From nobody Tue Dec 16 14:55:12 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 4dW0N05z0Dz6L4HD for ; Tue, 16 Dec 2025 14:55:12 +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 4dW0N03J3gz3q8P for ; Tue, 16 Dec 2025 14:55:12 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1765896912; 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=KPQcvgNytT5xVpYOvQoEzzRijuOfWWOZWwlb6rKfF50=; b=nhdR8u6xHNCEq4+eumEp9TC5ev+Hk8tskQ+NjWjI83DgHZZrYn0b18om1xdkWEPXZd9uVz nY/lhf4HjlQaYn3FwinRYSsrz4Bl736gn/2C3BL7BfO0s3PNQcvBj2Cn5Cv3UO6q3FynQi OEsdSNZfq3WNzjxuF10L8hUlw9yKnZIgoCtdEdYEmf5Znm9tOej5NBBaky6TpdkS7qq7DQ YtLM07QKvrS1aYzvzuPRw6TsT69hTcRrqfnW1Mb+8Kw3DwyoPhlv26pjQAkqD88j5pG4pu 4Czh3cHfvCfj8SMMpr+2WEjv6ouPgCTDrrZ1yK3kEXAnrq9IF0QG5NEoO/lCGw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1765896912; 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=KPQcvgNytT5xVpYOvQoEzzRijuOfWWOZWwlb6rKfF50=; b=p7xN/KWRSMQ+nD/iyPPdD/xKXJYKToUjTEdPFr6Q40v7Iq9TwJEOKeNAq+wfFAFsRdqrxL ZfAXRLEOdxHgiorhsjciS9tdDY+OPcxFzzc96rZO3hvBZyjGebzvaHX8pnqB0PTZbNm8vT WamLT3byE1/ig2FpagVn8ROl0IEcIggti2W+b/5sqZBC8vpoO2Kvb7NkLEAqdhi7ILS7Y/ lLtK+MTusha8t9GVmblj1gOEGTVCM1qQhAoXeBD/0dcoK9hkhyanNDztqtiNmSG5Vr4DUn sGkmOuYg+z/FWBGWIrzKZkj4HT7OOwrQbAxskoi3l7qWSaVTISZcV6OwDmryQA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1765896912; a=rsa-sha256; cv=none; b=wohDeAH+ENuwAF8SF22yZsJcbjVi1aJ+56deFKkuVlmzvzy6P4hao2m7AgG0+Vl4finrBT 9JSNW6ndwNR8X7MTtN+4rKitBE+8oz9byv5NFESXR1DVvAXzBtk4SACtVsJnBDJDKP33zO C4PGq/aE51Og5bxKbN0YaJSrR3ZdmsBlx7pYlva+/TiKFL5Mi40iOINZM+KNkxkxcr9Itv mU/oxPm4DUGIaRNAX3wmBgqm/g/c1Glz87m8CEVGzbfQ0ec3g1bpefoiBrLlHqyUXCyo2X iyYaGvkuuzcgu7Y6kBQ8eEARdlFrWCGpsgUQdmmaUW9qUWqMDpIT7RTHKX8pxg== 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 4dW0N02cjKz19Df for ; Tue, 16 Dec 2025 14:55:12 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 3f472 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 16 Dec 2025 14:55:12 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Eugene Grosbein Subject: git: f327af946e9c - stable/15 - 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/15 X-Git-Reftype: branch X-Git-Commit: f327af946e9c57551f6aaef2c747f970342f8940 Auto-Submitted: auto-generated Date: Tue, 16 Dec 2025 14:55:12 +0000 Message-Id: <694172d0.3f472.5dd9a1ee@gitrepo.freebsd.org> The branch stable/15 has been updated by eugen: URL: https://cgit.FreeBSD.org/src/commit/?id=f327af946e9c57551f6aaef2c747f970342f8940 commit f327af946e9c57551f6aaef2c747f970342f8940 Author: Eugene Grosbein AuthorDate: 2025-12-09 14:47:26 +0000 Commit: Eugene Grosbein CommitDate: 2025-12-16 14:55:03 +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 eef369703715..caef15d98c13 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