+++ /dev/null
-#ifndef __TOOLS_LINUX_SLAB_H
-#define __TOOLS_LINUX_SLAB_H
-
-#include <malloc.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <linux/kernel.h>
-#include <linux/log2.h>
-#include <linux/overflow.h>
-#include <linux/page.h>
-#include <linux/shrinker.h>
-#include <linux/types.h>
-
-#include <stdlib.h>
-#include <sys/mman.h>
-
-#define alloc_hooks(_do, ...) _do
-
-#define ARCH_KMALLOC_MINALIGN 16
-#define KMALLOC_MAX_SIZE SIZE_MAX
-
-static inline void *kmalloc_noprof(size_t size, gfp_t flags)
-{
- unsigned i;
- void *p;
-
- for (i = 0; i < 10; i++) {
- if (size) {
- size_t alignment = min_t(size_t, PAGE_SIZE,
- rounddown_pow_of_two(size));
- alignment = max(sizeof(void *), alignment);
- if (posix_memalign(&p, alignment, size))
- p = NULL;
- } else {
- p = malloc(0);
- }
-
- if (p) {
- if (flags & __GFP_ZERO)
- memset(p, 0, size);
- break;
- }
-
- run_shrinkers(flags, true);
- }
-
- return p;
-}
-#define kmalloc kmalloc_noprof
-
-static inline void *krealloc(void *old, size_t size, gfp_t flags)
-{
- void *new;
-
- new = kmalloc(size, flags);
- if (!new)
- return NULL;
-
- if (flags & __GFP_ZERO)
- memset(new, 0, size);
-
- if (old) {
- memcpy(new, old,
- min(malloc_usable_size(old),
- malloc_usable_size(new)));
- free(old);
- }
-
- return new;
-}
-
-static inline void *krealloc_array(void *p, size_t new_n, size_t new_size, gfp_t flags)
-{
- size_t bytes;
-
- if (unlikely(check_mul_overflow(new_n, new_size, &bytes)))
- return NULL;
-
- return krealloc(p, bytes, flags);
-}
-
-#define kzalloc(size, flags) kmalloc(size, flags|__GFP_ZERO)
-
-static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
-{
- size_t bytes;
-
- if (unlikely(check_mul_overflow(n, size, &bytes)))
- return NULL;
- return kmalloc(bytes, flags);
-}
-
-#define kvmalloc_array(n, size, flags) \
- ((size) != 0 && (n) > SIZE_MAX / (size) \
- ? NULL : kmalloc((n) * (size), flags))
-
-#define kcalloc(n, size, flags) kmalloc_array(n, size, flags|__GFP_ZERO)
-
-#define kfree(p) free(p)
-#define kzfree(p) free(p)
-
-#define kvmalloc(size, flags) kmalloc(size, flags)
-#define kvzalloc(size, flags) kzalloc(size, flags)
-#define kvfree(p) kfree(p)
-
-static inline struct page *alloc_pages_noprof(gfp_t flags, unsigned int order)
-{
- size_t size = PAGE_SIZE << order;
- unsigned i;
- void *p;
-
- for (i = 0; i < 10; i++) {
- p = aligned_alloc(PAGE_SIZE, size);
-
- if (p) {
- if (flags & __GFP_ZERO)
- memset(p, 0, size);
- break;
- }
-
- run_shrinkers(flags, true);
- }
-
- return p;
-}
-#define alloc_pages alloc_pages_noprof
-
-#define alloc_page(gfp) alloc_pages(gfp, 0)
-
-#define _get_free_pages(gfp, order) ((unsigned long) alloc_pages(gfp, order))
-#define __get_free_pages(gfp, order) ((unsigned long) alloc_pages(gfp, order))
-#define get_free_pages_noprof(gfp, order) \
- ((unsigned long) alloc_pages(gfp, order))
-#define __get_free_page(gfp) __get_free_pages(gfp, 0)
-
-#define __free_pages(page, order) \
-do { \
- (void) order; \
- free(page); \
-} while (0)
-
-#define free_pages(addr, order) \
-do { \
- (void) order; \
- free((void *) (addr)); \
-} while (0)
-
-#define __free_page(page) __free_pages((page), 0)
-#define free_page(addr) free_pages((addr), 0)
-
-#define VM_IOREMAP 0x00000001 /* ioremap() and friends */
-#define VM_ALLOC 0x00000002 /* vmalloc() */
-#define VM_MAP 0x00000004 /* vmap()ed pages */
-#define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */
-#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 */
-
-static inline void vunmap(const void *addr) {}
-
-static inline void *vmap(struct page **pages, unsigned int count,
- unsigned long flags, unsigned prot)
-{
- return NULL;
-}
-
-#define is_vmalloc_addr(page) 0
-
-#define vmalloc_to_page(addr) ((struct page *) (addr))
-
-static inline void *kmemdup(const void *src, size_t len, gfp_t gfp)
-{
- void *p;
-
- p = kmalloc(len, gfp);
- if (p)
- memcpy(p, src, len);
- return p;
-}
-
-struct kmem_cache {
- size_t obj_size;
-};
-
-static inline void *kmem_cache_alloc(struct kmem_cache *c, gfp_t gfp)
-{
- return kmalloc(c->obj_size, gfp);
-}
-
-static inline void *kmem_cache_zalloc(struct kmem_cache *c, gfp_t gfp)
-{
- return kzalloc(c->obj_size, gfp);
-}
-
-static inline void kmem_cache_free(struct kmem_cache *c, void *p)
-{
- kfree(p);
-}
-
-static inline void kmem_cache_destroy(struct kmem_cache *p)
-{
- kfree(p);
-}
-
-static inline struct kmem_cache *kmem_cache_create(size_t obj_size)
-{
- struct kmem_cache *p = kmalloc(sizeof(*p), GFP_KERNEL);
- if (!p)
- return NULL;
-
- p->obj_size = obj_size;
- return p;
-}
-
-#define KMEM_CACHE(_struct, _flags) kmem_cache_create(sizeof(struct _struct))
-
-#define PAGE_KERNEL 0
-#define PAGE_KERNEL_EXEC 1
-
-#define vfree(p) free(p)
-
-static inline void *__vmalloc_noprof(unsigned long size, gfp_t flags)
-{
- unsigned i;
- void *p;
-
- size = round_up(size, PAGE_SIZE);
-
- for (i = 0; i < 10; i++) {
- p = aligned_alloc(PAGE_SIZE, size);
-
- if (p) {
- if (flags & __GFP_ZERO)
- memset(p, 0, size);
- break;
- }
-
- run_shrinkers(flags, true);
- }
-
- return p;
-}
-#define __vmalloc __vmalloc_noprof
-
-static inline void *vmalloc_exec(unsigned long size, gfp_t gfp_mask)
-{
- void *p;
-
- p = __vmalloc(size, gfp_mask);
- if (!p)
- return NULL;
-
- if (mprotect(p, size, PROT_READ|PROT_WRITE|PROT_EXEC)) {
- vfree(p);
- return NULL;
- }
-
- return p;
-}
-
-static inline void *vmalloc(unsigned long size)
-{
- return __vmalloc(size, GFP_KERNEL);
-}
-
-static inline void *vzalloc(unsigned long size)
-{
- return __vmalloc(size, GFP_KERNEL|__GFP_ZERO);
-}
-
-#endif /* __TOOLS_LINUX_SLAB_H */
projects / bcachefs-tools-debian / blobdiff