53 lines
2.2 KiB
C
53 lines
2.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
|
|
#pragma once
|
|
|
|
#include <mntent.h>
|
|
#include <stdio.h>
|
|
|
|
#include "macro.h"
|
|
|
|
/* 4MB for contents of regular files, 64k inodes for directories, symbolic links and device specials,
|
|
using large storage array systems as a baseline */
|
|
#define TMPFS_LIMITS_DEV ",size=4m,nr_inodes=64k"
|
|
/* Very little, if any use expected */
|
|
#define TMPFS_LIMITS_EMPTY_OR_ALMOST ",size=4m,nr_inodes=1k"
|
|
#define TMPFS_LIMITS_SYS TMPFS_LIMITS_EMPTY_OR_ALMOST
|
|
#define TMPFS_LIMITS_SYS_FS_CGROUP TMPFS_LIMITS_EMPTY_OR_ALMOST
|
|
/* 10% of RAM (using 16GB of RAM as a baseline) translates to 400k inodes (assuming 4k each) and 25%
|
|
translates to 1M inodes */
|
|
#define TMPFS_LIMITS_TMP ",size=10%,nr_inodes=400k"
|
|
#define TMPFS_LIMITS_DEV_SHM TMPFS_LIMITS_TMP
|
|
#define TMPFS_LIMITS_RUN TMPFS_LIMITS_TMP
|
|
#define TMPFS_LIMITS_TEMPORARY_FS TMPFS_LIMITS_TMP
|
|
#define TMPFS_LIMITS_VAR ",size=25%,nr_inodes=1m"
|
|
#define TMPFS_LIMITS_ROOTFS TMPFS_LIMITS_VAR
|
|
#define TMPFS_LIMITS_VOLATILE_STATE TMPFS_LIMITS_VAR
|
|
|
|
int repeat_unmount(const char *path, int flags);
|
|
int umount_recursive(const char *target, int flags);
|
|
int bind_remount_recursive(const char *prefix, unsigned long new_flags, unsigned long flags_mask, char **blacklist);
|
|
int bind_remount_recursive_with_mountinfo(const char *prefix, unsigned long new_flags, unsigned long flags_mask, char **blacklist, FILE *proc_self_mountinfo);
|
|
int bind_remount_one_with_mountinfo(const char *path, unsigned long new_flags, unsigned long flags_mask, FILE *proc_self_mountinfo);
|
|
|
|
int mount_move_root(const char *path);
|
|
|
|
DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, endmntent);
|
|
#define _cleanup_endmntent_ _cleanup_(endmntentp)
|
|
|
|
int mount_verbose(
|
|
int error_log_level,
|
|
const char *what,
|
|
const char *where,
|
|
const char *type,
|
|
unsigned long flags,
|
|
const char *options);
|
|
int umount_verbose(const char *where);
|
|
|
|
int mount_option_mangle(
|
|
const char *options,
|
|
unsigned long mount_flags,
|
|
unsigned long *ret_mount_flags,
|
|
char **ret_remaining_options);
|
|
|
|
int mode_to_inaccessible_node(const char *runtime_dir, mode_t mode, char **dest);
|