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OvmfPkg/VirtioFsDxe: implement EFI_FILE_PROTOCOL.Flush()

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For directories, implement EFI_FILE_PROTOCOL.Flush() by sending the
FUSE_FSYNCDIR command to the Virtio Filesystem device.

For regular files, send FUSE_FLUSH, followed by FUSE_FSYNC.

Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3097
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20201216211125.19496-38-lersek@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
This commit is contained in:
Laszlo Ersek 2020-12-16 22:11:14 +01:00 committed by mergify[bot]
parent eb0b79586f
commit 867cb9f60c
1 changed files with 25 additions and 1 deletions
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26
OvmfPkg/VirtioFsDxe/SimpleFsFlush.c
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@ -14,5 +14,29 @@ VirtioFsSimpleFileFlush (
IN EFI_FILE_PROTOCOL *This
)
{
return EFI_NO_MEDIA;
VIRTIO_FS_FILE *VirtioFsFile;
VIRTIO_FS *VirtioFs;
EFI_STATUS Status;
VirtioFsFile = VIRTIO_FS_FILE_FROM_SIMPLE_FILE (This);
VirtioFs = VirtioFsFile->OwnerFs;
if (!VirtioFsFile->IsOpenForWriting) {
return EFI_ACCESS_DENIED;
}
//
// FUSE_FLUSH is for regular files only.
//
if (!VirtioFsFile->IsDirectory) {
Status = VirtioFsFuseFlush (VirtioFs, VirtioFsFile->NodeId,
VirtioFsFile->FuseHandle);
if (EFI_ERROR (Status)) {
return Status;
}
}
Status = VirtioFsFuseFsyncFileOrDir (VirtioFs, VirtioFsFile->NodeId,
VirtioFsFile->FuseHandle, VirtioFsFile->IsDirectory);
return Status;
}