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Revision 9def36e0fa9a0d9c5393c039db59f1f2d3a388b3 authored by Logan Gunthorpe on 14 December 2018, 22:16:57 UTC, committed by Linus Torvalds on 14 December 2018, 23:05:45 UTC 
mm/sparse: add common helper to mark all memblocks present
 
Presently the arches arm64, arm and sh have a function which loops
through each memblock and calls memory present.  riscv will require a
similar function.

Introduce a common memblocks_present() function that can be used by all
the arches.  Subsequent patches will cleanup the arches that make use of
this.

Link: http://lkml.kernel.org/r/20181107205433.3875-3-logang@deltatee.com
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Raw File
do_mounts.h 
/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/kernel.h>
#include <linux/blkdev.h>
#include <linux/init.h>
#include <linux/syscalls.h>
#include <linux/unistd.h>
#include <linux/slab.h>
#include <linux/mount.h>
#include <linux/major.h>
#include <linux/root_dev.h>

void  change_floppy(char *fmt, ...);
void  mount_block_root(char *name, int flags);
void  mount_root(void);
extern int root_mountflags;

static inline int create_dev(char *name, dev_t dev)
{
	ksys_unlink(name);
	return ksys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
}

static inline u32 bstat(char *name)
{
	struct kstat stat;
	if (vfs_stat(name, &stat) != 0)
		return 0;
	if (!S_ISBLK(stat.mode))
		return 0;
	return stat.rdev;
}

#ifdef CONFIG_BLK_DEV_RAM

int __init rd_load_disk(int n);
int __init rd_load_image(char *from);

#else

static inline int rd_load_disk(int n) { return 0; }
static inline int rd_load_image(char *from) { return 0; }

#endif

#ifdef CONFIG_BLK_DEV_INITRD

bool __init initrd_load(void);

#else

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

#endif

#ifdef CONFIG_BLK_DEV_MD

void md_run_setup(void);

#else

static inline void md_run_setup(void) {}

#endif
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