From owner-svn-src-head@freebsd.org Fri Oct 16 09:58:11 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 9C7DF42EAE3; Fri, 16 Oct 2020 09:58:11 +0000 (UTC) (envelope-from trasz@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 4CCM6C3lMbz4hZp; Fri, 16 Oct 2020 09:58:11 +0000 (UTC) (envelope-from trasz@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 5E621E576; Fri, 16 Oct 2020 09:58:11 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 09G9wBqH018388; Fri, 16 Oct 2020 09:58:11 GMT (envelope-from trasz@FreeBSD.org) Received: (from trasz@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 09G9wBIq018387; Fri, 16 Oct 2020 09:58:11 GMT (envelope-from trasz@FreeBSD.org) Message-Id: <202010160958.09G9wBIq018387@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: trasz set sender to trasz@FreeBSD.org using -f From: Edward Tomasz Napierala Date: Fri, 16 Oct 2020 09:58:11 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r366748 - head/sys/fs/pseudofs X-SVN-Group: head X-SVN-Commit-Author: trasz X-SVN-Commit-Paths: head/sys/fs/pseudofs X-SVN-Commit-Revision: 366748 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, 16 Oct 2020 09:58:11 -0000 Author: trasz Date: Fri Oct 16 09:58:10 2020 New Revision: 366748 URL: https://svnweb.freebsd.org/changeset/base/366748 Log: Bump pseudofs size limit from 128kB to 1MB. The old limit could result in process' memory maps being truncated. PR: 237883 Submitted by: dchagin MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D20575 Modified: head/sys/fs/pseudofs/pseudofs_vnops.c Modified: head/sys/fs/pseudofs/pseudofs_vnops.c ============================================================================== --- head/sys/fs/pseudofs/pseudofs_vnops.c Fri Oct 16 08:56:20 2020 (r366747) +++ head/sys/fs/pseudofs/pseudofs_vnops.c Fri Oct 16 09:58:10 2020 (r366748) @@ -68,6 +68,8 @@ __FBSDID("$FreeBSD$"); KASSERT((pn)->pn_type == pfstype_symlink, \ ("%s(): VLNK vnode refers to non-link pfs_node", __func__)) +#define PFS_MAXBUFSIZ 1024 * 1024 + /* * Returns the fileno, adjusted for target pid */ @@ -677,8 +679,8 @@ pfs_read(struct vop_read_args *va) goto ret; } buflen = uio->uio_offset + uio->uio_resid; - if (buflen > MAXPHYS) - buflen = MAXPHYS; + if (buflen > PFS_MAXBUFSIZ) + buflen = PFS_MAXBUFSIZ; sb = sbuf_new(sb, NULL, buflen + 1, 0); if (sb == NULL) {