Cregit: Linux 6.12: mman.h

Contributors: 6
Author	Tokens	Token Proportion	Commits	Commit Proportion
Helge Deller	32	44.44%	2	25.00%
Zev Weiss	26	36.11%	1	12.50%
Lorenzo Stoakes	8	11.11%	1	12.50%
Linus Torvalds (pre-git)	4	5.56%	2	25.00%
Matt Mackall	1	1.39%	1	12.50%
Greg Kroah-Hartman	1	1.39%	1	12.50%
Total	72		8

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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__ */