resource-agents/RHEL-15301-1-exportfs-make-fsid-optional.patch

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From b806487ca758fce838c988767556007ecf66a6e3 Mon Sep 17 00:00:00 2001
From: Roger Zhou <zzhou@suse.com>
Date: Mon, 10 Apr 2023 18:08:56 +0800
Subject: [PATCH] exportfs: make the "fsid=" parameter optional
Based on feedback [1] from the kernel developer @neilbrown regarding the
NFS clustering use case, it has been determined that the fsid= parameter
is now considered optional and safe to omit.
[1] https://bugzilla.suse.com/show_bug.cgi?id=1201271#c49
"""
Since some time in 2007 NFS has used the UUID of a filesystem as the
primary identifier for that filesystem, rather than using the device
number. So from that time there should have been reduced need for the
"fsid=" option. Probably there are some filesystems that this didn't
work for. btrfs has been problematic at time, particularly when subvols
are exported. But for quite some years this has all "just worked" at
least for the major filesystems (ext4 xfs btrfs). [...] I would suggest
getting rid of the use of fsid= altogether. [...] I'm confident that it
was no longer an issue in SLE-12 and similarly not in SLE-15.
"""
---
heartbeat/exportfs | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/heartbeat/exportfs b/heartbeat/exportfs
index 2307a9e67b..435a19646b 100755
--- a/heartbeat/exportfs
+++ b/heartbeat/exportfs
@@ -82,7 +82,7 @@ The directory or directories to export.
<content type="string" />
</parameter>
-<parameter name="fsid" unique="0" required="1">
+<parameter name="fsid" unique="0" required="0">
<longdesc lang="en">
The fsid option to pass to exportfs. This can be a unique positive
integer, a UUID (assuredly sans comma characters), or the special string
@@ -185,6 +185,8 @@ exportfs_methods() {
reset_fsid() {
CURRENT_FSID=$OCF_RESKEY_fsid
+ [ -z "$CURRENT_FSID" ] && CURRENT_FSID=`echo "$OCF_RESKEY_options" | sed -n 's/.*fsid=\([^,]*\).*/\1/p'`
+ echo $CURRENT_FSID
}
bump_fsid() {
CURRENT_FSID=$((CURRENT_FSID+1))
@@ -322,7 +324,7 @@ export_one() {
if echo "$opts" | grep fsid >/dev/null; then
#replace fsid in options list
opts=`echo "$opts" | sed "s,fsid=[^,]*,fsid=$(get_fsid),g"`
- else
+ elif [ -n "$OCF_RESKEY_fsid" ]; then
#tack the fsid option onto our options list.
opts="${opts}${sep}fsid=$(get_fsid)"
fi
@@ -448,8 +450,8 @@ exportfs_validate_all ()
ocf_exit_reason "$OCF_RESKEY_fsid cannot contain a comma"
return $OCF_ERR_CONFIGURED
fi
- if [ $NUMDIRS -gt 1 ] &&
- ! ocf_is_decimal "$OCF_RESKEY_fsid"; then
+ if [ $NUMDIRS -gt 1 ] && [ -n "$(reset_fsid)" ] &&
+ ! ocf_is_decimal "$(reset_fsid)"; then
ocf_exit_reason "use integer fsid when exporting multiple directories"
return $OCF_ERR_CONFIGURED
fi
@@ -485,6 +487,6 @@ done
OCF_RESKEY_directory="${directories%% }"
NUMDIRS=`echo "$OCF_RESKEY_directory" | wc -w`
-OCF_REQUIRED_PARAMS="directory fsid clientspec"
+OCF_REQUIRED_PARAMS="directory clientspec"
OCF_REQUIRED_BINARIES="exportfs"
ocf_rarun $*