Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752808AbdFGXDz (ORCPT ); Wed, 7 Jun 2017 19:03:55 -0400 Received: from wtarreau.pck.nerim.net ([62.212.114.60]:50474 "EHLO 1wt.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751541AbdFGXDw (ORCPT ); Wed, 7 Jun 2017 19:03:52 -0400 From: Willy Tarreau To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, linux@roeck-us.net Cc: Miklos Szeredi , Jiri Slaby , Willy Tarreau Subject: [PATCH 3.10 151/250] fuse: add missing FR_FORCE Date: Thu, 8 Jun 2017 00:58:57 +0200 Message-Id: <1496876436-32402-152-git-send-email-w@1wt.eu> X-Mailer: git-send-email 2.8.0.rc2.1.gbe9624a In-Reply-To: <1496876436-32402-1-git-send-email-w@1wt.eu> References: <1496876436-32402-1-git-send-email-w@1wt.eu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1094 Lines: 35 From: Miklos Szeredi commit 2e38bea99a80eab408adee27f873a188d57b76cb upstream. fuse_file_put() was missing the "force" flag for the RELEASE request when sending synchronously (fuseblk). If this flag is not set, then a sync request may be interrupted before it is dequeued by the userspace filesystem. In this case the OPEN won't be balanced with a RELEASE. [js] force is a variable, not a bit Signed-off-by: Miklos Szeredi Fixes: 5a18ec176c93 ("fuse: fix hang of single threaded fuseblk filesystem") Signed-off-by: Jiri Slaby Signed-off-by: Willy Tarreau --- fs/fuse/file.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 7ada0f0..1dce930 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -128,6 +128,7 @@ static void fuse_file_put(struct fuse_file *ff, bool sync) struct fuse_req *req = ff->reserved_req; if (sync) { + req->force = 1; req->background = 0; fuse_request_send(ff->fc, req); path_put(&req->misc.release.path); -- 2.8.0.rc2.1.gbe9624a