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-rw-r--r--sql/uniques.cc6
1 files changed, 3 insertions, 3 deletions
diff --git a/sql/uniques.cc b/sql/uniques.cc
index 86d8d6c7050..00112d714c7 100644
--- a/sql/uniques.cc
+++ b/sql/uniques.cc
@@ -525,7 +525,7 @@ static bool merge_walk(uchar *merge_buffer, size_t merge_buffer_size,
top->base= merge_buffer + (top - begin) * piece_size;
top->max_keys= max_key_count_per_piece;
bytes_read= read_to_buffer(file, top, key_length);
- if (bytes_read == (uint) (-1))
+ if (unlikely(bytes_read == (uint) (-1)))
goto end;
DBUG_ASSERT(bytes_read);
queue_insert(&queue, (uchar *) top);
@@ -554,7 +554,7 @@ static bool merge_walk(uchar *merge_buffer, size_t merge_buffer_size,
memcpy(save_key_buff, old_key, key_length);
old_key= save_key_buff;
bytes_read= read_to_buffer(file, top, key_length);
- if (bytes_read == (uint) (-1))
+ if (unlikely(bytes_read == (uint) (-1)))
goto end;
else if (bytes_read > 0) /* top->key, top->mem_count are reset */
queue_replace_top(&queue); /* in read_to_buffer */
@@ -602,7 +602,7 @@ static bool merge_walk(uchar *merge_buffer, size_t merge_buffer_size,
}
while (--top->mem_count);
bytes_read= read_to_buffer(file, top, key_length);
- if (bytes_read == (uint) (-1))
+ if (unlikely(bytes_read == (uint) (-1)))
goto end;
}
while (bytes_read);