Lock open mutex decrease contention

Registered by Vadim Tkachenko

We need to port Facebook's patch which decreases contention on Lock_open mutex
http://www.facebook.com/note.php?note_id=387111245932

Blueprint information

Status:
Not started
Approver:
Percona developers
Priority:
Not
Drafter:
Vadim Tkachenko
Direction:
Needs approval
Assignee:
None
Definition:
New
Series goal:
None
Implementation:
Unknown
Milestone target:
None

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