From nobody Tue Sep 01 17:22:38 2026 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4hZCNb1sNRz6rBcK for ; Tue, 01 Sep 2026 17:22:39 +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 "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hZCNZ6w0Lz3PZf for ; Tue, 01 Sep 2026 17:22:38 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1788283359; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=ixs9bUs4JnXZ4F2R3GO6//uQM0QfBlcVsEzCxtq2F+w=; b=xpW4gxgynhO5Cr0ny6KbZqecp7zu42WC06gbhMZMHWkq2s0GyE2mResjRjJlX+GJJetuVd Q8NAFJVS7FfMtOlU8wL7Bo64kVIOkBH8jhXPTX8LCMkoxs8wV9AT4OMC5MgWwcz2H75XCR Drut89DlntPBByYOianOp2+EpSj7A216q4BP6M14Ple0yAS4BpTuiI1jzuRi9X6CL3nvxY CmPyAJSiSt5goXsnw/O0PPxvEx85DC1APOYADSC4RDbzfPdarHwhH2uIHr95EhH/DmsbrC 0QPnvRDOyk6j9cRiwdtiD7W9nOpBNG2a1iFXAJVbvCkzvc0z5uspwkkQzOafvw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1788283359; a=rsa-sha256; cv=none; b=uxSKwqTiGc+wmqAmf4BFM9NBVaA3d1uCK/bcGdysikipYJ4oNTv2IRtFtwHLZIWvx6Q35a I3u+/6lQGur4+pp9KngYLuYvm1iu5cjuItxJVaLmtiW9Kx08uxqNEQ6gbrkdg6rL7X7uZj Vk1A0UqCUA0bQPqKW/30MaT/OG8EDzeYbULhqnqQjVPZHh01tfcNUwSwVWwOOelf6c7lBZ VpjRYHD67OCck/uhAqB58N5ZBAoIee9416NEQ59KG2iMl92yPm1pMT7MQbOzqKqbFvGuo6 3oaM/jW7RHvjIhSFqkBhP76sxX/k/XRT7CGSsTGMvR0Hp9FVh4l+EunHdlZoiw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1788283359; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=ixs9bUs4JnXZ4F2R3GO6//uQM0QfBlcVsEzCxtq2F+w=; b=BgaAfNDDMDwMWdSoLkF0t0q6IiYAZkiDQWv5+Bltk2ASL9CjkVFKzsKYxVX1XWVy/UFvGT 6MvEUzmHwzCLyvl50/l9NnA6T9Wki+zwgcZ9dYieAxg62Pps3HjZ+ByQuvNRZpzi5mOGA6 CjejfOr/fqQ/9ArX9wygf5eEf7PWq93dlpIjZnkL6K7FIvYTAZMagsbV+Ea9PHldI+Rrnt WoCKMUHdj1wlpHnCTqMzdAEZjvcycv2QDaeod26+epX3kUOKieYzft29MWKc4+PzKkem9p fa73JPEu39QsADI9vZCZOglRRV7J28bel4z50XXcpHk3YB/ZBSb2E61aA3z7aQ== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4hZCNZ5Vyvz16FX for ; Tue, 01 Sep 2026 17:22:38 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 3af7b by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 01 Sep 2026 17:22:38 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Alexander Motin Subject: git: f73fe9a23c9a - main - geom_linux_lvm: Add BIO_FLUSH support List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: mav X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: f73fe9a23c9a158075ba33eb4d0cff21b90bc769 Auto-Submitted: auto-generated Date: Tue, 01 Sep 2026 17:22:38 +0000 Message-Id: <6a9709de.3af7b.12604@gitrepo.freebsd.org> The branch main has been updated by mav: URL: https://cgit.FreeBSD.org/src/commit/?id=f73fe9a23c9a158075ba33eb4d0cff21b90bc769 commit f73fe9a23c9a158075ba33eb4d0cff21b90bc769 Author: Alexander Motin AuthorDate: 2026-09-01 17:21:35 +0000 Commit: Alexander Motin CommitDate: 2026-09-01 17:22:23 +0000 geom_linux_lvm: Add BIO_FLUSH support --- sys/geom/linux_lvm/g_linux_lvm.c | 50 ++++++++++++++++++++++++++++++++++++---- 1 file changed, 46 insertions(+), 4 deletions(-) diff --git a/sys/geom/linux_lvm/g_linux_lvm.c b/sys/geom/linux_lvm/g_linux_lvm.c index f333c08f45d9..84e206dea4c6 100644 --- a/sys/geom/linux_lvm/g_linux_lvm.c +++ b/sys/geom/linux_lvm/g_linux_lvm.c @@ -188,6 +188,48 @@ g_llvm_done(struct bio *b) g_destroy_bio(b); } +/* + * Called for both BIO_FLUSH and BIO_SPEEDUP. Walk the PVs of the volume + * group rather than the segments of the logical volume, so that a PV holding + * more than one segment of this LV gets only a single request. + */ +static void +g_llvm_passdown(struct g_llvm_vg *vg, struct g_llvm_lv *lv, struct bio *bp) +{ + struct bio_queue_head bq; + struct g_llvm_segment *sg; + struct g_llvm_pv *pv; + struct bio *cb; + + bioq_init(&bq); + LIST_FOREACH(pv, &vg->vg_pvs, pv_next) { + LIST_FOREACH(sg, &lv->lv_segs, sg_next) { + if (sg->sg_pv == pv) + break; + } + if (sg == NULL) + continue; + cb = g_clone_bio(bp); + if (cb == NULL) { + bioq_dismantle(&bq); + if (bp->bio_error == 0) + bp->bio_error = ENOMEM; + g_io_deliver(bp, bp->bio_error); + return; + } + cb->bio_done = g_llvm_done; + cb->bio_caller1 = pv; + bioq_insert_tail(&bq, cb); + } + + while ((cb = bioq_takefirst(&bq)) != NULL) { + pv = cb->bio_caller1; + cb->bio_caller1 = NULL; + G_LLVM_DEBUG(6, "firing bio to %s", pv->pv_gprov->name); + g_io_request(cb, pv->pv_gcons); + } +} + static void g_llvm_start(struct bio *bp) { @@ -213,11 +255,11 @@ g_llvm_start(struct bio *bp) case BIO_DELETE: /* XXX BIO_GETATTR allowed? */ break; + case BIO_SPEEDUP: + case BIO_FLUSH: + g_llvm_passdown(vg, lv, bp); + return; default: - /* - * BIO_SPEEDUP and BIO_FLUSH should pass through to all sg - * elements, but aren't. - */ g_io_deliver(bp, EOPNOTSUPP); return; }