diff options
author | Omar Sandoval <osandov@fb.com> | 2018-05-09 23:21:55 -0700 |
---|---|---|
committer | Eryu Guan <guaneryu@gmail.com> | 2018-05-16 09:53:15 +0800 |
commit | 5c19a58f7d99567e2e664558f32fbacb11b169d3 (patch) | |
tree | eb67534139e8cbdb62bd85e768f4c36007400803 | |
parent | a82e9464ddfb3ed677e0080301adbab3dab47546 (diff) | |
download | xfstests-dev-5c19a58f7d99567e2e664558f32fbacb11b169d3.tar.gz |
btrfs: test ENOSPC caused by many orphan items
Btrfs has a bug where we can prematurely ENOSPC if we have lots of
orphaned files, i.e., deleted files which are still open. Add a test
which repeatedly creates and deletes a file while keeping all of the
file descriptors open. This should succeed but doesn't on Btrfs
without the fix.
[Eryu: use multi_open_unlink command to keep files open & unlinked
instead of shell scripts]
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
-rwxr-xr-x[-rw-r--r--] | tests/generic/479 | 0 | ||||
-rwxr-xr-x | tests/generic/488 | 62 | ||||
-rw-r--r-- | tests/generic/488.out | 2 | ||||
-rw-r--r-- | tests/generic/group | 1 |
4 files changed, 65 insertions, 0 deletions
diff --git a/tests/generic/479 b/tests/generic/479 index 7e4ba7d046..7e4ba7d046 100644..100755 --- a/tests/generic/479 +++ b/tests/generic/479 diff --git a/tests/generic/488 b/tests/generic/488 new file mode 100755 index 0000000000..225fbb4082 --- /dev/null +++ b/tests/generic/488 @@ -0,0 +1,62 @@ +#! /bin/bash +# FS QA Test 488 +# +# Test having many file descriptors referring to deleted files open. Regression +# test for patch "Btrfs: fix ENOSPC caused by orphan items reservations". +# +#----------------------------------------------------------------------- +# Copyright (c) 2018 Omar Sandoval. 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 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +. ./common/rc +. ./common/filter + +rm -f $seqres.full + +_supported_fs generic +_supported_os Linux +_require_scratch +_require_test_program "multi_open_unlink" + +_scratch_mkfs_sized $((1024 * 1024 * 1024)) >> $seqres.full 2>&1 +_scratch_mount + +test_file="$SCRATCH_MNT/$seq" + +ulimit -n $((16 * 1024)) +# ~10000 files on a 1 GB filesystem should be no problem. +$here/src/multi_open_unlink -f $SCRATCH_MNT/$seq -n 10000 -s 0 + +echo "Silence is golden" + +status=0 +exit diff --git a/tests/generic/488.out b/tests/generic/488.out new file mode 100644 index 0000000000..07c40c4a14 --- /dev/null +++ b/tests/generic/488.out @@ -0,0 +1,2 @@ +QA output created by 488 +Silence is golden diff --git a/tests/generic/group b/tests/generic/group index dc637c96c2..6266213e37 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -490,3 +490,4 @@ 485 auto quick insert 486 auto quick attr 487 auto quick +488 auto quick |