mirror of
git://git.sv.gnu.org/coreutils.git
synced 2026-03-28 15:54:58 +02:00
5c8c2a5161
Upcomming gnulib changes may disable SEEK_HOLE even if the system supports it, so dynamically check if we've SEEK_HOLE enabled. * init.cfg (seek_data_capable_): SEEK_DATA may be disabled in the build if the system support is deemed insufficient, so also use `cp --debug` to determine if it's enabled. * tests/cp/sparse-2.sh: Adjust to a more general diagnostic. * tests/cp/sparse-extents-2.sh: Likewise. * tests/cp/sparse-extents.sh: Likewise. * tests/cp/sparse-perf.sh: Likewise.
41 lines
1.5 KiB
Bash
Executable File
41 lines
1.5 KiB
Bash
Executable File
#!/bin/sh
|
|
# ensure that a sparse file is copied efficiently, by default
|
|
|
|
# Copyright (C) 2021-2023 Free Software Foundation, Inc.
|
|
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
|
|
print_ver_ cp
|
|
|
|
# Create a large-but-sparse file.
|
|
timeout 10 truncate -s1T f ||
|
|
skip_ "unable to create a 1 TiB sparse file"
|
|
|
|
# Note zfs with zfs_dmu_offset_next_sync=0 (the default)
|
|
# will generally skip here, due to needing about 5 seconds
|
|
# between the creation of the file and the use of SEEK_DATA,
|
|
# for it to determine it's an empty file (return ENXIO).
|
|
seek_data_capable_ f ||
|
|
skip_ "insufficient SEEK_DATA support"
|
|
|
|
# Nothing can read that many bytes in so little time.
|
|
timeout 10 cp --reflink=never f f2 || fail=1
|
|
|
|
# Ensure that the sparse file copied through SEEK_DATA has the same size
|
|
# in bytes as the original.
|
|
test "$(stat --printf %s f)" = "$(stat --printf %s f2)" || fail=1
|
|
|
|
Exit $fail
|