The patch titled
Subject: zsmalloc: remove unnecessary insertion/removal of zspage in compaction
has been removed from the -mm tree. Its filename was
zsmalloc-remove-unnecessary-insertion-removal-of-zspage-in-compaction.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Minchan Kim <minchan@xxxxxxxxxx>
Subject: zsmalloc: remove unnecessary insertion/removal of zspage in compaction
In putback_zspage, we don't need to insert a zspage into list of zspage
in size_class again to just fix fullness group. We could do directly
without reinsertion so we could save some instuctions.
Reported-by: Heesub Shin <heesub.shin@xxxxxxxxxxx>
Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Nitin Gupta <ngupta@xxxxxxxxxx>
Cc: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Cc: Dan Streetman <ddstreet@xxxxxxxx>
Cc: Seth Jennings <sjennings@xxxxxxxxxxxxxx>
Cc: Ganesh Mahendran <opensource.ganesh@xxxxxxxxx>
Cc: Luigi Semenzato <semenzato@xxxxxxxxxx>
Cc: Gunho Lee <gunho.lee@xxxxxxx>
Cc: Juneho Choi <juno.choi@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/zsmalloc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -puN mm/zsmalloc.c~zsmalloc-remove-unnecessary-insertion-removal-of-zspage-in-compaction mm/zsmalloc.c
--- a/mm/zsmalloc.c~zsmalloc-remove-unnecessary-insertion-removal-of-zspage-in-compaction
+++ a/mm/zsmalloc.c
@@ -1678,14 +1678,14 @@ static struct page *alloc_target_page(st
static void putback_zspage(struct zs_pool *pool, struct size_class *class,
struct page *first_page)
{
- int class_idx;
enum fullness_group fullness;
BUG_ON(!is_first_page(first_page));
- get_zspage_mapping(first_page, &class_idx, &fullness);
+ fullness = get_fullness_group(first_page);
insert_zspage(first_page, class, fullness);
- fullness = fix_fullness_group(class, first_page);
+ set_zspage_mapping(first_page, class->index, fullness);
+
if (fullness == ZS_EMPTY) {
zs_stat_dec(class, OBJ_ALLOCATED, get_maxobj_per_zspage(
class->size, class->pages_per_zspage));
_
Patches currently in -mm which might be from minchan@xxxxxxxxxx are
origin.patch
mm-vmscan-fix-the-page-state-calculation-in-too_many_isolated.patch
mm-page_isolation-check-pfn-validity-before-access.patch
x86-add-pmd_-for-thp.patch
x86-add-pmd_-for-thp-fix.patch
sparc-add-pmd_-for-thp.patch
sparc-add-pmd_-for-thp-fix.patch
powerpc-add-pmd_-for-thp.patch
arm-add-pmd_mkclean-for-thp.patch
arm64-add-pmd_-for-thp.patch
mm-support-madvisemadv_free.patch
mm-support-madvisemadv_free-fix.patch
mm-support-madvisemadv_free-fix-2.patch
mm-dont-split-thp-page-when-syscall-is-called.patch
mm-dont-split-thp-page-when-syscall-is-called-fix.patch
mm-dont-split-thp-page-when-syscall-is-called-fix-2.patch
mm-free-swp_entry-in-madvise_free.patch
mm-move-lazy-free-pages-to-inactive-list.patch
mm-move-lazy-free-pages-to-inactive-list-fix.patch
mm-move-lazy-free-pages-to-inactive-list-fix-fix.patch
mm-move-lazy-free-pages-to-inactive-list-fix-fix-fix.patch
zram-cosmetic-zram_attr_ro-code-formatting-tweak.patch
zram-use-idr-instead-of-zram_devices-array.patch
zram-factor-out-device-reset-from-reset_store.patch
zram-reorganize-code-layout.patch
zram-add-dynamic-device-add-remove-functionality.patch
zram-add-dynamic-device-add-remove-functionality-fix.patch
zram-remove-max_num_devices-limitation.patch
zram-report-every-added-and-removed-device.patch
zram-trivial-correct-flag-operations-comment.patch
zram-return-zram-device_id-value-from-zram_add.patch
zram-introduce-automatic-device_id-generation.patch
zram-introduce-automatic-device_id-generation-fix.patch
zram-do-not-let-user-enforce-new-device-dev_id.patch
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