From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9F00C1607A1; Wed, 21 Aug 2024 19:07:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724267259; cv=none; b=QutL3PXr550rg3w++QR8aLfRJFN+6Lh7GFn1+hL957hgdbx+5Oqe9S0MVZOm0eFuAS4R9VuigbqzPsWhi2MyHj1gPzvIpT5AJwJFqwRF6gkhJ4STZi/+UFRMkQfRzs3WKulaqU17T/N8wyYg/l9QDWabVsXidWkC9NVd/+8f3Sk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724267259; c=relaxed/simple; bh=O9RY1Ove902GZVITFaQMiLtItTTYUrbs9eofkn1Yd7U=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=oqRrB9y0z96gBjSTjaAhq6/86ink+tH8I0SUmQ1sFDg0JgJdgmbqHwka1s7khyRY3fLrV75cZLSgzXXTyYTrqB76UaBRL68vbw5IykVy8KUsSnkt0CtbEC8SwKklK4kCbGX/3bVITf+z+tiapCRIAtnsKKU7SQIwaRP6pov8eiw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KguwXKDy; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KguwXKDy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EFFA8C32781; Wed, 21 Aug 2024 19:07:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1724267259; bh=O9RY1Ove902GZVITFaQMiLtItTTYUrbs9eofkn1Yd7U=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=KguwXKDyQ94nUbwlRogaiPKldLON+Qq2M0W2viol7NuxE90rdfBmfo1LJOJOaPgoJ cSF79EsGUFXo0RNmFG/IxfF4d/hCsYU7XOK0BgsmRmgN3F6SmL/LcKO/XZW9YSKk6w 8QV5MlMb64YdhDrkCv1qLVGoVhSBU2xA4Az1w0xJ9XdzprZ89T7xX66Zs/PZWN1jmp leze0y/IDz0hM4rpcPLRboWOPbpBw1xUln+rMIhTeZEXRFILH5xE8nSe99JT4vQUrg 0EV7fdxvp6aiwbHTDItP35n6HQiuHHMhTc8W61shoACNh8GujtWlYY15Q5wCRHlEng ohv1nn4aLXDZQ== Message-ID: <74ec1679e53801d427490cac363a5b2e97c3a452.camel@kernel.org> Subject: Re: [PATCH fstests v2] generic/755: test that inode's ctime is updated on unlink From: Jeff Layton To: Zorro Lang Cc: fstests@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig Date: Wed, 21 Aug 2024 15:07:37 -0400 In-Reply-To: <20240821184653.dbwzyp2tiblsmkzw@dell-per750-06-vm-08.rhts.eng.pek2.redhat.com> References: <20240820-master-v2-1-41703dddcc32@kernel.org> <20240821184653.dbwzyp2tiblsmkzw@dell-per750-06-vm-08.rhts.eng.pek2.redhat.com> Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; keydata=mQINBE6V0TwBEADXhJg7s8wFDwBMEvn0qyhAnzFLTOCHooMZyx7XO7dAiIhDSi7G1NPxw n8jdFUQMCR/GlpozMFlSFiZXiObE7sef9rTtM68ukUyZM4pJ9l0KjQNgDJ6Fr342Htkjxu/kFV1Wv 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linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Thu, 2024-08-22 at 02:46 +0800, Zorro Lang wrote: > On Tue, Aug 20, 2024 at 03:48:25PM -0400, Jeff Layton wrote: > > I recently found and fixed a bug in btrfs where it wasn't updating > > the > > citme on the target inode when unlinking [1]. Add a fstest for > > this. > >=20 > > [1]: > > https://lore.kernel.org/linux-btrfs/20240812-btrfs-unlink-v1-1-ee5c2ef5= 38eb@kernel.org/ > >=20 > > Signed-off-by: Jeff Layton > > --- > > HCH suggested I roll a fstest for this problem that I found in > > btrfs the > > other day. This just creates a file and a hardlink to it, statx's > > it and > > then unlinks the hardlink and statx's it again. The ctimes are then > > compared. > > --- > > Changes in v2: > > - Turn it into a shell script. > > - Link to v1: > > https://lore.kernel.org/r/20240813-master-v1-1-862678cc4000@kernel.org > > --- > > =C2=A0tests/generic/755=C2=A0=C2=A0=C2=A0=C2=A0 | 38 ++++++++++++++++++= ++++++++++++++++++++ > > =C2=A0tests/generic/755.out |=C2=A0 2 ++ > > =C2=A02 files changed, 40 insertions(+) > >=20 > > diff --git a/tests/generic/755 b/tests/generic/755 > > new file mode 100755 > > index 000000000000..68da3b20073f > > --- /dev/null > > +++ b/tests/generic/755 > > @@ -0,0 +1,38 @@ > > +#! /bin/bash > > +# SPDX-License-Identifier: GPL-2.0 > > +# Copyright (c) 2024, Jeff Layton > > +# > > +# FS QA Test No. 755 > > +# > > +# Create a file, stat it and then unlink it. Does the ctime of the > > +# target inode change? > > +# > > +. ./common/preamble > > +_begin_fstest auto quick > > + > > +_require_test > > +_require_test_program unlink-ctime > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 ^^= ^^ > This V2 shouldn't require this program, it's cause this case _notrun > directly. Doh! I removed that line on my test box, but forgot to fix it in tree. > The 3bc2ac2f8f0b ("btrfs: update target inode's ctime on unlink") has > been merged, >=20 > I'll remove this "_require_test_program" line, and add: > [ "$FSTYP =3D btrfs"] && _fixed_by_kernel_commit 3bc2ac2f8f0b \ > "btrfs: update target inode's ctime on unlink" >=20 > when I merge this patch. Others looks good to me. >=20 > Reviewed-by: Zorro Lang >=20 Thanks, that sounds great. > > + > > +testfile=3D"$TEST_DIR/unlink-ctime1.$$" > > +testlink=3D"$TEST_DIR/unlink-ctime2.$$" > > + > > +rm -f $testfile $testlink > > +touch $testfile > > +ln $testfile $testlink > > + > > +time1=3D$(stat -c "%Z" $testfile) > > + > > +sleep 2 > > +unlink $testlink > > + > > +time2=3D$(stat -c "%Z" $testfile) > > + > > +unlink $testfile > > + > > +if [ $time1 -eq $time2 ]; then > > + echo "Target's ctime did not change after unlink!" > > +fi > > + > > +echo Silence is golden > > +status=3D0 > > +exit > > diff --git a/tests/generic/755.out b/tests/generic/755.out > > new file mode 100644 > > index 000000000000..7c9ea51cd298 > > --- /dev/null > > +++ b/tests/generic/755.out > > @@ -0,0 +1,2 @@ > > +QA output created by 755 > > +Silence is golden > >=20 > > --- > > base-commit: f5ada754d5838d29fd270257003d0d123a9d1cd2 > > change-id: 20240813-master-e3b46de630bd > >=20 > > Best regards, > > --=20 > > Jeff Layton > >=20 > >=20 >=20 >=20 --=20 Jeff Layton