[07/20] reflink: test changing sharers of a block while keeping refcount the same

Message ID	146612800634.25024.14778502538091640792.stgit@birch.djwong.org (mailing list archive)
State	Not Applicable
Headers	show Return-Path: <linux-btrfs-owner@kernel.org> Subject: [PATCH 07/20] reflink: test changing sharers of a block while keeping refcount the same From: "Darrick J. Wong" <darrick.wong@oracle.com> To: david@fromorbit.com, darrick.wong@oracle.com Cc: linux-btrfs@vger.kernel.org, fstests@vger.kernel.org, xfs@oss.sgi.com Date: Thu, 16 Jun 2016 18:46:46 -0700 Message-ID: <146612800634.25024.14778502538091640792.stgit@birch.djwong.org> In-Reply-To: <146612796204.25024.18254357523133394284.stgit@birch.djwong.org> References: <146612796204.25024.18254357523133394284.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk

diff --git a/tests/generic/925 b/tests/generic/925 new file mode 100755 index 0000000..9fa4ba9 --- /dev/null +++ b/tests/generic/925 @@ -0,0 +1,80 @@ +#! /bin/bash +# FS QA Test No. 925 +# +# Share an extent amongst a bunch of files such that the refcount +# stays the same while the rate of change of the set of owners is +# steadily increasing. For example, an extent of 32 blocks is owned +# by 32 files. At block 1, change one of the owners. At block 2, +# change 2 of the owners, and so on. +# +#----------------------------------------------------------------------- +# Copyright (c) 2016 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf $tmp.* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink + +echo "Format and mount" +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 + +testdir=$SCRATCH_MNT/test-$seq +mkdir $testdir + +blocks=64 +blksz=65536 + +echo "Initialize file" +_pwrite_byte 0x61 0 $((blocks * blksz)) $testdir/file >> $seqres.full + +echo "Share the file n-ways" +seq 1 $((blocks - 1)) | while read nr; do + _reflink_range $testdir/file 0 $testdir/file$nr.0 0 $((nr * blksz)) >> $seqres.full + seq $nr $((blocks - 1)) | while read nnr; do + _reflink_range $testdir/file $((nnr * blksz)) $testdir/file$nr.$nnr $((nnr * blksz)) $blksz >> $seqres.full + done +done +_scratch_cycle_mount + +echo "Check output" +md5sum $testdir/file $testdir/file*.0 | _filter_scratch + +# success, all done +status=0 +exit diff --git a/tests/generic/925.out b/tests/generic/925.out new file mode 100644 index 0000000..099d6d3 --- /dev/null +++ b/tests/generic/925.out @@ -0,0 +1,69 @@ +QA output created by 925 +Format and mount +Initialize file +Share the file n-ways +Check output +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-925/file +2d61aa54b58c2e94403fb092c3dbc027 SCRATCH_MNT/test-925/file1.0 +399c239a8d72b5b2beb15565cf14f6d6 SCRATCH_MNT/test-925/file10.0 +7f783291615a5db41ba33d6c50318095 SCRATCH_MNT/test-925/file11.0 +4feff1bdae53d042e572a5e240b1183f SCRATCH_MNT/test-925/file12.0 +ac2b0a907cd84c091c1cc36384246e42 SCRATCH_MNT/test-925/file13.0 +ff420a8abc25ff0a012638ddd9b81e6c SCRATCH_MNT/test-925/file14.0 +3eb1751bcb7cff809df2ec376e45fe6f SCRATCH_MNT/test-925/file15.0 +7202826a7791073fe2787f0c94603278 SCRATCH_MNT/test-925/file16.0 +7b0fea2a208aa4738d8b9433c7b8421d SCRATCH_MNT/test-925/file17.0 +c6b6ec99b28741ffb3be2d7ff361ad89 SCRATCH_MNT/test-925/file18.0 +d609dcbdc972b8cff16acd74414a8dc9 SCRATCH_MNT/test-925/file19.0 +81615449a98aaaad8dc179b3bec87f38 SCRATCH_MNT/test-925/file2.0 +d97ae5fdb25c4622d5a2f313460a2b96 SCRATCH_MNT/test-925/file20.0 +afae74f7a13edf57f43bab5da6e411d6 SCRATCH_MNT/test-925/file21.0 +0ed53c341d0154d68c336eaa9d05990d SCRATCH_MNT/test-925/file22.0 +ab20d0025b58cbf9fc49e436b7d7acef SCRATCH_MNT/test-925/file23.0 +5279106ed91359051fbdb61e87d5077d SCRATCH_MNT/test-925/file24.0 +9a8719c84c1a42d030fc6d700046eaf5 SCRATCH_MNT/test-925/file25.0 +d9b21a065727fd8118d493f7c62e7fb2 SCRATCH_MNT/test-925/file26.0 +d74ee01c55b2474f91a3723a01c83591 SCRATCH_MNT/test-925/file27.0 +ba7202bfc4b9cda564156562d8672a3f SCRATCH_MNT/test-925/file28.0 +1b3d697355ca662451eb12419cab8eef SCRATCH_MNT/test-925/file29.0 +998b4ba52f2940dc515001e75926b19f SCRATCH_MNT/test-925/file3.0 +6b2648f84c57f58786cf75ac06e37217 SCRATCH_MNT/test-925/file30.0 +c400b872b0fb3fb58920c4e570937a32 SCRATCH_MNT/test-925/file31.0 +de89461b64701958984c95d1bfb0065a SCRATCH_MNT/test-925/file32.0 +cac15c2eeaf1b63614469f675ec71c5f SCRATCH_MNT/test-925/file33.0 +ebd2d819d56725bd1a2a35ababd06cad SCRATCH_MNT/test-925/file34.0 +a26ebf37da9976dfd7c86b4271c59501 SCRATCH_MNT/test-925/file35.0 +11f61aaa1f5f726929c91c6d434edf72 SCRATCH_MNT/test-925/file36.0 +1f73d21c457843ea20048726d461648e SCRATCH_MNT/test-925/file37.0 +9ed53cefd1548008ed1948286e471233 SCRATCH_MNT/test-925/file38.0 +af5195351947da43e7a57f69086aa7d7 SCRATCH_MNT/test-925/file39.0 +c946b71bb69c07daf25470742c967e7c SCRATCH_MNT/test-925/file4.0 +f31ecd4106278b5fb1aeabdedd43036a SCRATCH_MNT/test-925/file40.0 +e8a8d1a0873e25697171ebb87125d794 SCRATCH_MNT/test-925/file41.0 +5920fd86bc7be6a0ef5d7ea283e16307 SCRATCH_MNT/test-925/file42.0 +8360c3c368143821045f9b7994ab8344 SCRATCH_MNT/test-925/file43.0 +6c76a6c9e2b039c82e62d985479f73ee SCRATCH_MNT/test-925/file44.0 +8b5c6cab2f0da5ba2d3b2d3ca205ca75 SCRATCH_MNT/test-925/file45.0 +b4ef05d705b8e99d8824d85e993bf8fa SCRATCH_MNT/test-925/file46.0 +0db1f2d5ad692ccd8941a8bc308cdba2 SCRATCH_MNT/test-925/file47.0 +6a11a8872b36343799a15617bea78cef SCRATCH_MNT/test-925/file48.0 +015ab57c35525eeb776308e14fe2e731 SCRATCH_MNT/test-925/file49.0 +17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-925/file5.0 +fbc6203955f9c6e9010f831971a073b2 SCRATCH_MNT/test-925/file50.0 +aae01cd767e508bdf2d01f647d10c4b8 SCRATCH_MNT/test-925/file51.0 +4d942a936328991bcd9821072ac0fd9e SCRATCH_MNT/test-925/file52.0 +b77f243bb207746743aeaafbdef4203a SCRATCH_MNT/test-925/file53.0 +9fc7f158bd2ded9df3965ef4fe2fa932 SCRATCH_MNT/test-925/file54.0 +36dff6091853c946411bc40fdae79e84 SCRATCH_MNT/test-925/file55.0 +82a2f6d28f1bff4ce7edc1a7a31b02cb SCRATCH_MNT/test-925/file56.0 +b0d123bf023332bba783abb5b68e4c98 SCRATCH_MNT/test-925/file57.0 +26b49b145b128c0abef0f92b3ccaf1d6 SCRATCH_MNT/test-925/file58.0 +b5ef5d86d6ef15a535ee95b8069d29c9 SCRATCH_MNT/test-925/file59.0 +cd3eccbf2f0126c4141740007ba70c3f SCRATCH_MNT/test-925/file6.0 +205cb48615014f6f2377345b62442609 SCRATCH_MNT/test-925/file60.0 +89691c001b3a3d5473081687ae519a18 SCRATCH_MNT/test-925/file61.0 +a040ce9774652bd00c3cbf493a006e00 SCRATCH_MNT/test-925/file62.0 +970b42855c15ee8caa824cd5e177759a SCRATCH_MNT/test-925/file63.0 +eb74da58c6e4f93b4bf82a62fef4ab93 SCRATCH_MNT/test-925/file7.0 +30c2557e8302a5beb290c71520d87f42 SCRATCH_MNT/test-925/file8.0 +6dc42f5ed1007a3e20d08af71e198cdc SCRATCH_MNT/test-925/file9.0 diff --git a/tests/generic/926 b/tests/generic/926 new file mode 100755 index 0000000..7dedc3f --- /dev/null +++ b/tests/generic/926 @@ -0,0 +1,94 @@ +#! /bin/bash +# FS QA Test No. 926 +# +# Make sure that the reference counting mechanism can handle the case +# where we share the first 1/4 of an extent with a file, share the +# last 1/4 of the extent with a second file, share the first half of +# the extent with N files, and share the second half of the extent +# with a different set of N files. The key point here is to test that +# we handle the case where a refcount extent record doesn't coincide +# exactly with the block mapping records. +# +#----------------------------------------------------------------------- +# Copyright (c) 2016 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf $tmp.* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink + +echo "Format and mount" +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 + +testdir=$SCRATCH_MNT/test-$seq +mkdir $testdir + +blocks=64 +blksz=65536 +nr=4 +halfway=$((blocks / 2 * blksz)) +quarter=$((blocks / 4 * blksz)) + +echo "Initialize file" +_pwrite_byte 0x61 0 $((blocks * blksz)) $testdir/file >> $seqres.full + +echo "Share the first half of the extent" +seq 1 $nr | while read nr; do + _reflink_range $testdir/file 0 $testdir/file$nr.0 0 $halfway >> $seqres.full +done + +echo "Share the last half of the extent" +seq 1 $nr | while read nr; do + _reflink_range $testdir/file $halfway $testdir/file$nr.1 0 $halfway >> $seqres.full +done + +echo "Share the first quarter of the extent" +_reflink_range $testdir/file 0 $testdir/file.2 0 $quarter >> $seqres.full + +echo "Share the last quarter of the extent" +_reflink_range $testdir/file $((quarter * 3)) $testdir/file.3 0 $quarter >> $seqres.full + +_scratch_cycle_mount + +echo "Check output" +md5sum $testdir/file $testdir/file* | _filter_scratch + +# success, all done +status=0 +exit diff --git a/tests/generic/926.out b/tests/generic/926.out new file mode 100644 index 0000000..d3e6b59 --- /dev/null +++ b/tests/generic/926.out @@ -0,0 +1,20 @@ +QA output created by 926 +Format and mount +Initialize file +Share the first half of the extent +Share the last half of the extent +Share the first quarter of the extent +Share the last quarter of the extent +Check output +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-926/file +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-926/file +7202826a7791073fe2787f0c94603278 SCRATCH_MNT/test-926/file.2 +7202826a7791073fe2787f0c94603278 SCRATCH_MNT/test-926/file.3 +de89461b64701958984c95d1bfb0065a SCRATCH_MNT/test-926/file1.0 +de89461b64701958984c95d1bfb0065a SCRATCH_MNT/test-926/file1.1 +de89461b64701958984c95d1bfb0065a SCRATCH_MNT/test-926/file2.0 +de89461b64701958984c95d1bfb0065a SCRATCH_MNT/test-926/file2.1 +de89461b64701958984c95d1bfb0065a SCRATCH_MNT/test-926/file3.0 +de89461b64701958984c95d1bfb0065a SCRATCH_MNT/test-926/file3.1 +de89461b64701958984c95d1bfb0065a SCRATCH_MNT/test-926/file4.0 +de89461b64701958984c95d1bfb0065a SCRATCH_MNT/test-926/file4.1 diff --git a/tests/generic/group b/tests/generic/group index 6fdf109..2bd40a1 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -356,3 +356,5 @@ 351 blockdev quick rw 923 auto quick clone 924 auto quick clone +925 auto quick clone +926 auto quick clone

[07/20] reflink: test changing sharers of a block while keeping refcount the same

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Patch