WL#4802: Apply Google SMP patches to Server

Affects: Server-5.4   —   Status: Complete   —   Priority: Medium

MySQL 5.4.0:
To improve MySQL Server scalability, apply the Google patches from the 
launchpad tree 5.1-patches maintained by Mark Callaghan:
Applied to MySQL 5.4.0.

Community contribution; for details, follow the link to launchpad:
and the MySQL 5.4.0 description:
Community contribution; no further LLD needed.