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https://github.com/checkpoint-restore/criu
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f020bef776
If a file like /proc/20/mountinfo is open, but 20 is a zombie (or doesn't exist any more), we can't read this file at all, so a link remap won't work. Instead, we add a new remap, called the dead process remap, which forks a TASK_HELPER as that dead pid so that the restore task can open the new /proc/20/mountinfo instead. This commit also adds a new stage CR_STATE_RESTORE_SHARED. Since new TASK_HELPERS are added when loading the shared resource images, we need to wait to start forking tasks until after these resources are loaded. v2: fix a mutex bug Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
49 lines
815 B
C
49 lines
815 B
C
#ifndef __CR_FS_MAGIC_H__
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#define __CR_FS_MAGIC_H__
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#include <sys/vfs.h>
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/*
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* Gather magic numbers in case if distros
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* do not provide appropriate entry in
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* linux/magic.h.
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*/
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#ifndef NFS_SUPER_MAGIC
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# define NFS_SUPER_MAGIC 0x6969
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#endif
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#ifndef PIPEFS_MAGIC
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# define PIPEFS_MAGIC 0x50495045
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#endif
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#ifndef ANON_INODE_FS_MAGIC
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# define ANON_INODE_FS_MAGIC 0x09041934
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#endif
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#ifndef TMPFS_MAGIC
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# define TMPFS_MAGIC 0x01021994
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#endif
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#ifndef SOCKFS_MAGIC
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# define SOCKFS_MAGIC 0x534f434b
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#endif
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#ifndef DEVPTS_SUPER_MAGIC
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#define DEVPTS_SUPER_MAGIC 0x1cd1
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#endif
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#ifndef BTRFS_SUPER_MAGIC
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#define BTRFS_SUPER_MAGIC 0x9123683E
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#endif
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#ifndef AUFS_SUPER_MAGIC
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#define AUFS_SUPER_MAGIC 0x61756673
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#endif
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#ifndef PROC_SUPER_MAGIC
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#define PROC_SUPER_MAGIC 0x9fa0
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#endif
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#endif /* __CR_FS_MAGIC_H__ */
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