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https://github.com/checkpoint-restore/criu
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c0c0546c31
If we want one CRIU binary to work across all AArch64 kernel configurations, a single task size value cannot be hard coded. Signed-off-by: Christopher Covington <cov@codeaurora.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
47 lines
951 B
C
47 lines
951 B
C
#ifndef __CR_KERNDAT_H__
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#define __CR_KERNDAT_H__
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#include "asm/types.h"
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struct stat;
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/*
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* kerndat stands for "kernel data" and is a collection
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* of run-time information about current kernel
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*/
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extern int kerndat_init(void);
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extern int kerndat_init_rst(void);
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extern int kerndat_get_dirty_track(void);
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extern int kerndat_fdinfo_has_lock(void);
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struct kerndat_s {
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dev_t shmem_dev;
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int tcp_max_rshare;
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int last_cap;
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u64 zero_page_pfn;
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bool has_dirty_track;
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bool has_memfd;
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bool has_fdinfo_lock;
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unsigned long task_size;
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};
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extern struct kerndat_s kdat;
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enum {
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KERNDAT_FS_STAT_DEVPTS,
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KERNDAT_FS_STAT_DEVTMPFS,
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KERNDAT_FS_STAT_MAX
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};
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/*
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* Check whether the fs @which with kdevice @kdev
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* is the same as host's. If yes, this means that
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* the fs mount is shared with host, if no -- it's
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* a new (likely virtuzlized) fs instance.
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*/
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extern int kerndat_fs_virtualized(unsigned int which, u32 kdev);
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#endif /* __CR_KERNDAT_H__ */
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