Rick Macklem c98a764c68 cp(1): fix performance issue for large non-sparse file copies ... PR252358 reported a serious performance problem when copying a large non-sparse file on a UFS file system. This problem seems to have been caused by a large number of SEEK_HOLE operations, with one done for each copy_file_range(2) call. This patch modifies cp(1) to use a large (SSIZE_MAX) len argument, reducing the number of system calls and resolving the performance issue. While here, convert the type of the "rcount" from "int" to "ssize_t" so that it is consistent with that returned by both read(2) and copy_file_range(2). PR: 252358 Reviewed by: asomers Differential Revision: https://reviews.freebsd.org/D27937		2021-01-02 16:58:43 -08:00
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tests	cp: tests: fix weird 20 insertion	2020-09-23 03:02:45 +00:00
cp.1	cp(1): Bugfixes for some issues reported by mandoc	2020-10-03 18:36:22 +00:00
cp.c	fts_read: Handle error from a NULL return better.	2020-12-08 23:38:26 +00:00
extern.h	General further adoption of SPDX licensing ID tags.	2017-11-20 19:49:47 +00:00
Makefile	cp: add some basic tests	2020-09-23 03:01:14 +00:00
Makefile.depend	DIRDEPS_BUILD: Update dependencies.	2017-10-31 00:07:04 +00:00
utils.c	cp(1): fix performance issue for large non-sparse file copies	2021-01-02 16:58:43 -08:00