Re: [PATCH v2 3/4] block: move block exports to libblockdev

[Eric Blake]

On 9/29/20 7:55 AM, Stefan Hajnoczi wrote:
> Block exports are used by softmmu, qemu-storage-daemon, and qemu-nbd.
> They are not used by other programs and are not otherwise needed in
> libblock.
>
> Undo the recent move of blockdev-nbd.c from blockdev_ss into block_ss.
> Since bdrv_close_all() (libblock) calls blk_exp_close_all()
> (libblockdev) a stub function is required..
>
> Make qemu-ndb.c use signal handling utility functions instead of

nbd

> duplicating the code. This helps because os-posix.c is in libblockdev
> and it depends on a qemu_system_killed() symbol that qemu-nbd.c lacks.
> Once we use the signal handling utility functions we also end up
> providing the necessary symbol.
>
> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
> ---

Reviewed-by: Eric Blake <eblake@redhat.com>

--
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
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