backport speed multipatch scan patches from mainline

This commit is contained in:
volcanodragon 2022-11-03 10:36:11 +08:00
parent d34b80b471
commit 2186b489fe
3 changed files with 169 additions and 1 deletions

View File

@ -0,0 +1,33 @@
From e680e840140d19cb3419ff92595bc2c91de3368a Mon Sep 17 00:00:00 2001
From: Douglas Gilbert <dgilbert@interlog.com>
Date: Mon, 26 Sep 2022 21:41:45 +0000
Subject: [PATCH 1/2] rescan-scsi-bus.sh speed testonline()
speed testonline() function when
peripheral_qualifier != 0 in the standard INQUIRY
response. See:
https://github.com/doug-gilbert/sg3_utils/issues/24
git-svn-id: https://svn.bingwo.ca/repos/sg3_utils/trunk@972 6180dd3e-e324-4e3e-922d-17de1ae2f315
Conflict: Reserve changes about rescan-scsi-bus only
---
scripts/rescan-scsi-bus.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/rescan-scsi-bus.sh b/scripts/rescan-scsi-bus.sh
index 67dccf3..0e7697b 100755
--- a/scripts/rescan-scsi-bus.sh
+++ b/scripts/rescan-scsi-bus.sh
@@ -276,7 +276,7 @@ testonline ()
# Handle in progress of becoming ready and unit attention
while [ $RC = 2 -o $RC = 6 ] && [ $ctr -le 30 ] ; do
- if [ $RC = 2 ] && [ "$RMB" != "1" ] ; then
+ if [ $RC = 2 ] && [ "$RMB" != "1" ] && [ sg_inq /dev/$SGDEV | grep -q -i "PQual=0" ] ; then
echo -n "."
let LN+=1
sleep 1
--
2.35.3

View File

@ -0,0 +1,130 @@
From fe62f3e9ce96927bf9bcfb19b33447b54aafdc1f Mon Sep 17 00:00:00 2001
From: Douglas Gilbert <dgilbert@interlog.com>
Date: Fri, 30 Sep 2022 08:58:39 +0000
Subject: [PATCH 2/2] rescan-scsi-bus: speed large multipath scans
Speed multipath scans with many LUNs by caching multipath
LUN info in temporary file, see:
https://github.com/doug-gilbert/sg3_utils/issues/22
Fix small bug in last commit, see:
https://github.com/doug-gilbert/sg3_utils/issues/24
git-svn-id: https://svn.bingwo.ca/repos/sg3_utils/trunk@973 6180dd3e-e324-4e3e-922d-17de1ae2f315
Conflict: reserve changes about rescan-scsi-bus only
---
scripts/rescan-scsi-bus.sh | 57 ++++++++++++++++++++++++++------------
1 file changed, 40 insertions(+), 17 deletions(-)
diff --git a/scripts/rescan-scsi-bus.sh b/scripts/rescan-scsi-bus.sh
index 0e7697b..7508dba 100755
--- a/scripts/rescan-scsi-bus.sh
+++ b/scripts/rescan-scsi-bus.sh
@@ -6,6 +6,7 @@
VERSION="20180615"
SCAN_WILD_CARD=4294967295
+TMPLUNINFOFILE="/tmp/rescan-scsi-mpath-info.txt"
setcolor ()
{
@@ -276,7 +277,7 @@ testonline ()
# Handle in progress of becoming ready and unit attention
while [ $RC = 2 -o $RC = 6 ] && [ $ctr -le 30 ] ; do
- if [ $RC = 2 ] && [ "$RMB" != "1" ] && [ sg_inq /dev/$SGDEV | grep -q -i "PQual=0" ] ; then
+ if [ $RC = 2 ] && [ "$RMB" != "1" ] && sg_inq /dev/$SGDEV | grep -q -i "PQual=0" ; then
echo -n "."
let LN+=1
sleep 1
@@ -777,6 +778,33 @@ searchexisting()
done
}
+getallmultipathinfo()
+{
+ local mp=
+ local uuid=
+ local dmtmp=
+ local maj_min=
+ local tmpfile=
+
+ truncate -s 0 $TMPLUNINFOFILE
+ for mp in $($DMSETUP ls --target=multipath | cut -f 1) ; do
+ [ "$mp" = "No" ] && break;
+ maj_min=$($DMSETUP status "$mp" | cut -d " " -f14)
+ if [ ! -L /dev/mapper/${mp} ]; then
+ echo "softlink /dev/mapper/${mp} not available."
+ continue
+ fi
+ local ret=$(readlink /dev/mapper/$mp 2>/dev/null)
+ if [[ $? -ne 0 || -z "$ret" ]]; then
+ echo "readlink /dev/mapper/$mp failed. check multipath status."
+ continue
+ fi
+ dmtmp=$(basename $ret)
+ uuid=$(cut -f2 -d- "/sys/block/$dmtmp/dm/uuid")
+ echo "$mp $maj_min $dmtmp $uuid" >> $TMPLUNINFOFILE
+ done
+}
+
# Go through all of the existing devices and figure out any that have been remapped
findremapped()
{
@@ -815,6 +843,8 @@ findremapped()
udevadm_settle 2>&1 /dev/null
echo "Done"
+ getallmultipathinfo
+
# See what changed and reload the respective multipath device if applicable
while read -r hctl sddev id_serial_old ; do
remapped=0
@@ -945,7 +975,6 @@ findmultipath()
local dev="$1"
local find_mismatch="$2"
local mp=
- local mp2=
local found_dup=0
local maj_min=
@@ -955,27 +984,21 @@ findmultipath()
fi
maj_min=$(cat "/sys/block/$dev/dev")
- for mp in $($DMSETUP ls --target=multipath | cut -f 1) ; do
- [ "$mp" = "No" ] && break;
- if "$DMSETUP" status "$mp" | grep -q " $maj_min "; then
- # With two arguments, look up current uuid from sysfs
- # if it doesn't match what was passed, this multipath
- # device is not updated, so this is a remapped LUN
- if [ -n "$find_mismatch" ] ; then
- mp2=$($MULTIPATH -l "$mp" | egrep -o "dm-[0-9]+")
- mp2=$(cut -f2 -d- "/sys/block/$mp2/dm/uuid")
- if [ "$find_mismatch" != "$mp2" ] ; then
- addmpathtolist "$mp"
- found_dup=1
- fi
- continue
+ mp=$(cat $TMPLUNINFOFILE | grep -w "$maj_min" | cut -d " " -f1)
+ if [ -n "$mp" ]; then
+ if [ -n "$find_mismatch" ] ; then
+ uuid=$(cat $TMPLUNINFOFILE | grep -w "$maj_min" | cut -d " " -f4)
+ if [ "$find_mismatch" != "$uuid" ] ; then
+ addmpathtolist "$mp"
+ found_dup=1
fi
+ else
# Normal mode: Find the first multipath with the sdev
# and add it to the list
addmpathtolist "$mp"
return
fi
- done
+ fi
# Return 1 to signal that a duplicate was found to the calling function
if [ $found_dup -eq 1 ] ; then
--
2.35.3

View File

@ -1,6 +1,6 @@
Name: sg3_utils
Version: 1.47
Release: 2
Release: 3
Summary: Utilities that send SCSI commands to devices.
License: GPL-2.0-or-later AND BSD
URL: http://sg.danny.cz/sg/sg3_utils.html
@ -14,6 +14,8 @@ Patch4: 0004-sg3_utils-rescan-scsi-bus-list-all-LUNs-in-one-line.patch
Patch5: 0005-rescan-scsi-bus.sh-apply-fix-for-r-from-https-github.patch
Patch6: 0006-rescan-scsi-bus-sgdevice26-do-not-traverse-sg-class-.patch
Patch7: 0007-rescan-scsi-bus.sh-add-option-no-lip-scan.patch
Patch8: 0008-rescan-scsi-bus.sh-speed-testonline.patch
Patch9: 0009-rescan-scsi-bus-speed-large-multipath-scans.patch
Provides: %{name}-libs
Obsoletes: %{name}-libs
@ -77,6 +79,9 @@ rm -rf $RPM_BUILD_ROOT/%{_libdir}/*.la
%{_mandir}/man8/*
%changelog
* Thu Nov 3 2022 volcanodragon <linfeilong@huawei.com> - 1.47-3
- backport speed multipath scan patches from mainline
* Fri Sep 2 2022 Wenchao Hao <haowenchao@huawei.com> - 1.47-2
- backport rescan-scsi-bus patches from mainline