Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754106Ab3JBLDW (ORCPT ); Wed, 2 Oct 2013 07:03:22 -0400 Received: from relay.parallels.com ([195.214.232.42]:34678 "EHLO relay.parallels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753331Ab3JBLDU (ORCPT ); Wed, 2 Oct 2013 07:03:20 -0400 Subject: [PATCH 5/5] fuse: writepages: protect secondary requests from fuse file release To: miklos@szeredi.hu From: Maxim Patlasov Cc: fuse-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Date: Wed, 02 Oct 2013 15:03:19 +0400 Message-ID: <20131002110254.26932.38934.stgit@dhcp-10-30-17-2.sw.ru> In-Reply-To: <20131002105815.26932.46041.stgit@dhcp-10-30-17-2.sw.ru> References: <20131002105815.26932.46041.stgit@dhcp-10-30-17-2.sw.ru> User-Agent: StGit/0.16 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1135 Lines: 28 All async fuse requests must be supplied with extra reference to a fuse file. This is necessary to ensure that the fuse file is not released until all in-flight requests are completed. Fuse secondary writeback requests must obey this rule as well. Signed-off-by: Maxim Patlasov --- fs/fuse/file.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 06d6099..23bc608 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1548,6 +1548,7 @@ static void fuse_writepage_end(struct fuse_conn *fc, struct fuse_req *req) struct fuse_req *next = req->misc.write.next; req->misc.write.next = next->misc.write.next; next->misc.write.next = NULL; + next->ff = fuse_file_get(req->ff); list_add(&next->writepages_entry, &fi->writepages); list_add_tail(&next->list, &fi->queued_writes); fuse_flush_writepages(inode); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/