dm era: only resize metadata in preresume
[linux-2.6-block.git] / include / linux / ptdump.h
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1/* SPDX-License-Identifier: GPL-2.0 */
2
3#ifndef _LINUX_PTDUMP_H
4#define _LINUX_PTDUMP_H
5
6#include <linux/mm_types.h>
7
8struct ptdump_range {
9 unsigned long start;
10 unsigned long end;
11};
12
13struct ptdump_state {
f8f0d0b6 14 /* level is 0:PGD to 4:PTE, or -1 if unknown */
30d621f6 15 void (*note_page)(struct ptdump_state *st, unsigned long addr,
99395ee3 16 int level, u64 val);
1494e0c3 17 void (*effective_prot)(struct ptdump_state *st, int level, u64 val);
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18 const struct ptdump_range *range;
19};
20
e47690d7 21void ptdump_walk_pgd(struct ptdump_state *st, struct mm_struct *mm, pgd_t *pgd);
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22
23#endif /* _LINUX_PTDUMP_H */