Re: [Qemu-block] [Qemu-devel] Question about block driver

[Kevin Wolf]

[Cc: qemu-block]

Am 30.04.2015 um 11:11 hat Wen Congyang geschrieben:
> Some drivers use bdrv_open, while the other dirvers use bdrv_file_open().
> What is the difference between bdrv_open() and bdrv_file_open()?

bdrv_file_open() is used by protocol drivers that don't need any other
driver to work (e.g. raw-posix), bdrv_open() is used by format drivers
that need a bs->file (e.g. raw or qcow2).

They used to have different parameters originally, but nowadays that's
the only difference.

Kevin