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Re: [Qemu-block] [PATCH 03/11] util: use RCU accessors for notifiers
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-block] [PATCH 03/11] util: use RCU accessors for notifiers |
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Date: |
Mon, 10 Jul 2017 16:52:06 +0100 |
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User-agent: |
Mutt/1.8.0 (2017-02-23) |
On Thu, Jul 06, 2017 at 06:38:20PM +0200, Paolo Bonzini wrote:
> void notifier_list_notify(NotifierList *list, void *data)
> {
> Notifier *notifier, *next;
>
> - QLIST_FOREACH_SAFE(notifier, &list->notifiers, node, next) {
> + QLIST_FOREACH_SAFE_RCU(notifier, &list->notifiers, node, next) {
> notifier->notify(notifier, data);
> }
> }
Who calls rcu_read_lock() or is it unnecessary?
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[Qemu-block] [PATCH 05/11] block-backup: add reqs_lock, Paolo Bonzini, 2017/07/06
[Qemu-block] [PATCH 04/11] block: make before-write notifiers thread-safe, Paolo Bonzini, 2017/07/06
[Qemu-block] [PATCH 06/11] block: add a few more notes on locking, Paolo Bonzini, 2017/07/06
[Qemu-block] [PATCH 07/11] block: do not acquire AioContext in check_to_replace_node, Paolo Bonzini, 2017/07/06