Commit bea38841 authored by Ma Wupeng's avatar Ma Wupeng Committed by Wupeng Ma
Browse files

arm64: mm: Hide pbha_bit0 in procfs if pbha is not enabled 

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I96IZH



--------------------------------

Hide pbha_bit0 in procfs if pbha is not enabled

Signed-off-by: default avatarMa Wupeng <mawupeng1@huawei.com>
parent 1876acf1

fs/proc/base.c

+13 −0
Original line number Diff line number Diff line
@@ -1450,6 +1450,16 @@ static const struct file_operations proc_pbha_bit0_ops = { 
	.write      = pbha_bit0_write,

	.llseek     = generic_file_llseek,

};



bool pbha_bit0_hide_file(const char *name)

{

	if (!system_support_pbha_bit0() && !strncmp("pbha_bit0", name, 9))

		return true;



	return false;

}

#else

static bool pbha_bit0_hide_file(const char *name) { return false; }

#endif



#ifdef CONFIG_AUDIT
@@ -2849,6 +2859,9 @@ static struct dentry *proc_pident_instantiate(struct dentry *dentry, 


static bool proc_hide_pidents(const struct pid_entry *p)

{

	if (pbha_bit0_hide_file(p->name))

		return true;



	return false;

}