HardenedBSD/bin
Alan Somers c01816a97f cp: use copy_file_range(2)
This has three advantages over write(2)/read(2):

* Fewer context switches and data copies
* Mostly preserves a file's sparseness
* On some file systems (currently NFS 4.2) the file system will perform the
  copy in an especially efficient way.

Reviewed by:	rmacklem
MFC after:	2 weeks
Sponsored by:	Axcient
Differential Revision:	https://reviews.freebsd.org/D26377
2020-09-10 02:48:55 +00:00
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cp cp: use copy_file_range(2) 2020-09-10 02:48:55 +00:00
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