From patchwork Tue Jun 18 00:50:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 13701613 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 36C7CEEA5; Tue, 18 Jun 2024 00:50:25 +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=1718671825; cv=none; b=oMKZ7eo8iILWaEou5cfRi9q2Xe/MoFPmuECI/ZM3vqzu9QP1Ec0Fxo2e9GAb7FVLmlA5LGpl2uPxFzmJM5rPLPc4SdFX0981PHyS6D7VHicL7GmTYcqnrA1pumXbbtF+gaP0ezp7RpEscsnydizhr0I3MqFLFJ12BL0pTZOEvqA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718671825; c=relaxed/simple; bh=PTS8KGIbOjHV0MWUtnWTjBYpC23r74kbpGfhKWqeRO4=; h=Date:Subject:From:To:Cc:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=YWBxSm92fYa6XNIGq33DPme6uQzQIOoDDNOnMeRiempj4/D9GKGwyJP66ppF4Aq5r3B/IMR0spAFjlCwnLKgpEMBF2Hp+Q/tZWaoT/DZCE4PAfcAwQO+QxtXX2h4zLyK8Z6FTilxkB8Q5rWUBEkg8MuB0IWHQVNbL3boFxu2TMg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TAkHIjMk; 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="TAkHIjMk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 03B49C2BD10; Tue, 18 Jun 2024 00:50:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718671825; bh=PTS8KGIbOjHV0MWUtnWTjBYpC23r74kbpGfhKWqeRO4=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=TAkHIjMkdZINyJH85juohFblI1/6f3cWKjxFNLLXjWaScCH/hb1PKJj0A0paQACk5 Wnzsz1iys20NOJFdWD8R9a7BD36yRSVO2aL3o6tmK8K7pi+LHyyRHzMR2I+5sOEpTf C73TMLN0FWytJ4ZQdcHCbhKzzY5YKUko3QvP0NW3dBLR7bQhSuk3l3yUJ1OJyc9Y65 ZmklNmHMncJ9CGfTQPA7eaE9SNXK008kOMUg9S80gh/RxlfzTfJXFejzfO4GwmOIsO OKHeuXgiG7XVH5V6k3Gb9bAWxHpwvBYJnBq4LK1x95Ouo4TKD+MiMcD1kIEZmLNXVx ctAe0YX28zK4Q== Date: Mon, 17 Jun 2024 17:50:24 -0700 Subject: [PATCH 04/11] populate: create hardlinks for parent pointers From: "Darrick J. Wong" To: djwong@kernel.org, zlang@redhat.com Cc: fstests@vger.kernel.org, guan@eryu.me, linux-xfs@vger.kernel.org, allison.henderson@oracle.com, catherine.hoang@oracle.com Message-ID: <171867145868.793846.6556224145030803204.stgit@frogsfrogsfrogs> In-Reply-To: <171867145793.793846.15869014995794244448.stgit@frogsfrogsfrogs> References: <171867145793.793846.15869014995794244448.stgit@frogsfrogsfrogs> User-Agent: StGit/0.19 Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Darrick J. Wong Create some hardlinked files so that we can exercise parent pointers. Signed-off-by: Darrick J. Wong Reviewed-by: Christoph Hellwig --- common/populate | 38 ++++++++++++++++++++++++++++++++++++++ src/popdir.pl | 11 +++++++++++ 2 files changed, 49 insertions(+) diff --git a/common/populate b/common/populate index 15f8055c2c..d80e78f386 100644 --- a/common/populate +++ b/common/populate @@ -464,6 +464,44 @@ _scratch_xfs_populate() { cp --reflink=always "${SCRATCH_MNT}/REFCOUNTBT" "${SCRATCH_MNT}/REFCOUNTBT2" fi + # Parent pointers + is_pptr="$(_xfs_has_feature "$SCRATCH_MNT" parent -v)" + if [ $is_pptr -gt 0 ]; then + echo "+ parent pointers" + + # Create a couple of parent pointers + __populate_create_dir "${SCRATCH_MNT}/PPTRS" 1 '' --hardlink --format "two_%d" + + # Create one xattr leaf block of parent pointers + nr="$((blksz * 2 / 16))" + __populate_create_dir "${SCRATCH_MNT}/PPTRS" ${nr} '' --hardlink --format "many%04d" + + # Create multiple xattr leaf blocks of large parent pointers + nr="$((blksz * 16 / 16))" + __populate_create_dir "${SCRATCH_MNT}/PPTRS" ${nr} '' --hardlink --format "y%0254d" + + # Create multiple paths to a file + local moof="${SCRATCH_MNT}/PPTRS/moofile" + touch "${moof}" + for ((i = 0; i < 4; i++)); do + mkdir -p "${SCRATCH_MNT}/PPTRS/SUB${i}" + ln "${moof}" "${SCRATCH_MNT}/PPTRS/SUB${i}/moofile" + done + + # Create parent pointers of various lengths + touch "${SCRATCH_MNT}/PPTRS/vlength" + local len_len + local tst + local fname + ln "${SCRATCH_MNT}/PPTRS/vlength" "${SCRATCH_MNT}/PPTRS/b" + for len in 32 64 96 128 160 192 224 250 255; do + len_len="${#len}" + tst="$(perl -e "print \"b\" x (${len} - (${len_len} + 1))")" + fname="v${tst}${len}" + ln "${SCRATCH_MNT}/PPTRS/vlength" "${SCRATCH_MNT}/PPTRS/${fname}" + done + fi + # Copy some real files (xfs tests, I guess...) echo "+ real files" test $fill -ne 0 && __populate_fill_fs "${SCRATCH_MNT}" 5 diff --git a/src/popdir.pl b/src/popdir.pl index e89095aafe..0104957a3c 100755 --- a/src/popdir.pl +++ b/src/popdir.pl @@ -17,6 +17,7 @@ GetOptions("start=i" => \$start, "dir=s" => \$dir, "remove!" => \$remove, "help!" => \$help, + "hardlink!" => \$hardlink, "verbose!" => \$verbose); @@ -35,6 +36,7 @@ Options: --format=str printf formatting string for file name ("%08d") --verbose verbose output --help this help screen + --hardlink hardlink subsequent files to the first one created EOF exit(1) unless defined $help; # otherwise... @@ -56,12 +58,21 @@ if ($file_pct < 0) { $file_pct = 100; } +if ($hardlink) { + $file_pct = 100; + $link_fname = sprintf($format, $start); +} + for ($i = $start; $i <= $end; $i += $incr) { $fname = sprintf($format, $i); if ($remove) { $verbose && print "rm $fname\n"; unlink($fname) or rmdir($fname) or die("unlink $fname"); + } elsif ($hardlink && $i > $start) { + # hardlink everything after the first file + $verbose && print "ln $link_fname $fname\n"; + link $link_fname, $fname; } elsif (($i % 100) < $file_pct) { # create a file $verbose && print "touch $fname\n";