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Re: [PATCH] xen/link: Move SCHEDULER_ARRAY into .rodata

To: "Orzel, Michal" <michal.orzel@xxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>

From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Date: Fri, 13 Nov 2026 11:08:06 +0000

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Cc: Jan Beulich <jbeulich@xxxxxxxx>, Roger Pau Monné <roger@xxxxxxxxxxxxxx>, Teddy Astie <teddy.astie@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>, Baptiste Le Duc <baptiste.le-duc@xxxxxxxxxx>, Timothy Pearson <tpearson@xxxxxxxxxxxxxxxxxxxxx>

Delivery-date: Fri, 13 Nov 2026 11:08:09 +0000

List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 13/11/2026 9:47 am, Andrew Cooper wrote: > On 13/11/2026 7:31 am, Orzel, Michal wrote: >> On 12-Nov-26 19:36, Andrew Cooper wrote: >>> This is a list of pointers which is only ever read. >> I think that's not true. See sched_test_func() macro in scheduler_init() that >> assigns NULL in case the scheduler does not implement the required hook. > Lovely, sorry I misread the const on the name there. > > sched_test_func() on the other hand can be delete. We can force those > checks at compiletime. > > But, there's the global init case. None of the current global init > hooks do anything except return 0, but I suppose in principle that may > want to stay. > > I suppose I'll keep SCHEDULER_ARRAY in read_mostly for now. Actually no. They should be in ro_after_init. ~Andrew

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