On 11/11/21 11:47, Peter Zijlstra wrote:
This technically could be RCU_INIT_POINTER but it's not worth a respin.
There are dozens of other occurrences, and if somebody wanted they
could use Coccinelle to fix all of them.
I've been pushing the other way, trying to get rid of RCU_INIT_POINTER()
si
On Thu, Nov 11, 2021 at 08:26:58AM +0100, Paolo Bonzini wrote:
> On 11/11/21 03:07, Sean Christopherson wrote:
> > EXPORT_SYMBOL_GPL(perf_register_guest_info_callbacks);
> > int perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks
> > *cbs)
> > {
> > - perf_guest_cbs = NU
On 11/11/21 03:07, Sean Christopherson wrote:
Protect perf_guest_cbs with RCU to fix multiple possible errors. Luckily,
all paths that read perf_guest_cbs already require RCU protection, e.g. to
protect the callback chains, so only the direct perf_guest_cbs touchpoints
need to be modified.
Bug
Protect perf_guest_cbs with RCU to fix multiple possible errors. Luckily,
all paths that read perf_guest_cbs already require RCU protection, e.g. to
protect the callback chains, so only the direct perf_guest_cbs touchpoints
need to be modified.
Bug #1 is a simple lack of WRITE_ONCE/READ_ONCE beha
