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f2878a801c
Performance with direct I/O here is noticable better, so use it instead of buffered write whenever we can.
36 lines
964 B
Bash
36 lines
964 B
Bash
#!/usr/bin/env bash
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# Copyright (C) 2014 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# Testing calculation of snapshot space
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# https://bugzilla.redhat.com/show_bug.cgi?id=1035871
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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aux prepare_pvs 1
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get_devs
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vgcreate $SHARED -s 4K "$vg" "${DEVICES[@]}"
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lvcreate -aey -L1 -n $lv1 $vg
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# Snapshot should be large enough to handle any writes
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lvcreate -L2 -s $vg/$lv1 -n $lv2
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dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv2" bs=1M count=1 oflag=direct
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# Snapshot must not be 'I'nvalid here
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check lv_attr_bit state $vg/$lv2 "a"
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vgremove -f $vg
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