struct address_space;
-#define USE_SPLIT_PTLOCKS (NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS)
+#define USE_SPLIT_PTE_PTLOCKS (NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS)
+#define USE_SPLIT_PMD_PTLOCKS (USE_SPLIT_PTE_PTLOCKS && \
+ IS_ENABLED(CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK))
/*
* Each physical page in the system has a struct page associated with
struct rcu_head rcu_head; /* Used by SLAB
* when destroying via RCU
*/
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && USE_SPLIT_PMD_PTLOCKS
+ pgtable_t pmd_huge_pte; /* protected by page->ptl */
+#endif
};
/* Remainder is not double word aligned */
* indicates order in the buddy
* system if PG_buddy is set.
*/
-#if USE_SPLIT_PTLOCKS
+#if USE_SPLIT_PTE_PTLOCKS
+#if BLOATED_SPINLOCKS
+ spinlock_t *ptl;
+#else
spinlock_t ptl;
+#endif
#endif
struct kmem_cache *slab_cache; /* SL[AU]B: Pointer to slab */
struct page *first_page; /* Compound tail pages */
void *shadow;
#endif
-#ifdef LAST_NID_NOT_IN_PAGE_FLAGS
- int _last_nid;
+#ifdef LAST_CPUPID_NOT_IN_PAGE_FLAGS
+ int _last_cpupid;
#endif
}
/*
NR_MM_COUNTERS
};
-#if USE_SPLIT_PTLOCKS && defined(CONFIG_MMU)
+#if USE_SPLIT_PTE_PTLOCKS && defined(CONFIG_MMU)
#define SPLIT_RSS_COUNTING
/* per-thread cached information, */
struct task_rss_stat {
int events; /* for synchronization threshold */
int count[NR_MM_COUNTERS];
};
-#endif /* USE_SPLIT_PTLOCKS */
+#endif /* USE_SPLIT_PTE_PTLOCKS */
struct mm_rss_stat {
atomic_long_t count[NR_MM_COUNTERS];
};
+struct kioctx_table;
struct mm_struct {
struct vm_area_struct * mmap; /* list of VMAs */
struct rb_root mm_rb;
pgd_t * pgd;
atomic_t mm_users; /* How many users with user space? */
atomic_t mm_count; /* How many references to "struct mm_struct" (users count as 1) */
+ atomic_long_t nr_ptes; /* Page table pages */
int map_count; /* number of VMAs */
spinlock_t page_table_lock; /* Protects page tables and some counters */
unsigned long exec_vm; /* VM_EXEC & ~VM_WRITE */
unsigned long stack_vm; /* VM_GROWSUP/DOWN */
unsigned long def_flags;
- unsigned long nr_ptes; /* Page table pages */
unsigned long start_code, end_code, start_data, end_data;
unsigned long start_brk, brk, start_stack;
unsigned long arg_start, arg_end, env_start, env_end;
struct core_state *core_state; /* coredumping support */
#ifdef CONFIG_AIO
- spinlock_t ioctx_lock;
- struct hlist_head ioctx_list;
+ spinlock_t ioctx_lock;
+ struct kioctx_table __rcu *ioctx_table;
#endif
#ifdef CONFIG_MM_OWNER
/*
#ifdef CONFIG_MMU_NOTIFIER
struct mmu_notifier_mm *mmu_notifier_mm;
#endif
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
pgtable_t pmd_huge_pte; /* protected by page_table_lock */
#endif
#ifdef CONFIG_CPUMASK_OFFSTACK
*/
unsigned long numa_next_scan;
- /* numa_next_reset is when the PTE scanner period will be reset */
- unsigned long numa_next_reset;
-
/* Restart point for scanning and setting pte_numa */
unsigned long numa_scan_offset;
/* numa_scan_seq prevents two threads setting pte_numa */
int numa_scan_seq;
-
- /*
- * The first node a task was scheduled on. If a task runs on
- * a different node than Make PTE Scan Go Now.
- */
- int first_nid;
#endif
struct uprobes_state uprobes_state;
};
-/* first nid will either be a valid NID or one of these values */
-#define NUMA_PTE_SCAN_INIT -1
-#define NUMA_PTE_SCAN_ACTIVE -2
-
static inline void mm_init_cpumask(struct mm_struct *mm)
{
#ifdef CONFIG_CPUMASK_OFFSTACK