X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=README;h=e5c04b179cae49d202a49809d09a76f714ada711;hp=b47fe48c2c181e833c633c8b6b973ddcbf0f5186;hb=074d8438a30f7da8ae12eb94caff69c37fb576bd;hpb=a669219f71cabe41a5832bdda98c94e4ad63e529

diff --git a/README b/README
index b47fe48..e5c04b1 100644
--- a/README
+++ b/README
@@ -70,6 +70,15 @@ Writing
 	After, synchronize_rcu() must be called. When it returns, the old
 	values are not in usage anymore.
 
+Usage of liburcu-defer
+
+	* #include <urcu-defer.h>
+	* Link with "-lurcu-defer"
+	* Provides call_rcu() primitive to enqueue delayed callbacks. Queued
+	  callbacks are executed in batch periodically after a grace period.
+	  Do _not_ use call_rcu() within a read-side critical section, because
+	  it may call synchronize_rcu() if the thread queue is full.
+
 Being careful with signals
 
 	The liburcu library uses signals internally. The signal handler is