| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef __ASM_MMAN_H__ |
| #define __ASM_MMAN_H__ |
| |
| #include <linux/fs.h> |
| #include <uapi/asm/mman.h> |
| |
| /* PARISC cannot allow mdwe as it needs writable stacks */ |
| static inline bool arch_memory_deny_write_exec_supported(void) |
| { |
| return false; |
| } |
| #define arch_memory_deny_write_exec_supported arch_memory_deny_write_exec_supported |
| |
| static inline unsigned long arch_calc_vm_flag_bits(struct file *file, unsigned long flags) |
| { |
| /* |
| * The stack on parisc grows upwards, so if userspace requests memory |
| * for a stack, mark it with VM_GROWSUP so that the stack expansion in |
| * the fault handler will work. |
| */ |
| if (flags & MAP_STACK) |
| return VM_GROWSUP; |
| |
| return 0; |
| } |
| #define arch_calc_vm_flag_bits(file, flags) arch_calc_vm_flag_bits(file, flags) |
| |
| #endif /* __ASM_MMAN_H__ */ |
