block: Allow bdrv_flush to return errors

This changes bdrv_flush to return 0 on success and -errno in case of failure.
It's a requirement for implementing proper error handle in users of bdrv_flush.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
This commit is contained in:
Kevin Wolf 2010-10-21 16:43:43 +02:00
parent 5dba48a882
commit 205ef7961f
13 changed files with 45 additions and 25 deletions

View file

@ -397,9 +397,9 @@ static void blkdebug_close(BlockDriverState *bs)
}
}
static void blkdebug_flush(BlockDriverState *bs)
static int blkdebug_flush(BlockDriverState *bs)
{
bdrv_flush(bs->file);
return bdrv_flush(bs->file);
}
static BlockDriverAIOCB *blkdebug_aio_flush(BlockDriverState *bs,