The patch titled
Subject: zswap-do-not-shrink-if-cgroup-may-not-zswap-fix
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
zswap-do-not-shrink-if-cgroup-may-not-zswap-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zswap-do-not-shrink-if-cgroup-may-not-zswap-fix.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: zswap-do-not-shrink-if-cgroup-may-not-zswap-fix
Date: Thu Jun 1 01:17:06 PM PDT 2023
fix return of unintialized value
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202306011435.2BxsHFUE-lkp@xxxxxxxxx/
Cc: Dan Streetman <ddstreet@xxxxxxxx>
Cc: Domenico Cerasuolo <cerasuolodomenico@xxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Nhat Pham <nphamcs@xxxxxxxxx>
Cc: Seth Jennings <sjenning@xxxxxxxxxx>
Cc: Vitaly Wool <vitaly.wool@xxxxxxxxxxxx>
Cc: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/zswap.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/mm/zswap.c~zswap-do-not-shrink-if-cgroup-may-not-zswap-fix
+++ a/mm/zswap.c
@@ -1180,8 +1180,10 @@ static int zswap_frontswap_store(unsigne
* local cgroup limits.
*/
objcg = get_obj_cgroup_from_page(page);
- if (objcg && !obj_cgroup_may_zswap(objcg))
+ if (objcg && !obj_cgroup_may_zswap(objcg)) {
+ ret = -ENOSPC;
goto reject;
+ }
/* reclaim space if needed */
if (zswap_is_full()) {
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
zswap-do-not-shrink-if-cgroup-may-not-zswap-fix.patch
mm-compaction-optimize-compact_memory-to-comply-with-the-admin-guide-fix.patch
mm-page_owner-add-page_owner_stacks-file-to-print-out-only-stacks-and-their-counte-fix.patch
mm-page_owner-add-page_owner_stacks-file-to-print-out-only-stacks-and-their-counte-fix-fix.patch
mmpage_owner-filter-out-stacks-by-a-threshold-counter-fix.patch
mm-mlock-rename-mlock_future_check-to-mlock_future_ok.patch
mm-zswap-multiple-zpools-support-fix.patch
fork-optimize-memcg_charge_kernel_stack-a-bit-fix.patch
squashfs-cache-partial-compressed-blocks-fix.patch
squashfs-cache-partial-compressed-blocks-fix-3-fix.patch
init-add-bdev-fs-printk-if-mount_block_root-failed-fix.patch
kexec-add-helper-__crash_shrink_memory-fix.patch
