On 09/15/13 16:31, Lars-Peter Clausen wrote:
> Use wake_up_interruptible_poll() instead of wake_up_interruptible() to only wake
> up those threads that listen for input poll notifications.
>
> Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
You learn something new every day (or several things today!)...
Applied to the togreg branch of iio.git
Thanks,
Jonathan
> ---
> drivers/iio/kfifo_buf.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c
> index a923c78..1bea41b 100644
> --- a/drivers/iio/kfifo_buf.c
> +++ b/drivers/iio/kfifo_buf.c
> @@ -7,6 +7,7 @@
> #include <linux/mutex.h>
> #include <linux/iio/kfifo_buf.h>
> #include <linux/sched.h>
> +#include <linux/poll.h>
>
> struct iio_kfifo {
> struct iio_buffer buffer;
> @@ -102,7 +103,7 @@ static int iio_store_to_kfifo(struct iio_buffer *r,
> if (ret != 1)
> return -EBUSY;
> r->stufftoread = true;
> - wake_up_interruptible(&r->pollq);
> + wake_up_interruptible_poll(&r->pollq, POLLIN | POLLRDNORM);
>
> return 0;
> }
>
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