Fix typo in comment

Author: Hou, Zhijie

diff --git a/src/backend/storage/ipc/procsignal.c b/src/backend/storage/ipc/procsignal.c
index 4fa385b0ece46b3f9693bea990e515ba1616e2ef..ffe67acea1ce1fa64eaf24e68df4aa439e716d06 100644 (file)
--- a/src/backend/storage/ipc/procsignal.c
+++ b/src/backend/storage/ipc/procsignal.c
@@ -430,7 +430,7 @@ WaitForProcSignalBarrier(uint64 generation)
  * cannot safely access the barrier generation inside the signal handler as
  * 64bit atomics might use spinlock based emulation, even for reads. As this
  * routine only gets called when PROCSIG_BARRIER is sent that won't cause a
- * lot fo unnecessary work.
+ * lot of unnecessary work.
  */
 static void
 HandleProcSignalBarrierInterrupt(void)