Commit 3c6c4348 authored by Pavel Dovgalyuk's avatar Pavel Dovgalyuk Committed by Kevin Wolf
Browse files

block: implement bdrv_snapshot_goto for blkreplay 



This patch enables making snapshots with blkreplay used in
block devices.
This function is required to make bdrv_snapshot_goto without
calling .bdrv_open which is not implemented.

Signed-off-by: default avatarPavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Acked-by: default avatarKevin Wolf <kwolf@redhat.com>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
parent 6caaad46

block/blkreplay.c

+8 −0
Original line number Diff line number Diff line
@@ -126,6 +126,12 @@ static int coroutine_fn blkreplay_co_flush(BlockDriverState *bs) 
    return ret;

}



static int blkreplay_snapshot_goto(BlockDriverState *bs,

                                   const char *snapshot_id)

{

    return bdrv_snapshot_goto(bs->file->bs, snapshot_id, NULL);

}



static BlockDriver bdrv_blkreplay = {

    .format_name            = "blkreplay",

    .instance_size          = 0,
@@ -140,6 +146,8 @@ static BlockDriver bdrv_blkreplay = { 
    .bdrv_co_pwrite_zeroes  = blkreplay_co_pwrite_zeroes,

    .bdrv_co_pdiscard       = blkreplay_co_pdiscard,

    .bdrv_co_flush          = blkreplay_co_flush,



    .bdrv_snapshot_goto     = blkreplay_snapshot_goto,

};



static void bdrv_blkreplay_init(void)