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| author | Jason Wang <jasowang@redhat.com> | 2018-03-26 16:10:23 +0800 |
|---|---|---|
| committer | Alistair Strachan <astrachan@google.com> | 2019-01-15 17:08:37 -0800 |
| commit | 579cd6fe1e70cdba651eeac567df3ad0dc2272ad (patch) | |
| tree | b05990d728aeefb9cec7624c6aba1e960db8a605 /include/linux/debugobjects.h | |
| parent | b2696b4a37bdb9f2716017859a88b95ca6e30088 (diff) | |
UPSTREAM: vhost_net: add missing lock nesting notation
[ Upstream commit aaa3149bbee9ba9b4e6f0bd6e3e7d191edeae942 ]
We try to hold TX virtqueue mutex in vhost_net_rx_peek_head_len()
after RX virtqueue mutex is held in handle_rx(). This requires an
appropriate lock nesting notation to calm down deadlock detector.
Fixes: 0308813724606 ("vhost_net: basic polling support")
Reported-by: syzbot+7f073540b1384a614e09@syzkaller.appspotmail.com
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 1cb81756b7c3813f7d65d3c6bb1133cb53b69775)
Bug: 121166534
Test: Ran cuttlefish with android-4.4 + VSOCKETS, VMWARE_VMCI_VSOCKETS
Signed-off-by: Alistair Strachan <astrachan@google.com>
Change-Id: Ia72badca8f5f92095cfad91051fe47f76e6b03b7
Diffstat (limited to 'include/linux/debugobjects.h')
0 files changed, 0 insertions, 0 deletions