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[Xen-devel] CPU offlining patch xen-unstable:21049
| To: | "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] CPU offlining patch xen-unstable:21049 |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Thu, 15 Apr 2010 09:31:21 +0100 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Thu, 15 Apr 2010 01:32:19 -0700 |
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| Thread-topic: | CPU offlining patch xen-unstable:21049 |
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Yunhong, Just thinking some more about the above patch, which made the xenpf_lock and systctl_lock both retryable. I don't think this is necessary after all, since cpu_down() is called via continue_hypercall_on_cpu(), and hence these locks are released before the hypercall continuation is executed. Hence we should be able to revert a couple of hunks of this changeset, as only cpu_add_remove_lock is actually a problem, wouldn't you agree? -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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