This patchset applies on net-next. I think I found a problem with the patch submitted by Laura Abbott ( https://lkml.org/lkml/2016/2/4/711 ): we might miss wakeups. Since the condition is not checked between the prepare_to_wait and the schedule(), if a wakeup happens after the condition is checked but before the sleep happens, and we miss it. ( A description of the problem can be found here: http://www.makelinux.net/ldd3/chp-6-sect-2 ).
The first patch reverts the previous broken patch, while the second patch properly fixes the sleep-while-waiting issue. Claudio Imbrenda (2): Revert "vsock: Fix blocking ops call in prepare_to_wait" AF_VSOCK: Shrink the area influenced by prepare_to_wait net/vmw_vsock/af_vsock.c | 155 ++++++++++++++++++++++++++--------------------- 1 file changed, 87 insertions(+), 68 deletions(-) -- 1.9.1
