diff options
Diffstat (limited to 'include/linux/vmalloc.h')
| -rw-r--r-- | include/linux/vmalloc.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 3bff87a25a42..bad3ea4ded8e 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -4,6 +4,7 @@ #include <linux/spinlock.h> #include <linux/init.h> #include <linux/list.h> +#include <linux/llist.h> #include <asm/page.h> /* pgprot_t */ #include <linux/rbtree.h> @@ -18,6 +19,8 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */ #define VM_UNINITIALIZED 0x00000020 /* vm_struct is not fully initialized */ #define VM_NO_GUARD 0x00000040 /* don't add guard page */ #define VM_KASAN 0x00000080 /* has allocated kasan shadow memory */ +#define VM_LOWMEM 0x00000100 /* Tracking of direct mapped lowmem */ + /* bits [20..32] reserved for arch specific ioremap internals */ /* @@ -45,7 +48,7 @@ struct vmap_area { unsigned long flags; struct rb_node rb_node; /* address sorted rbtree */ struct list_head list; /* address sorted list */ - struct list_head purge_list; /* "lazy purge" list */ + struct llist_node purge_list; /* "lazy purge" list */ struct vm_struct *vm; struct rcu_head rcu_head; }; @@ -81,6 +84,7 @@ extern void *__vmalloc_node_range(unsigned long size, unsigned long align, const void *caller); extern void vfree(const void *addr); +extern void vfree_atomic(const void *addr); extern void *vmap(struct page **pages, unsigned int count, unsigned long flags, pgprot_t prot); @@ -158,6 +162,13 @@ extern long vwrite(char *buf, char *addr, unsigned long count); extern struct list_head vmap_area_list; extern __init void vm_area_add_early(struct vm_struct *vm); extern __init void vm_area_register_early(struct vm_struct *vm, size_t align); +extern __init int vm_area_check_early(struct vm_struct *vm); +#ifdef CONFIG_ENABLE_VMALLOC_SAVING +extern void mark_vmalloc_reserved_area(void *addr, unsigned long size); +#else +static inline void mark_vmalloc_reserved_area(void *addr, unsigned long size) +{ }; +#endif #ifdef CONFIG_SMP # ifdef CONFIG_MMU @@ -183,7 +194,12 @@ pcpu_free_vm_areas(struct vm_struct **vms, int nr_vms) #endif #ifdef CONFIG_MMU +#ifdef CONFIG_ENABLE_VMALLOC_SAVING +extern unsigned long total_vmalloc_size; +#define VMALLOC_TOTAL total_vmalloc_size +#else #define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START) +#endif #else #define VMALLOC_TOTAL 0UL #endif |