Re: [PATCH] KVM: x86/xen: Convert evtchn_ports from IDR to XArray
Furkan Çalışkan <[email protected]>
| Newsgroups | gmane.linux.kernel,gmane.comp.emulators.kvm.devel,gmane.comp.emulators.xen.devel |
|---|---|
| Message-ID | <[email protected]> |
On 7/7/26 12:16, David Woodhouse wrote: > On Mon, 2026-07-06 at 11:13 +0300, Furkan Caliskan wrote: >> IDR is deprecated in favor of XArray: see >> Documentation/core-api/idr.rst. Convert evtchn_ports accordingly. >> >> kvm_xen_eventfd_assign()'s single-slot idr_alloc() becomes >> xa_insert(), since it was really an insert-at-index, not an >> allocation: -EBUSY replaces -ENOSPC, still mapped to -EEXIST. >> >> kvm_xen_hcall_evtchn_send() drops its explicit rcu_read_lock(), >> since xa_load() takes its own RCU read-side section internally. >> evtchnfd's lifetime is still guaranteed by kvm->srcu. >> >> xen_lock is left in place: it protects state beyond the map itself. >> >> Signed-off-by: Furkan Caliskan <[email protected]> > > Reviewed-by: David Woodhouse <[email protected]> > > Thanks. Ping?