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/* 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__ */