Patch "hv: init percpu_list in hv_synic_alloc()" has been added to the 4.10-stable tree

This is a note to let you know that I've just added the patch titled

hv: init percpu_list in hv_synic_alloc()

to the 4.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
hv-init-percpu_list-in-hv_synic_alloc.patch
and it can be found in the queue-4.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Vitaly Kuznetsov <[email protected]>
Date: Wed, 7 Dec 2016 01:16:26 -0800
Subject: hv: init percpu_list in hv_synic_alloc()

From: Vitaly Kuznetsov <[email protected]>

commit 3c7630d35009e6635e5b58d62de554fd5b6db5df upstream.

Initializing hv_context.percpu_list in hv_synic_alloc() helps to prevent a crash in percpu_channel_enq() when not all CPUs were online during initialization and it naturally belongs there.

---
 drivers/hv/hv.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

@@ -457,6 +457,8 @@ int hv_synic_alloc(void)
 			pr_err("Unable to allocate post msg page\n");
 			goto err;
 		}
+
+		INIT_LIST_HEAD(&hv_context.percpu_list[cpu]);
 	}
 
 	return 0;

@@ -552,8 +554,6 @@ void hv_synic_init(void *arg)
 	rdmsrl(HV_X64_MSR_VP_INDEX, vp_index);
 	hv_context.vp_index[cpu] = (u32)vp_index;
 
-	INIT_LIST_HEAD(&hv_context.percpu_list[cpu]);
-
 	/*
 	 * Register the per-cpu clockevent source.
 	 */

Patches currently in stable-queue which might be from [email protected] are

queue-4.10/hv-init-percpu_list-in-hv_synic_alloc.patch queue-4.10/drivers-hv-vmbus-raise-retry-wait-limits-in-vmbus_post_msg.patch queue-4.10/hv-allocate-synic-pages-for-all-present-cpus.patch queue-4.10/hv-don-t-reset-hv_context.tsc_page-on-crash.patch