From nobody Tue Dec 16 16:09:54 2025 X-Original-To: dev-commits-src-branches@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 4dW22B2Jn6z6LB5X for ; Tue, 16 Dec 2025 16:09:54 +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 "R12" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dW22B1P38z3F0l for ; Tue, 16 Dec 2025 16:09:54 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1765901394; 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=FlRZayQGjMQ/Pq8MPuW8sa8tA0RtuLtB2DsQ13TIPgY=; b=G/WR16Mq19qVosMaS9sLjKRolvWLPLVgCONTEEu7nztfJlPV+HA2z4TNuEjZbWf3iQQBkZ SihLyjwlwhdNclVVgXX+sJ2wp/uykRXbLputlw9IpXPnwJ+ykINVjid8ycICouwycMWmfD 4/S1KMJKqlin7Bf8aSDf8FmPkan7kTLmkpkUUoBZ/wSc5TpJKMJPqFvQsEWcGKgi2I0ZVz lUI2c+rvf+SguyTvk8mnBQp5OXxrCyv+bYD21H4XI4qWRpE+aN4Th27z37OAbPv+QBaNCe X5XtiF6S0hDsjxUDcDVYHxAeLjly0Kfm8n4XYiulH0vJEu5SaHvmssEGLAvnDg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1765901394; 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=FlRZayQGjMQ/Pq8MPuW8sa8tA0RtuLtB2DsQ13TIPgY=; b=LQvLDCoV6JsDwb93aEtq+ijsyHLMBF5YGGdlzONKJPaDoWz9RjoSsOdQ4bEcSOrrcLms+f bLqW5HMki2U5/Vag7MJ0Mjwc/kRXpl7BqmPOkfdkauZYkSaq+iPQBVW4lNSDCm2fiNmM4f 72CNGH2eE7ioPIcK8KwFXr4uPQg0ZXTUCm3+iZ0udemrH6Y4/tMQp8CnqPN5FOyWt5T55l o/yKVG/x6q6Mzhd0HaFa7YcOhJrEih1K9XIuH9KUjhGQKSgrgcHgqLvX3eG7m9JQ45pAp2 PlqR4D6ylHhaUj3xpuTnXADNWrWY4BdPk9L+8EDs8HUvr5VAtrttxamnY0AWiA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1765901394; a=rsa-sha256; cv=none; b=NBTGIQfzqXSfZqNqpuH0EvadhKUu//TTU0hdrVhNrjyF/GR/jAltOBnx6qIW8hBk4b6L7o Zk3bNmN0Bk/rP1nG0HmxQS/gwF3/MgeFaHEZ/bi/KX4AQoQFdgdyFyCRmVvVHg76d0uKHH 35IS4JTxu2IQxBJtE4Qb7EV8YDxYOKb2cT3pIvfoi87eSeT3QRF3zXsspN8KqvlI896hyB NimbiJed4ilwRnAvUfOy+5zb6TT7+cFh2izOAMmMa1B7AYD4Iu6jiKRrSkTJfFFZ5UuTc/ srD95alol5bElANfU+SSvO5kEdPN/+/hW8qMmBYhBq4yUtVX6sMpr8teCurAWw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4dW22B0zTxz1CR5 for ; Tue, 16 Dec 2025 16:09:54 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 46340 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 16 Dec 2025 16:09:54 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Eugene Grosbein Subject: git: c93d9e082b4e - stable/13 - trim.8: minor update for manual page List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-branches@freebsd.org Sender: owner-dev-commits-src-branches@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: eugen X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: c93d9e082b4e3d3fb367a1fd56cf447bccae2e93 Auto-Submitted: auto-generated Date: Tue, 16 Dec 2025 16:09:54 +0000 Message-Id: <69418452.46340.2c6aa3ea@gitrepo.freebsd.org> The branch stable/13 has been updated by eugen: URL: https://cgit.FreeBSD.org/src/commit/?id=c93d9e082b4e3d3fb367a1fd56cf447bccae2e93 commit c93d9e082b4e3d3fb367a1fd56cf447bccae2e93 Author: Eugene Grosbein AuthorDate: 2025-12-09 14:47:26 +0000 Commit: Eugene Grosbein CommitDate: 2025-12-16 16:09:30 +0000 trim.8: minor update for manual page Further explain that trim(8) is not for trimming free blocks in populated file systems/ZFS pools, as people still take it wrong sometimes. (cherry picked from commit dbc4a1c69191909a7210cad6da46b755557d0d34) (cherry picked from commit b2f8d46d898fb50222aefca47d687a852c647b2f) --- usr.sbin/trim/trim.8 | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/usr.sbin/trim/trim.8 b/usr.sbin/trim/trim.8 index ebb8b927cd91..b4799399e110 100644 --- a/usr.sbin/trim/trim.8 +++ b/usr.sbin/trim/trim.8 @@ -23,7 +23,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd October 1, 2025 +.Dd December 9, 2025 .Dt TRIM 8 .Os .Sh NAME @@ -51,11 +51,21 @@ utility erases specified region of the device. It is mostly relevant for a storage that implements trim (like flash based, or thinly provisioned storage). .Sy All erased data is lost. -Alternatively, refer to the +.Pp +The +.Nm +utility should not be used upon mounted file system or active devices +being a part of imported ZFS pool or other software RAID, and the kernel +does not permit such usage generally. +If used upon not mounted file system +or inactive device, the +.Nm +utility erases blocks non-selectively, whether a block is occupied or not. +Refer to the .Xr fsck_ffs 8 command having a flag .Fl E -to trim populated UFS, and to the +to trim free blocks inside populated UFS, and to the .Xr zpool-trim 8 command to trim existing ZFS pool. .Pp