Re: [PATCH 05/12] ipc/util.c: correct comment in ipc_obtain_object_check

[Davidlohr Bueso]

On Mon, 09 Jul 2018, Manfred Spraul wrote:

> The comment that explains ipc_obtain_object_check is wrong:
> The function checks the sequence number, not the reference
> counter.
> Note that checking the reference counter would be meaningless:
> The reference counter is decreased without holding any locks,
> thus an object with kern_ipc_perm.deleted=true may disappear at
> the end of the next rcu grace period.
>
> Signed-off-by: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx>
> Cc: Davidlohr Bueso <dave@xxxxxxxxxxxx>

Reviewed-by: Davidlohr Bueso <dbueso@xxxxxxx>