The patch titled Subject: mm/damon: creating kmem cache for damon regions by KMEM_CACHE() has been added to the -mm mm-unstable branch. Its filename is mm-damon-improve-damon_new_region-strategy-fix.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-improve-damon_new_region-strategy-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: Dawei Li <set_pte_at@xxxxxxxxxxx> Subject: mm/damon: creating kmem cache for damon regions by KMEM_CACHE() Date: Wed, 14 Sep 2022 00:21:58 +0800 Damon regions are dynamic objects which can be created and destroyed frequently, a dedicated slab cache is created by KMEM_CACHE(), as suggested by akpm. Link: https://lkml.kernel.org/r/Message-ID: Signed-off-by: Dawei Li <set_pte_at@xxxxxxxxxxx> Reviewed-by: SeongJae Park <sj@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/damon/core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/damon/core.c~mm-damon-improve-damon_new_region-strategy-fix +++ a/mm/damon/core.c @@ -1289,8 +1289,7 @@ bool damon_find_biggest_system_ram(unsig static int __init damon_init(void) { - damon_region_cache = kmem_cache_create("damon_region_cache", sizeof(struct damon_region), - 0, 0, NULL); + damon_region_cache = KMEM_CACHE(damon_region, 0); if (unlikely(!damon_region_cache)) { pr_err("creating damon_region_cache fails\n"); return -ENOMEM; _ Patches currently in -mm which might be from set_pte_at@xxxxxxxxxxx are mm-damon-improve-damon_new_region-strategy.patch mm-damon-improve-damon_new_region-strategy-fix.patch