[PATCH] copy_file_range: New function to copy file data

[Florian Weimer]

On 12/05/2017 03:03 PM, Florian Weimer wrote:
> 2017-12-05  Florian Weimer<fweimer@redhat.com>
> 
> 	* io/Makefile (routines): Add copy_file_range.
> 	(tests): Add tst-copy_file_range.
> 	(tests-static, tests-internal): Add tst-copy_file_range-compat.
> 	* io/Versions (GLIBC_2.27): Export copy_file_range.
> 	* io/copy_file_range-compat.c: New file.
> 	* io/copy_file_range.c: Likewise.
> 	* io/tst-copy_file_range-compat.c: Likewise.
> 	* io/tst-copy_file_range.c: Likewise.
> 	* manual/llio.texi (Copying File Data): New section.
> 	* posix/unistd.h [__USE_GNU] (copy_file_range): Declare.
> 	* support/Makefile (libsupport-routines): Add support-xfstat,
> 	xftruncate, xlseek.
> 	* support/support-xfstat.c: New file.
> 	* support/xftruncate.c: Likewise.
> 	* support/xlseek.c: Likewise.
> 	* support/xunistd.h (xfstat, xftruncate, xlseek): Declare.
> 	* sysdeps/unix/sysv/linux/**.abilist: Update.
> 	* sysdeps/unix/sysv/linux/copy_file_range.c: New file.

Ping?

<https://sourceware.org/ml/libc-alpha/2017-12/msg00122.html>

Thanks,
Florian