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→What CRIU does about it
Please note that a file may have been opened by many removed names, and for each a link-remap name should point to the same file, so while dumping and restoring CRIU keeps track of those names to inode mappings.
Please note that a file may have been opened by many removed names, and for each a link-remap name should point to the same file, so while dumping and restoring CRIU keeps track of those names to inode mappings.
=== Chunked ghost files ===
When CRIU checkpoints an invisible (ghost) file with size larger than 12MB, it would try to reduce the size of the corresponding image by seeking for holes (e.g., in sparse files). This approach allow CRIU to save the content of the file into a set of chunks and skip over the "empty" space in a file.
=== Virtual filesystems ===
=== Virtual filesystems ===