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61c81ffaac
* init.cfg (seek_data_capable_): Add a timeout to ensure failure for slow lseek(...SEEK_DATA) calls (even if that syscall isn't interrupted). * tests/cp/sparse-perf.sh: Run the SEEK_DATA check on the 1TiB empty file to exclude both FreeBSD 9.1 which takes 35s, and ZFS which requires a delay of about 5s between file creation and use of SEEK_DATA to correctly determine it's empty (return ENXIO). Also remove the stat size checks as they invalidate the test due to cp never writing data due to it being always zeros, and thus converted to holes in the output.
41 lines
1.5 KiB
Bash
Executable File
41 lines
1.5 KiB
Bash
Executable File
#!/bin/sh
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# ensure that a sparse file is copied efficiently, by default
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# Copyright (C) 2021 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ cp
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# Create a large-but-sparse file.
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timeout 10 truncate -s1T f ||
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skip_ "unable to create a 1 TiB sparse file"
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# Note zfs with zfs_dmu_offset_next_sync=0 (the default)
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# will generally skip here, due to needing about 5 seconds
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# between the creation of the file and the use of SEEK_DATA,
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# for it to determine it's an empty file (return ENXIO).
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seek_data_capable_ f ||
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skip_ "this file system lacks appropriate SEEK_DATA support"
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# Nothing can read that many bytes in so little time.
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timeout 10 cp --reflink=never f f2 || fail=1
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# Ensure that the sparse file copied through SEEK_DATA has the same size
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# in bytes as the original.
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test "$(stat --printf %s f)" = "$(stat --printf %s f2)" || fail=1
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Exit $fail
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