hM7b4yT8w9AlgjwMnSeAGr4rSGGPxvMp8o3ADlz9qvJnyVAnGmPPIY9loEVgiEvVJnG08XQq4O7e7RK/UpqslolleK9cE/nYl3eNEjyj4+1aJbPpsc1Yw0Ahm43huVxliPi4hdY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-86cfccca327so1576851539f.2 for ; Thu, 03 Jul 2025 02:21:39 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751534498; x=1752139298; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=1Bdx33vSlG4V60qvphNaYKwiXkFvAW8NqgQHyPgkPNM=; b=MtZ5InBdKFojEPw+fPnOuilQw74nna0ibQNDSxWvdy0ClishWdEWHdvQgR2sZXf18w O2FRhvQFOP8xs6GiTboLu0aB/pQhiOEBxORJSQxBH1/ulCKT7xAXQ5Y+yp4VY8HjOl3R LbYNawxtpqwnPOBAviOGDRrO4WH030F0+oaZzDcPxsC5ZlAkeN9ypHfop9uiNiNpa7uX aG8a81kjaLfFBmcE2d5GE8SJaPXUiG6KXYNsC+u2/MtsjtykYVhHBgiE5Uzlo7ICiAVO V3PZLwzeQB0d/yhLFVCQNlJE6/oF0hMsgfwm49S5raMOq/VqokjFUIaXBiaQt1Uv9Y/5 O4iw== X-Gm-Message-State: AOJu0Yz2vc0hTCZ4AW4a1l1L+n/MxTBV+RQ4EZ5YHSBYMVTY8B3jh/um MI+++vhonc+cLokdwSSO2ynOPLjVKyhJI8BiwHqigMJO4qvpxtbQfn8wkBIAf84bAzCIsO5B0gP 3oxJc2SbbhOrDn5FwnGl7xxCwQjswNfC+LwlhUYg/xD7r9NTPZe22h2kH1BY= X-Google-Smtp-Source: AGHT+IFrLclciRX+Ev6KxcWWKba3OToGqTNclDX0sH4dLiCuAhxg7GKbzF6c/IyKjpaQWa/F+VabBZ6JVsRPcdE0IRXIdENux3vd Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:3cd:b0:86d:f35:a100 with SMTP id ca18e2360f4ac-876c6a05e77mr833559439f.5.1751534498532; Thu, 03 Jul 2025 02:21:38 -0700 (PDT) Date: Thu, 03 Jul 2025 02:21:38 -0700 In-Reply-To: <686574b1.a70a0220.2b31f5.0002.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68664ba2.a70a0220.2b31f5.0017.GAE@google.com> Subject: Re: [syzbot] Re: [syzbot] [fs?] possible deadlock in __simple_recursive_removal From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: Re: [syzbot] [fs?] possible deadlock in __simple_recursive_removal Author: lizhi.xu@windriver.com #syz test diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 0bd1df2ebb47..e30270e5883a 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -175,7 +175,7 @@ rpc_close_pipes(struct dentry *dentry) int need_release; LIST_HEAD(free_list); - inode_lock(inode); + inode_lock_nested(inode, I_MUTEX_CHILD); spin_lock(&pipe->lock); need_release = pipe->nreaders != 0 || pipe->nwriters != 0; pipe->nreaders = 0;