The patch titled Subject: mm-khugepaged-recalculate-min_free_kbytes-after-memory-hotplug-as-expected-by-khugepaged-v5 has been added to the -mm tree. Its filename is mm-khugepaged-recalculate-min_free_kbytes-after-memory-hotplug-as-expected-by-khugepaged-v5.patch

This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-khugepaged-recalculate-min_free... and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-khugepaged-recalculate-min_free...

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------------------------------------------------------ From: Vijay Balakrishna vijayb@linux.microsoft.com Subject: mm-khugepaged-recalculate-min_free_kbytes-after-memory-hotplug-as-expected-by-khugepaged-v5

made changes to move khugepaged_min_free_kbytes_update into init_per_zone_wmark_min and rested changes

Link: https://lkml.kernel.org/r/1601398153-5517-1-git-send-email-vijayb@linux.micr... Fixes: f000565adb77 ("thp: set recommended min free kbytes") Signed-off-by: Vijay Balakrishna vijayb@linux.microsoft.com Reviewed-by: Pavel Tatashin pasha.tatashin@soleen.com Acked-by: Michal Hocko mhocko@suse.com Cc: Allen Pais apais@microsoft.com Cc: Andrea Arcangeli aarcange@redhat.com Cc: "Kirill A. Shutemov" kirill.shutemov@linux.intel.com Cc: Oleg Nesterov oleg@redhat.com Cc: Song Liu songliubraving@fb.com Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

mm/memory_hotplug.c | 3 --- mm/page_alloc.c | 3 +++ 2 files changed, 3 insertions(+), 3 deletions(-)

--- a/mm/memory_hotplug.c~mm-khugepaged-recalculate-min_free_kbytes-after-memory-hotplug-as-expected-by-khugepaged-v5 +++ a/mm/memory_hotplug.c @@ -36,7 +36,6 @@ #include <linux/memblock.h> #include <linux/compaction.h> #include <linux/rmap.h> -#include <linux/khugepaged.h>

#include <asm/tlbflush.h>

@@ -858,7 +857,6 @@ int __ref online_pages(unsigned long pfn zone_pcp_update(zone);

init_per_zone_wmark_min(); - khugepaged_min_free_kbytes_update();

kswapd_run(nid); kcompactd_run(nid); @@ -1617,7 +1615,6 @@ static int __ref __offline_pages(unsigne pgdat_resize_unlock(zone->zone_pgdat, &flags);

init_per_zone_wmark_min(); - khugepaged_min_free_kbytes_update();

if (!populated_zone(zone)) { zone_pcp_reset(zone); --- a/mm/page_alloc.c~mm-khugepaged-recalculate-min_free_kbytes-after-memory-hotplug-as-expected-by-khugepaged-v5 +++ a/mm/page_alloc.c @@ -69,6 +69,7 @@ #include <linux/nmi.h> #include <linux/psi.h> #include <linux/padata.h> +#include <linux/khugepaged.h>

#include <asm/sections.h> #include <asm/tlbflush.h> @@ -7891,6 +7892,8 @@ int __meminit init_per_zone_wmark_min(vo setup_min_slab_ratio(); #endif

+ khugepaged_min_free_kbytes_update(); + return 0; } postcore_initcall(init_per_zone_wmark_min) _

Patches currently in -mm which might be from vijayb@linux.microsoft.com are

mm-khugepaged-recalculate-min_free_kbytes-after-memory-hotplug-as-expected-by-khugepaged.patch mm-khugepaged-recalculate-min_free_kbytes-after-memory-hotplug-as-expected-by-khugepaged-v5.patch