mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-18 12:20:24 +00:00
98fdadfde7
This commit makes sure sparsify() is not run when rbd image is in use. Running rbd sparsify with workload doing io and too frequently is not desirable. When a image is in use fstrim is run and sparsify will be run only when image is not mapped. Signed-off-by: Rakshith R <rar@redhat.com>
56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
/*
|
|
Copyright 2021 The Ceph-CSI Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package rbd
|
|
|
|
import (
|
|
"fmt"
|
|
)
|
|
|
|
// Sparsify checks the size of the objects in the RBD image and calls
|
|
// rbd_sparify() to free zero-filled blocks and reduce the storage consumption
|
|
// of the image.
|
|
// This function will return ErrImageInUse if the image is in use, since
|
|
// sparsifying an image on which i/o is in progress is not optimal.
|
|
func (ri *rbdImage) Sparsify() error {
|
|
inUse, err := ri.isInUse()
|
|
if err != nil {
|
|
return fmt.Errorf("failed to check if image is in use: %w", err)
|
|
}
|
|
if inUse {
|
|
// if the image is in use, we should not sparsify it, return ErrImageInUse.
|
|
return ErrImageInUse
|
|
}
|
|
|
|
image, err := ri.open()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer image.Close()
|
|
|
|
imageInfo, err := image.Stat()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
err = image.Sparsify(1 << imageInfo.Order)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to sparsify image: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|