X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=mm%2Fbacking-dev.c;h=e5de3781d3feed5b6f156b064b4af8bb79871fed;hb=457e1a8afbcf5deffa501f2e9829526c18ed55b5;hp=f50a2811f9dc86b876d24e75333558583c075f1d;hpb=c45aa055c32b488fc3fd73c760df372b09acf69a;p=powerpc.git

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index f50a2811f9..e5de3781d3 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -55,6 +55,22 @@ long congestion_wait(int rw, long timeout)
 }
 EXPORT_SYMBOL(congestion_wait);
 
+long congestion_wait_interruptible(int rw, long timeout)
+{
+	long ret;
+	DEFINE_WAIT(wait);
+	wait_queue_head_t *wqh = &congestion_wqh[rw];
+
+	prepare_to_wait(wqh, &wait, TASK_INTERRUPTIBLE);
+	if (signal_pending(current))
+		ret = -ERESTARTSYS;
+	else
+		ret = io_schedule_timeout(timeout);
+	finish_wait(wqh, &wait);
+	return ret;
+}
+EXPORT_SYMBOL(congestion_wait_interruptible);
+
 /**
  * congestion_end - wake up sleepers on a congested backing_dev_info
  * @rw: READ or WRITE