c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2024-12-25 18:59:33 +03:00
Code Issues Packages Projects Releases Wiki Activity

initramfs: Set elevator=noop on the rpool's disks

Browse Source 
ZFS already sets elevator=noop for wholedisk vdevs (for all pools), but
typical root-on-ZFS installations use partitions.  This sets
elevator=noop on the disks in the root pool.

Ubuntu 16.04 and 16.10 had this.  It was lost in 17.04 due to Debian
switching to this upstream initramfs script.

Signed-off-by: Richard Laager <rlaager@wiktel.com>
This commit is contained in:
Richard Laager 2017-11-01 21:54:56 -05:00
parent 11b9dcfb2d
commit 4fc411f7a3
1 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
contrib/initramfs/scripts/zfs
View File

@ -883,6 +883,24 @@ mountroot()
/bin/sh
fi
# Set elevator=noop on the root pool's vdevs' disks. ZFS already
# does this for wholedisk vdevs (for all pools), so this is only
# important for partitions.
"${ZPOOL}" status -L "${ZFS_RPOOL}" 2> /dev/null |
awk '/^\t / && !/(mirror|raidz)/ {
dev=$1;
sub(/[0-9]+$/, "", dev);
print dev
}' |
while read i
do
if [ -e "/sys/block/$i/queue/scheduler" ]
then
echo noop > "/sys/block/$i/queue/scheduler"
fi
done
# ----------------------------------------------------------------
# P R E P A R E R O O T F I L E S Y S T E M