[#211] blobstor: Remove global lock

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

pkg/local_object_storage/blobstor/blobstor.go

@@ -3,7 +3,6 @@ package blobstor
 import (
 	"encoding/hex"
 	"os"
-	"sync"
 
 	"github.com/nspcc-dev/neofs-node/pkg/util/logger"
 	"go.uber.org/zap"
@@ -12,8 +11,6 @@ import (
 // BlobStor represents NeoFS local BLOB storage.
 type BlobStor struct {
 	*cfg
-
-	mtx *sync.RWMutex
 }
 
 // Option represents BlobStor's constructor option.
@@ -57,7 +54,6 @@ func New(opts ...Option) *BlobStor {
 
 	return &BlobStor{
 		cfg: c,
-		mtx: new(sync.RWMutex),
 	}
 }
 

pkg/local_object_storage/blobstor/delete_big.go

@@ -22,9 +22,6 @@ type DeleteBigRes struct{}
 //
 // Returns ErrObjectNotFound if there is no object to delete.
 func (b *BlobStor) DeleteBig(prm *DeleteBigPrm) (*DeleteBigRes, error) {
-	b.mtx.Lock()
-	defer b.mtx.Unlock()
-
 	err := b.fsTree.delete(prm.addr)
 	if errors.Is(err, errFileNotFound) {
 		err = ErrObjectNotFound

pkg/local_object_storage/blobstor/get_big.go

@@ -27,9 +27,6 @@ var ErrObjectNotFound = errors.New("object not found")
 // Returns any error encountered that
 // did not allow to completely read the object.
 func (b *BlobStor) GetBig(prm *GetBigPrm) (*GetBigRes, error) {
-	b.mtx.RLock()
-	defer b.mtx.RUnlock()
-
 	// get compressed object data
 	data, err := b.fsTree.get(prm.addr)
 	if err != nil {

pkg/local_object_storage/blobstor/get_range_big.go

@@ -21,9 +21,6 @@ type GetRangeBigRes struct {
 // Returns any error encountered that
 // did not allow to completely read the object payload range.
 func (b *BlobStor) GetRangeBig(prm *GetRangeBigPrm) (*GetRangeBigRes, error) {
-	b.mtx.RLock()
-	defer b.mtx.RUnlock()
-
 	// get compressed object data
 	data, err := b.fsTree.get(prm.addr)
 	if err != nil {

pkg/local_object_storage/blobstor/put.go

@@ -28,9 +28,6 @@ type PutRes struct {
 // Returns any error encountered that
 // did not allow to completely save the object.
 func (b *BlobStor) Put(prm *PutPrm) (*PutRes, error) {
-	b.mtx.Lock()
-	defer b.mtx.Unlock()
-
 	// marshal object
 	data, err := prm.obj.Marshal()
 	if err != nil {