| /* 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__ */ |