diff options
| author |   Vitaly Kuznetsov <vkuznets@redhat.com> | 2016-12-07 01:16:26 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-10 21:46:40 +0100 |
| commit | 3c7630d35009e6635e5b58d62de554fd5b6db5df (patch) | |
| tree | b853b5f9fdac4a0f7c4c62b6ac359db64858c8cc /drivers/hv | |
| parent | hv: allocate synic pages for all present CPUs (diff) | |
| download | linux-dev-3c7630d35009e6635e5b58d62de554fd5b6db5df.tar.xz linux-dev-3c7630d35009e6635e5b58d62de554fd5b6db5df.zip | |
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.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/hv.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index dc11296d50fd..13937563c9db 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -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. */ |