diff options
author | Kent Overstreet <kent.overstreet@gmail.com> | 2022-03-30 17:40:25 -0400 |
---|---|---|
committer | Kent Overstreet <kent.overstreet@gmail.com> | 2022-03-30 17:40:37 -0400 |
commit | e240b4ae86adb022e3266220ce9807dad8b51beb (patch) | |
tree | 535081dc65b75f8f288f10b820eeebbd64f9e0e0 /include/linux | |
parent | 59abea577659ce82ff0098633caaf74076a9b4d7 (diff) |
Update bcachefs sources to f638850417 bcachefs: bch2_trans_log_msg()
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/slab.h | 63 | ||||
-rw-r--r-- | include/linux/types.h | 1 | ||||
-rw-r--r-- | include/linux/vmalloc.h | 53 |
3 files changed, 64 insertions, 53 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h index 557c0411..17fe235e 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -7,10 +7,14 @@ #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 ARCH_KMALLOC_MINALIGN 16 #define KMALLOC_MAX_SIZE SIZE_MAX @@ -58,6 +62,16 @@ static inline void *krealloc(void *old, size_t size, gfp_t flags) 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) #define kmalloc_array(n, size, flags) \ ((size) != 0 && (n) > SIZE_MAX / (size) \ @@ -174,4 +188,53 @@ static inline struct kmem_cache *kmem_cache_create(size_t obj_size) #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(unsigned long size, gfp_t gfp_mask) +{ + unsigned i = 0; + void *p; + + size = round_up(size, PAGE_SIZE); + + do { + run_shrinkers(gfp_mask, i != 0); + + p = aligned_alloc(PAGE_SIZE, size); + if (p && gfp_mask & __GFP_ZERO) + memset(p, 0, size); + } while (!p && i++ < 10); + + return p; +} + +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 */ diff --git a/include/linux/types.h b/include/linux/types.h index 77f96737..7eb2222f 100644 --- a/include/linux/types.h +++ b/include/linux/types.h @@ -6,6 +6,7 @@ #include <stdint.h> #include <fcntl.h> +#include <sys/stat.h> #include <sys/types.h> #define __SANE_USERSPACE_TYPES__ /* For PPC64, to get LL64 types */ diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 965e341d..55fffb59 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -1,59 +1,6 @@ #ifndef __TOOLS_LINUX_VMALLOC_H #define __TOOLS_LINUX_VMALLOC_H -#include <stdlib.h> -#include <sys/mman.h> - #include "linux/slab.h" -#include "tools-util.h" - -#define PAGE_KERNEL 0 -#define PAGE_KERNEL_EXEC 1 - -#define vfree(p) free(p) - -static inline void *__vmalloc(unsigned long size, gfp_t gfp_mask) -{ - unsigned i = 0; - void *p; - - size = round_up(size, PAGE_SIZE); - - do { - run_shrinkers(gfp_mask, i != 0); - - p = aligned_alloc(PAGE_SIZE, size); - if (p && gfp_mask & __GFP_ZERO) - memset(p, 0, size); - } while (!p && i++ < 10); - - return p; -} - -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_VMALLOC_H */ |