diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2016-12-07 12:16:26 +0300 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2017-06-05 23:16:49 +0300 |
| commit | 5aa052b223ec1c6a9669f542bfcad6f07c377210 (patch) | |
| tree | 5d169685229fc469759a17467275b6adb6426e7c /drivers/hv | |
| parent | c5398ac16c168d9a6495cf492be8bcd1a48a8da2 (diff) | |
| download | linux-5aa052b223ec1c6a9669f542bfcad6f07c377210.tar.xz | |
hv: init percpu_list in hv_synic_alloc()
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.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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 1010eae3a7c8..b83afe484415 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -295,6 +295,8 @@ 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; @@ -386,8 +388,6 @@ 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]); return; } |