Re: [Qemu-devel] [Qemu-block] [PATCH v6 3/4] blockdev: Add dynamic module loading for block drivers

[Stefan Hajnoczi <stefanha@gmail.com>]

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On Tue, Aug 02, 2016 at 10:12:16AM -0400, Colin Lord wrote:
> Extend the current module interface to allow for block drivers to be
> loaded dynamically on request. The only block drivers that can be
> converted into modules are the drivers that don't perform any init
> operation except for registering themselves.
> 
> In addition, only the protocol drivers are being modularized, as they
> are the only ones which see significant performance benefits. The format
> drivers do not generally link to external libraries, so modularizing
> them is of no benefit from a performance perspective.
> 
> All the necessary module information is located in a new structure found
> in module_block.h
> 
> Signed-off-by: Marc Marí <markmb@redhat.com>
> Signed-off-by: Colin Lord <clord@redhat.com>
> ---
>  Makefile              |  3 ---
>  block.c               | 62 +++++++++++++++++++++++++++++++++++++++++++++------
>  block/Makefile.objs   |  3 +--
>  include/qemu/module.h |  3 +++
>  util/module.c         | 38 +++++++++----------------------
>  5 files changed, 70 insertions(+), 39 deletions(-)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

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