[stgt] [PATCH] Add support for modular backends

[FUJITA Tomonori]

On Thu, 19 Sep 2013 17:26:02 -0700
Ronnie Sahlberg <ronniesahlberg at gmail.com> wrote:

> Link tgtd with -E so all symbols are available for runtime linking
> by dynamically loaded objects.
> Build some modules, such as bs_{aio|rbd} as shared objects and
> install them under /usr/lib/tgtd/backing-store
> Add support so that when tgtd is started and initializes the backends
> it will traverse /usr/lib/tgtd/backing-store and dynamically load
> all object files.
> 
> This allows to build and distribute backends as separate packages than tgtd.
> TGTD can be shipped with only base dependencies and basic backend support
> and then those backends that include extra dependencies can be shipped
> and installed separately.
> 
> Signed-off-by: Ronnie Sahlberg <ronniesahlberg at gmail.com>
> ---
>  usr/Makefile |   35 ++++++++++++++++++++++++-----------
>  usr/bs.c     |   52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
>  usr/bs_aio.c |    2 +-
>  usr/bs_rbd.c |    2 +-
>  4 files changed, 78 insertions(+), 13 deletions(-)

Applied, thanks.
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