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https://github.com/checkpoint-restore/criu.git
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d8b41b6525
The AUFS support code handles the "bad" information that we get from the kernel in /proc/<pid>/map_files and /proc/<pid>/mountinfo files. For details see comments in sysfs_parse.c. The main motivation for this work was dumping and restoring Docker containers which by default use the AUFS graph driver. For dump, --aufs-root <container_root> should be added to the command line options. For restore, there is no need for AUFS-specific command line options but the container's AUFS filesystem should already be set up before calling criu restore. [ xemul: With AUFS files sometimes, in particular -- in case of a mapping of an executable file (likekely the one created at elf load), in the /proc/pid/map_files/xxx link target we see not the path by which the file is seen in AUFS, but the path by which AUFS accesses this file from one of its "branches". In order to fix the path we get the info about branches from sysfs and when we meet such a file, we cut the branch part of the path. ] Signed-off-by: Saied Kazemi <saied@google.com> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
44 lines
750 B
C
44 lines
750 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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#endif /* __CR_FS_MAGIC_H__ */
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