> -----Original Message----- > From: deve On Behalf of K. Y. Srinivasan > Sent: Monday, July 20, 2015 11:37 > > From: Christopher Oo > > Fixes a bug where previously hv_ringbuffer_read would pass in the old > number of bytes available to read instead of the expected old read index > when calculating when to signal to the host that the ringbuffer is empty. > Since the previous write size is already saved, also changes the > hv_need_to_signal_on_read to use the previously read value rather than > recalculating it. > > diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c > @@ -560,7 +552,7 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info > *inring_info, void *buffer, > > spin_unlock_irqrestore(&inring_info->ring_lock, flags); > > - *signal = hv_need_to_signal_on_read(old_read, inring_info); > + *signal = hv_need_to_signal_on_read(bytes_avail_towrite, inring_info); > > return 0; > } Good catch! -- Dexuan _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
