Added copy_file_range for faster file copy in mkcomposefs.

containers / composefs

a file system for mounting container images

GNU General Public License v2.0

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Added copy_file_range for faster file copy in mkcomposefs. #276

Closed divineaugustine closed 4 months ago

divineaugustine commented 4 months ago

This resolves #274 Added fallback to classic file copy if the copy_file_range fails for the reasons it can be retried. I have tested the fallback with digest path set to a USB drive where the copy_file_range fails with EXDEV.