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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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313c47f4fe
Remove the "nullfs_rootfs" boot parameter and simply always use nullfs. The mutable rootfs will be mounted on top of it. Systems that don't use pivot_root() to pivot away from the real rootfs will have an additional mount stick around but that shouldn't be a problem at all. If it is we'll rever this commit. This also simplifies the boot process and removes the need for the traditional switch_root workarounds. Suggested-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#include <linux/kernel.h>
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#include <linux/blkdev.h>
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#include <linux/init.h>
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#include <linux/syscalls.h>
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#include <linux/unistd.h>
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#include <linux/slab.h>
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#include <linux/mount.h>
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#include <linux/major.h>
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#include <linux/root_dev.h>
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#include <linux/init_syscalls.h>
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#include <linux/task_work.h>
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#include <linux/file.h>
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void mount_root_generic(char *name, char *pretty_name, int flags);
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void mount_root(char *root_device_name);
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extern int root_mountflags;
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static inline __init int create_dev(char *name, dev_t dev)
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{
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init_unlink(name);
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return init_mknod(name, S_IFBLK | 0600, new_encode_dev(dev));
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}
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#ifdef CONFIG_BLK_DEV_RAM
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int __init rd_load_image(void);
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#else
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static inline int rd_load_image(void) { return 0; }
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#endif
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#ifdef CONFIG_BLK_DEV_INITRD
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void __init initrd_load(void);
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#else
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static inline void initrd_load(void) { }
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#endif
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/* Ensure that async file closing finished to prevent spurious errors. */
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static inline void init_flush_fput(void)
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{
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flush_delayed_fput();
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task_work_run();
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}
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