From 51e862e793e7f2ed363a4a563adbe119f5a8aba8 Mon Sep 17 00:00:00 2001
From: Alexander Gorshenev <alexander.gorshenev@jetbrains.com>
Date: Fri, 15 Mar 2019 22:56:39 +0300
Subject: [PATCH] Fix file descriptor unlimited growth.

---
 .../kotlin/backend/common/library/CombinedIrFileAccessor.kt   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/library/CombinedIrFileAccessor.kt b/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/library/CombinedIrFileAccessor.kt
index ddc81402056..30be262de2a 100644
--- a/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/library/CombinedIrFileAccessor.kt
+++ b/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/library/CombinedIrFileAccessor.kt
@@ -31,7 +31,9 @@ fun File.map(mode: FileChannel.MapMode = FileChannel.MapMode.READ_ONLY,
         if (mode == FileChannel.MapMode.READ_ONLY) "r" else "rw")
     val fileSize = if (mode == FileChannel.MapMode.READ_ONLY)
         file.length() else size.also { assert(size != -1L) }
-    return file.channel.map(mode, start, fileSize) // Shall we .also { file.close() }?
+    val channel = file.channel
+    return channel.map(mode, start, fileSize)
+        .also { channel.close() } // Channel close closes the file also.
 }
 
 class CombinedIrFileReader(file: File) {