The patch titled
Subject: zsmalloc: implement writeback mechanism for zsmalloc (fix)
has been added to the -mm mm-unstable branch. Its filename is
zsmalloc-implement-writeback-mechanism-for-zsmalloc-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zsmalloc-implement-writeback-mechanism-for-zsmalloc-fix.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Nhat Pham <nphamcs@xxxxxxxxx>
Subject: zsmalloc: implement writeback mechanism for zsmalloc (fix)
Date: Wed, 23 Nov 2022 11:17:03 -0800
Use get_first_page(), and add cond_resched() in retry loop.
Link: https://lkml.kernel.org/r/20221123191703.2902079-3-nphamcs@xxxxxxxxx
Signed-off-by: Nhat Pham <nphamcs@xxxxxxxxx>
Suggested-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/zsmalloc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/mm/zsmalloc.c~zsmalloc-implement-writeback-mechanism-for-zsmalloc-fix
+++ a/mm/zsmalloc.c
@@ -2509,12 +2509,13 @@ static int zs_reclaim_page(struct zs_poo
remove_zspage(class, zspage, fullness);
spin_unlock(&pool->lock);
+ cond_resched();
/* Lock backing pages into place */
lock_zspage(zspage);
obj_idx = 0;
- page = zspage->first_page;
+ page = get_first_page(zspage);
while (1) {
handle = find_alloced_obj(class, page, &obj_idx);
if (!handle) {
_
Patches currently in -mm which might be from nphamcs@xxxxxxxxx are
zsmalloc-consolidate-zs_pools-migrate_lock-and-size_classs-locks.patch
zsmalloc-add-a-lru-to-zs_pool-to-keep-track-of-zspages-in-lru-order.patch
zsmalloc-add-a-lru-to-zs_pool-to-keep-track-of-zspages-in-lru-order-fix.patch
zsmalloc-add-zpool_ops-field-to-zs_pool-to-store-evict-handlers.patch
zsmalloc-implement-writeback-mechanism-for-zsmalloc.patch
zsmalloc-implement-writeback-mechanism-for-zsmalloc-fix.patch
