On Fri, Sep 11, 2020 at 08:49:36PM +0000, Alan Somers wrote: > Author: asomers > Date: Fri Sep 11 20:49:36 2020 > New Revision: 365643 > URL: https://svnweb.freebsd.org/changeset/base/365643 > > Log: > cp: fall back to read/write if copy_file_range fails > > Even though copy_file_range has a file-system agnostic version, it still > fails on devfs (perhaps because the file descriptor is non-seekable?) In > that case, fallback to old-fashioned read/write. Fixes > "cp /dev/null /tmp/null"
Devices are seekable. The reason for EINVAL is that vn_copy_file_range() checks that both in and out vnodes are VREG. For devfs, they are VCHR. _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
