Commit eae041fe authored by Max Reitz's avatar Max Reitz Committed by Kevin Wolf
Browse files

block: Add bdrv_get_specific_info 



Add a function for retrieving an ImageInfoSpecific object from a block
driver.

Signed-off-by: default avatarMax Reitz <mreitz@redhat.com>
Reviewed-by: default avatarEric Blake <eblake@redhat.com>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
parent f2bb8a8a

block.c

+9 −0
Original line number Diff line number Diff line
@@ -3322,6 +3322,15 @@ int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi) 
    return drv->bdrv_get_info(bs, bdi);

}



ImageInfoSpecific *bdrv_get_specific_info(BlockDriverState *bs)

{

    BlockDriver *drv = bs->drv;

    if (drv && drv->bdrv_get_specific_info) {

        return drv->bdrv_get_specific_info(bs);

    }

    return NULL;

}



int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf,

                      int64_t pos, int size)

{

block/qapi.c

+3 −0
Original line number Diff line number Diff line
@@ -134,6 +134,9 @@ void bdrv_query_image_info(BlockDriverState *bs, 
        info->dirty_flag = bdi.is_dirty;

        info->has_dirty_flag = true;

    }

    info->format_specific     = bdrv_get_specific_info(bs);

    info->has_format_specific = info->format_specific != NULL;



    backing_filename = bs->backing_file;

    if (backing_filename[0] != '\0') {

        info->backing_filename = g_strdup(backing_filename);

include/block/block.h

+1 −0
Original line number Diff line number Diff line
@@ -335,6 +335,7 @@ int bdrv_get_flags(BlockDriverState *bs); 
int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,

                          const uint8_t *buf, int nb_sectors);

int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi);

ImageInfoSpecific *bdrv_get_specific_info(BlockDriverState *bs);

void bdrv_round_to_clusters(BlockDriverState *bs,

                            int64_t sector_num, int nb_sectors,

                            int64_t *cluster_sector_num,

include/block/block_int.h

+1 −0
Original line number Diff line number Diff line
@@ -168,6 +168,7 @@ struct BlockDriver { 
    int (*bdrv_snapshot_load_tmp)(BlockDriverState *bs,

                                  const char *snapshot_name);

    int (*bdrv_get_info)(BlockDriverState *bs, BlockDriverInfo *bdi);

    ImageInfoSpecific *(*bdrv_get_specific_info)(BlockDriverState *bs);



    int (*bdrv_save_vmstate)(BlockDriverState *bs, QEMUIOVector *qiov,

                             int64_t pos);