patch "hv: init percpu_list in hv_synic_alloc()" added to char-misc-next

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 my char-misc git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-next branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will also be merged in the next major kernel release during the merge window.

If you have any questions about this process, please let me know.

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

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(-)

index dc11296d50fd..13937563c9db 100644
@@ -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.
 	 */

2.11.0