OvmfPkg/VirtioFsDxe: implement EFI_FILE_PROTOCOL.Flush()

[mirror_edk2.git] / OvmfPkg / VirtioFsDxe / SimpleFsFlush.c

/** @file\r
  EFI_FILE_PROTOCOL.Flush() member function for the Virtio Filesystem driver.\r
\r
  Copyright (C) 2020, Red Hat, Inc.\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
**/\r
\r
#include "VirtioFsDxe.h"\r
\r
EFI_STATUS\r
EFIAPI\r
VirtioFsSimpleFileFlush (\r
  IN EFI_FILE_PROTOCOL *This\r
  )\r
{\r
  VIRTIO_FS_FILE *VirtioFsFile;\r
  VIRTIO_FS      *VirtioFs;\r
  EFI_STATUS     Status;\r
\r
  VirtioFsFile = VIRTIO_FS_FILE_FROM_SIMPLE_FILE (This);\r
  VirtioFs     = VirtioFsFile->OwnerFs;\r
\r
  if (!VirtioFsFile->IsOpenForWriting) {\r
    return EFI_ACCESS_DENIED;\r
  }\r
\r
  //\r
  // FUSE_FLUSH is for regular files only.\r
  //\r
  if (!VirtioFsFile->IsDirectory) {\r
    Status = VirtioFsFuseFlush (VirtioFs, VirtioFsFile->NodeId,\r
               VirtioFsFile->FuseHandle);\r
    if (EFI_ERROR (Status)) {\r
      return Status;\r
    }\r
  }\r
\r
  Status = VirtioFsFuseFsyncFileOrDir (VirtioFs, VirtioFsFile->NodeId,\r
             VirtioFsFile->FuseHandle, VirtioFsFile->IsDirectory);\r
  return Status;\r
}\r