diff options
| author | Kinsey Ho <kinseyho@google.com> | 2023-12-27 14:12:02 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-01-05 10:17:44 -0800 |
| commit | 61dd3f246b3adaabff3241c586f2210ac91b05a4 (patch) | |
| tree | fc42e80cc23c1e05d514256dc1cc4c3cf4791817 /include/linux/mm_types.h | |
| parent | 71ce1ab54a505736786d9c5921e6c2718c7ec535 (diff) | |
mm/mglru: add CONFIG_LRU_GEN_WALKS_MMU
Add CONFIG_LRU_GEN_WALKS_MMU such that if disabled, the code that
walks page tables to promote pages into the youngest generation will
not be built.
Also improves code readability by adding two helper functions
get_mm_state() and get_next_mm().
Link: https://lkml.kernel.org/r/20231227141205.2200125-3-kinseyho@google.com
Signed-off-by: Kinsey Ho <kinseyho@google.com>
Co-developed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Tested-by: Donet Tom <donettom@linux.vnet.ibm.com>
Acked-by: Yu Zhao <yuzhao@google.com>
Cc: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/mm_types.h')
| -rw-r--r-- | include/linux/mm_types.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index a66534c78c4d..552fa2d11c57 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -958,7 +958,7 @@ struct mm_struct { */ unsigned long ksm_zero_pages; #endif /* CONFIG_KSM */ -#ifdef CONFIG_LRU_GEN +#ifdef CONFIG_LRU_GEN_WALKS_MMU struct { /* this mm_struct is on lru_gen_mm_list */ struct list_head list; @@ -973,7 +973,7 @@ struct mm_struct { struct mem_cgroup *memcg; #endif } lru_gen; -#endif /* CONFIG_LRU_GEN */ +#endif /* CONFIG_LRU_GEN_WALKS_MMU */ } __randomize_layout; /* @@ -1011,6 +1011,10 @@ struct lru_gen_mm_list { spinlock_t lock; }; +#endif /* CONFIG_LRU_GEN */ + +#ifdef CONFIG_LRU_GEN_WALKS_MMU + void lru_gen_add_mm(struct mm_struct *mm); void lru_gen_del_mm(struct mm_struct *mm); #ifdef CONFIG_MEMCG @@ -1036,7 +1040,7 @@ static inline void lru_gen_use_mm(struct mm_struct *mm) WRITE_ONCE(mm->lru_gen.bitmap, -1); } -#else /* !CONFIG_LRU_GEN */ +#else /* !CONFIG_LRU_GEN_WALKS_MMU */ static inline void lru_gen_add_mm(struct mm_struct *mm) { @@ -1060,7 +1064,7 @@ static inline void lru_gen_use_mm(struct mm_struct *mm) { } -#endif /* CONFIG_LRU_GEN */ +#endif /* CONFIG_LRU_GEN_WALKS_MMU */ struct vma_iterator { struct ma_state mas; |