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rbd: disable rbd_discard_on_zeroed_write_same for thick-allocation

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Signed-off-by: Niels de Vos <ndevos@redhat.com>
This commit is contained in:
Niels de Vos
2021-01-22 16:20:36 +01:00
committed by mergify[bot]
parent 5522a05f59
commit 74d218df8d
2 changed files with 30 additions and 0 deletions
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9
internal/rbd/rbd_util.go
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@ -299,6 +299,15 @@ func (rv *rbdVolume) open() (*librbd.Image, error) {
func (rv *rbdVolume) allocate(ctx context.Context) error {
util.DebugLog(ctx, "going to allocate %q with %d bytes, this may take time", rv.String(), rv.VolSize)
// We do not want to call discard, we really want to write zeros to get
// the allocation. This sets the option for the re-used connection, and
// all subsequent images that are opened. That is not a problem, as
// this is the only place images get written.
err := rv.conn.DisableDiscardOnZeroedWriteSame()
if err != nil {
return err
}
image, err := rv.open()
if err != nil {
return err