Set mpol=interleave on dracut tmpfs.

- Closes #1347
- Closes #1348

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

CHANGELOG.md

@@ -43,6 +43,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## v4.5.8, unreleased
 
+### Changed
+
+- Interleave tmpfs across all available NUMA nodes. #1347, #1348
+
 ### Fixed
 
 - Return an error during `wwctl container import` if archive filename includes a colon. #1371

dracut/modules.d/90wwinit/load-wwinit.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 info "Mounting tmpfs at $NEWROOT"
-mount -t tmpfs ${wwinit_tmpfs_size_option} tmpfs "$NEWROOT"
+mount -t tmpfs -o mpol=interleave ${wwinit_tmpfs_size_option} tmpfs "$NEWROOT"
 
 for archive in "${wwinit_container}" "${wwinit_kmods}" "${wwinit_system}" "${wwinit_runtime}"
 do

overlays/wwinit/rootfs/init

@@ -39,7 +39,7 @@ elif test "$WWROOT" = "tmpfs"; then
     else
         echo "Setting up tmpfs root file system"
         mkdir /newroot
-        mount wwroot /newroot -t tmpfs
+        mount wwroot /newroot -t tmpfs -o mpol=interleave
         echo "Moving RAMFS to TMPFS"
         tar -cf - --exclude ./proc --exclude ./sys --exclude ./dev --exclude ./newroot . | tar -xf - -C /newroot
         mkdir /newroot/proc /newroot/dev /newroot/sys /newroot/run 2>/dev/null