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iotests: Provide a function for checking the creation of huge files

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Some tests create huge (but sparse) files, and to be able to run those
tests in certain limited environments (like CI containers), we have to
check for the possibility to create such files first. Thus let's introduce
a common function to check for large files, and replace the already
existing checks in the iotests 005 and 220 with this function.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Thomas Huth 2019-12-02 11:16:29 +01:00 committed by Kevin Wolf
parent aceeaa69d2
commit 059f708d0c
3 changed files with 13 additions and 8 deletions
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5
tests/qemu-iotests/005
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@ -59,10 +59,7 @@ fi
# Sanity check: For raw, we require a file system that permits the creation
# of a HUGE (but very sparse) file. Check we can create it before continuing.
if [ "$IMGFMT" = "raw" ]; then
if ! truncate --size=5T "$TEST_IMG"; then
_notrun "file system on $TEST_DIR does not support large enough files"
fi
rm "$TEST_IMG"
_require_large_file 5T
fi
echo

6
tests/qemu-iotests/220
View File

@ -42,10 +42,8 @@ echo "== Creating huge file =="
# Sanity check: We require a file system that permits the creation
# of a HUGE (but very sparse) file. tmpfs works, ext4 does not.
if ! truncate --size=513T "$TEST_IMG"; then
_notrun "file system on $TEST_DIR does not support large enough files"
fi
rm "$TEST_IMG"
_require_large_file 513T
IMGOPTS='cluster_size=2M,refcount_bits=1' _make_test_img 513T
echo "== Populating refcounts =="

10
tests/qemu-iotests/common.rc
View File

@ -643,5 +643,15 @@ _require_drivers()
done
}
# Check that we have a file system that allows huge (but very sparse) files
#
_require_large_file()
{
if ! truncate --size="$1" "$TEST_IMG"; then
_notrun "file system on $TEST_DIR does not support large enough files"
fi
rm "$TEST_IMG"
}
# make sure this script returns success
true