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From 8d25da64ab9dee8545a0c52f7db08213a03ea106 Mon Sep 17 00:00:00 2001
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From: Oyvind Albrigtsen <oalbrigt@redhat.com>
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Date: Tue, 28 Feb 2017 15:46:40 +0100
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Subject: [PATCH] LVM: add check_writethrough parameter
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---
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heartbeat/LVM | 19 +++++++++++++++++++
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1 file changed, 19 insertions(+)
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diff --git a/heartbeat/LVM b/heartbeat/LVM
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index 90a900b..5b265f5 100755
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--- a/heartbeat/LVM
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+++ b/heartbeat/LVM
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@@ -29,6 +29,8 @@
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: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
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. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
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+OCF_RESKEY_check_writethrough_default="false"
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+
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#######################################################################
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@@ -106,6 +108,14 @@ logical volumes.
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<content type="string" default="false" />
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</parameter>
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+<parameter name="check_writethrough" unique="0" required="0">
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+<longdesc lang="en">
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+If set to true, check if cache_mode is set to writethrough.
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+</longdesc>
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+<shortdesc lang="en">Check if cache_mode is set to writethrough</shortdesc>
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+<content type="string" default="${OCF_RESKEY_check_writethrough_default}" />
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+</parameter>
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+
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</parameters>
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<actions>
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@@ -583,6 +593,13 @@ LVM_validate_all() {
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exit $OCF_ERR_GENERIC
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fi
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+ if ocf_is_true "$OCF_RESKEY_check_writethrough"; then
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+ if ! lvs --noheadings -o cache_mode "$OCF_RESKEY_volgrpname" | grep -q "writethrough"; then
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+ ocf_exit_reason "LVM cache is not in writethrough mode."
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+ exit $OCF_ERR_CONFIGURED
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+ fi
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+ fi
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+
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##
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# If exclusive activation is not enabled, then
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# further checking of proper setup is not necessary
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@@ -690,6 +707,8 @@ if [ -n "$OCF_RESKEY_tag" ]; then
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OUR_TAG=$OCF_RESKEY_tag
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fi
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+: ${OCF_RESKEY_check_writethrough=${OCF_RESKEY_check_writethrough_default}}
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+
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# What kind of method was invoked?
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case "$1" in
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