From owner-svn-src-head@freebsd.org Fri May 22 18:03:15 2020 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 7AF202CFDB0; Fri, 22 May 2020 18:03:15 +0000 (UTC) (envelope-from asomers@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49TDql1PPjz4f7m; Fri, 22 May 2020 18:03:15 +0000 (UTC) (envelope-from asomers@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 2B67E22A18; Fri, 22 May 2020 18:03:15 +0000 (UTC) (envelope-from asomers@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 04MI3FmL056892; Fri, 22 May 2020 18:03:15 GMT (envelope-from asomers@FreeBSD.org) Received: (from asomers@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 04MI3Fvu056891; Fri, 22 May 2020 18:03:15 GMT (envelope-from asomers@FreeBSD.org) Message-Id: <202005221803.04MI3Fvu056891@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: asomers set sender to asomers@FreeBSD.org using -f From: Alan Somers Date: Fri, 22 May 2020 18:03:15 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r361399 - head/sys/fs/fuse X-SVN-Group: head X-SVN-Commit-Author: asomers X-SVN-Commit-Paths: head/sys/fs/fuse X-SVN-Commit-Revision: 361399 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 May 2020 18:03:15 -0000 Author: asomers Date: Fri May 22 18:03:14 2020 New Revision: 361399 URL: https://svnweb.freebsd.org/changeset/base/361399 Log: Disable nullfs cacheing on top of fusefs Nullfs cacheing can keep a large number of vnodes active. That results in more active FUSE file handles, causing some FUSE servers to use extra resources. Disable nullfs cacheing for fusefs, just like we already do for NFSv4. PR: 245688 Reported by: MooseFS FreeBSD Team MFC after: 2 weeks Modified: head/sys/fs/fuse/fuse_vfsops.c Modified: head/sys/fs/fuse/fuse_vfsops.c ============================================================================== --- head/sys/fs/fuse/fuse_vfsops.c Fri May 22 17:52:09 2020 (r361398) +++ head/sys/fs/fuse/fuse_vfsops.c Fri May 22 18:03:14 2020 (r361399) @@ -425,6 +425,11 @@ fuse_vfsop_mount(struct mount *mp) */ mp->mnt_flag &= ~MNT_LOCAL; mp->mnt_kern_flag |= MNTK_USES_BCACHE; + /* + * Disable nullfs cacheing because it can consume too many resources in + * the FUSE server. + */ + mp->mnt_kern_flag |= MNTK_NULL_NOCACHE; MNT_IUNLOCK(mp); /* We need this here as this slot is used by getnewvnode() */ mp->mnt_stat.f_iosize = maxbcachebuf;