Bug #39939: DROP TABLE/DISCARD TABLESPACE takes long time in buf_LRU_invalidate_tablespace()

Detailed revision comments:

r2742 | inaam | 2008-10-08 22:02:15 +0300 (Wed, 08 Oct 2008) | 11 lines
branches/5.1:

Improve implementation of buf_LRU_invalidate_tablespace by attempting
hash index drop in batches instead of doing it one by one.

Reviewed by: Heikki, Sunny, Marko
Approved by: Heikki