linux-stable/include/linux/initrd.h
tangmeng d772cc2c32 kernel/do_mount_initrd: move real_root_dev sysctls to its own file
kernel/sysctl.c is a kitchen sink where everyone leaves their dirty
dishes, this makes it very difficult to maintain.

To help with this maintenance let's start by moving sysctls to places
where they actually belong.  The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.

All filesystem syctls now get reviewed by fs folks. This commit
follows the commit of fs, move the real_root_dev sysctl to its own file,
kernel/do_mount_initrd.c.

Signed-off-by: tangmeng <tangmeng@uniontech.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2022-04-06 13:43:44 -07:00

38 lines
1008 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_INITRD_H
#define __LINUX_INITRD_H
#define INITRD_MINOR 250 /* shouldn't collide with /dev/ram* too soon ... */
/* starting block # of image */
extern int rd_image_start;
/* size of a single RAM disk */
extern unsigned long rd_size;
/* 1 if it is not an error if initrd_start < memory_start */
extern int initrd_below_start_ok;
/* free_initrd_mem always gets called with the next two as arguments.. */
extern unsigned long initrd_start, initrd_end;
extern void free_initrd_mem(unsigned long, unsigned long);
#ifdef CONFIG_BLK_DEV_INITRD
extern void __init reserve_initrd_mem(void);
extern void wait_for_initramfs(void);
#else
static inline void __init reserve_initrd_mem(void) {}
static inline void wait_for_initramfs(void) {}
#endif
extern phys_addr_t phys_initrd_start;
extern unsigned long phys_initrd_size;
extern char __initramfs_start[];
extern unsigned long __initramfs_size;
void console_on_rootfs(void);
#endif /* __LINUX_INITRD_H */