42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
//go:build linux
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/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package blkdiscard
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import exec "golang.org/x/sys/execabs"
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// Version returns the output of "blkdiscard --version"
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func Version() (string, error) {
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return blkdiscard("--version")
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}
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// BlkDiscard discards all blocks of a device.
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// devicePath is expected to be a fully qualified path.
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// BlkDiscard expects the caller to verify that the device is not in use.
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func BlkDiscard(devicePath string) (string, error) {
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return blkdiscard(devicePath)
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}
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func blkdiscard(args ...string) (string, error) {
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output, err := exec.Command("blkdiscard", args...).CombinedOutput()
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if err != nil {
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return "", err
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}
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return string(output), nil
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}
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