[PATCH 0/2] liveupdate: FLB refcounting improvements

[Pasha Tatashin]

Please include kexec at lists.infradead.org so the patches are tested by 
Sashiko, and added to patchwork that we are using to maintaine live 
update work.

Pasha

On 04-23 17:40, David Matlack wrote:
> This series can be found on GitHub:
> 
>   https://github.com/dmatlack/linux/tree/liveupdate/flb/refcount/v1
> 
> This series has 2 patches to improve how FLB refcounting works in
> preparation for using FLB in the PCI core. The first patch converts the
> existing refcounting to use refcount_t, and the second patch allows
> users of the incoming FLB to hold references to the FLB to avoid it
> getting freed.
> 
> Users of the outgoing FLB don't need to take an extra reference yet
> since it's always done in the context of a preserve/unpreserve file
> callback, which are already synchronized with outgoing FLB creation
> and destruction.
> 
> This series has been tested against the existing Live Update selftests
> (liveupdate, luo_kexec_simple, and luo_multi_session) on an Intel EMR
> host.
> 
> 
> David Matlack (2):
>   liveupdate: Use refcount_t for FLB reference counts
>   liveupdate: Reference count incoming FLB data
> 
>  include/linux/liveupdate.h  |  9 ++++++-
>  kernel/liveupdate/luo_flb.c | 52 ++++++++++++++++++-------------------
>  lib/tests/liveupdate.c      |  3 +++
>  3 files changed, 37 insertions(+), 27 deletions(-)
> 
> 
> base-commit: 2a4c0c11c0193889446cdb6f1540cc2b9aff97dd
> -- 
> 2.54.0.rc2.544.gc7ae2d5bb8-goog
>