On Mon, Nov 21, 2011 at 12:40:20PM -0500, Jeff Layton wrote:
> Allow the freezer to skip wait_on_bit_killable sleeps in the sunrpc
> layer. This should allow suspend and hibernate events to proceed, even
> when there are RPC's pending on the wire.
>
> Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
> ---
> include/linux/freezer.h | 12 ++++++++++++
> net/sunrpc/sched.c | 3 ++-
> 2 files changed, 14 insertions(+), 1 deletions(-)
>
> diff --git a/include/linux/freezer.h b/include/linux/freezer.h
> index a5386e3..8b60dd0 100644
> --- a/include/linux/freezer.h
> +++ b/include/linux/freezer.h
> @@ -135,6 +135,16 @@ static inline void set_freezable_with_signal(void)
> }
>
> /*
> + * Freezer-friendly macro around schedule() in the kernel.
> + */
> +#define freezable_schedule() \
> +({ \
> + freezer_do_not_count(); \
> + schedule(); \
> + freezer_count(); \
Don't we want try_to_freeze() here? If the freezer thought the task
was safe to skip, it better stay inside freezer until the freezing
condition is lifted.
Thanks.
--
tejun
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