From owner-dev-commits-src-branches@freebsd.org Sat Apr 10 06:02:09 2021 Return-Path: Delivered-To: dev-commits-src-branches@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 0793E5CFB26; Sat, 10 Apr 2021 06:02:09 +0000 (UTC) (envelope-from git@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 "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4FHPXc5jmDz4R9k; Sat, 10 Apr 2021 06:02:08 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id A82BB422F; Sat, 10 Apr 2021 06:02:08 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 13A628bW015247; Sat, 10 Apr 2021 06:02:08 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 13A6289I015246; Sat, 10 Apr 2021 06:02:08 GMT (envelope-from git) Date: Sat, 10 Apr 2021 06:02:08 GMT Message-Id: <202104100602.13A6289I015246@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Mateusz Guzik Subject: git: 4606d441703d - stable/13 - vfs: employ vfs_ref_from_vp in statfs and fstatfs MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: mjg X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: 4606d441703d695ab74d6e66fadc18703615e4dc Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-branches@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commits to the stable branches of the FreeBSD src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Apr 2021 06:02:09 -0000 The branch stable/13 has been updated by mjg: URL: https://cgit.FreeBSD.org/src/commit/?id=4606d441703d695ab74d6e66fadc18703615e4dc commit 4606d441703d695ab74d6e66fadc18703615e4dc Author: Mateusz Guzik AuthorDate: 2021-02-15 22:08:20 +0000 Commit: Mateusz Guzik CommitDate: 2021-04-10 05:57:55 +0000 vfs: employ vfs_ref_from_vp in statfs and fstatfs Avoids locking and unlocking the vnode. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D28695 (cherry picked from commit 81174cd8e24aa2bb27f6a8b41032abf59add479f) --- sys/kern/vfs_syscalls.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c index 40dd8c069bfb..3db34c3689de 100644 --- a/sys/kern/vfs_syscalls.c +++ b/sys/kern/vfs_syscalls.c @@ -331,15 +331,13 @@ kern_statfs(struct thread *td, const char *path, enum uio_seg pathseg, struct nameidata nd; int error; - NDINIT(&nd, LOOKUP, FOLLOW | LOCKSHARED | LOCKLEAF | AUDITVNODE1, - pathseg, path, td); + NDINIT(&nd, LOOKUP, FOLLOW | AUDITVNODE1, pathseg, path, td); error = namei(&nd); if (error != 0) return (error); - mp = nd.ni_vp->v_mount; - vfs_ref(mp); + mp = vfs_ref_from_vp(nd.ni_vp); NDFREE_NOTHING(&nd); - vput(nd.ni_vp); + vrele(nd.ni_vp); return (kern_do_statfs(td, mp, buf)); } @@ -379,14 +377,14 @@ kern_fstatfs(struct thread *td, int fd, struct statfs *buf) if (error != 0) return (error); vp = fp->f_vnode; - vn_lock(vp, LK_SHARED | LK_RETRY); #ifdef AUDIT - AUDIT_ARG_VNODE1(vp); + if (AUDITING_TD(td)) { + vn_lock(vp, LK_SHARED | LK_RETRY); + AUDIT_ARG_VNODE1(vp); + VOP_UNLOCK(vp); + } #endif - mp = vp->v_mount; - if (mp != NULL) - vfs_ref(mp); - VOP_UNLOCK(vp); + mp = vfs_ref_from_vp(vp); fdrop(fp, td); return (kern_do_statfs(td, mp, buf)); }