2 # ensure that a sparse file is copied efficiently, by default
4 # Copyright (C) 2011 Free Software Foundation, Inc.
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 .
"${srcdir=.}/init.sh"; path_prepend_ ..
/src
22 # Require a fiemap-enabled FS.
23 # Note we don't check a file here as that could enable
24 # the test on ext3 where emulated extent scanning can be slow.
26 || skip_
"this file system lacks FIEMAP support"
28 # Create a large-but-sparse file.
29 timeout
10 truncate
-s1T f || framework_failure_
31 # Nothing can read (much less write) that many bytes in so little time.
32 timeout
10 cp f f2 || fail
=1
34 # Ensure that the sparse file copied through fiemap has the same size
35 # in bytes as the original.
36 test "$(stat --printf %s f)" = "$(stat --printf %s f2)" || fail
=1