glass	2019-02-04 08:30:56 +0900 (Mon, 04 Feb 2019)

  New Revision: 66996

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=66996

  Log:
    io.c: get src_size from stp. Fix r66995.

  Modified files:
    trunk/io.c
Index: io.c
===================================================================
--- io.c	(revision 66995)
+++ io.c	(revision 66996)
@@ -10863,6 +10863,7 @@ nogvl_copy_file_range(struct copy_stream https://github.com/ruby/ruby/blob/trunk/io.c#L10863
     if (!S_ISREG(stp->src_stat.st_mode))
         return 0;
 
+    src_size = stp->src_stat.st_size;
     src_offset = stp->src_offset;
     if (src_offset >= (off_t)0) {
 	src_offset_ptr = &src_offset;

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