Re: [PATCH 1/2] liveupdate: Use refcount_t for FLB reference counts

[Samiullah Khawaja]

On Thu, Apr 23, 2026 at 05:40:28PM +0000, David Matlack wrote:
> Use refcount_t instead of a raw integer to keep track of references on
> incoming and outgoing FLBs. Using refcount_t provides protection from
> overflow, underflow, and other issues.
>
> Fixes: cab056f2aae7 ("liveupdate: luo_flb: introduce File-Lifecycle-Bound global state")
> Signed-off-by: David Matlack <dmatlack@xxxxxxxxxx>
> ---
> include/linux/liveupdate.h  |  3 ++-
> kernel/liveupdate/luo_flb.c | 22 ++++++++++------------
> 2 files changed, 12 insertions(+), 13 deletions(-)

Reviewed-by: Samiullah Khawaja <skhawaja@xxxxxxxxxx>