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A comment on Efficient File Copying on Linux.

Re:Efficient File Copying on Linux by heinrich5991 on Wednesday March 22, 2017 @07:33PM (#13936091)
What about `copy_file_range(2)`?
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Re:Efficient File Copying on Linux by kevinoid on Wednesday March 22, 2017 @08:22PM (#13936426)
It looks like the FICLONE ioctl was chosen over the copy_file_range syscall[1] for use in coreutils due to concerns about copy_file_range not preserving holes.[2] I agree, it would be interesting to know how these compare, both in filesystem implementation coverage and performance.

1. https://lwn.net/Articles/659523/

2. https://debbugs.gnu.org/cgi/bugreport.cgi?bug=24399

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Re:Efficient File Copying on Linux by privacyfornow on Wednesday March 22, 2017 @11:16PM (#13937170)
or sendfile() for that matter.
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