Github user kiszk commented on a diff in the pull request:
https://github.com/apache/spark/pull/19222#discussion_r179497501
--- Diff:
common/unsafe/src/main/java/org/apache/spark/unsafe/memory/MemoryBlock.java ---
@@ -183,15 +184,13 @@ protected void checkSubBlockRange(long offset, long
size) {
public static final void copyMemory(
MemoryBlock src, long srcOffset, MemoryBlock dst, long dstOffset,
long length) {
- assert(length <= (src.length - src.getBaseOffset()) &&
- length <= (dst.length - dst.getBaseOffset()));
+ assert(length <= src.length && length <= dst.length);
Platform.copyMemory(src.getBaseObject(), src.getBaseOffset() +
srcOffset,
--- End diff --
Oh, i see.
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