/**
* mark_buffer_clean - mark a buffer as clean
* @buf: pointer to the buffer
*
* This function marks the given buffer as clean, tracks
* this in active_buffers and turns off the dirty LED if required.
*/
void mark_buffer_clean(buffer_t *buf) {
if (buf->dirty) {
buf->dirty = 0;
active_buffers -= 16;
if (get_dirty_buffer_count() == 0)
set_dirty_led(0);
}
}
/**
* update_leds - set LEDs to correspond to the buffer status
*
* This function sets the busy/dirty LEDs to correspond to the current state
* of the buffers, i.e. busy on of at least one non-system buffer is
* allocated and dirty on if at least one buffer is dirty.
* Call if you have manually changed the LEDs and you want to restore the
* "default" state.
*/
void update_leds(void) {
set_busy_led(active_buffers != 0);
set_dirty_led(get_dirty_buffer_count() != 0);
}