Bug 206444

Summary:	[bmalloc] Replace some usage of UniqueLockHolder with cheaper LockHolder
Product:	WebKit	Reporter:	Basuke Suzuki <Basuke.Suzuki>
Component:	bmalloc	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	ggaren
Priority:	P2
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Basuke Suzuki 2020-01-17 14:26:48 PST

unique_lock is required for conditional variable, but some function takes unique_lock with no meaning. Because std::lock_guard is much cheaper on runtime, they should use std::lock_guard instead.

Comment 1 Basuke Suzuki 2020-01-17 14:29:18 PST

The differences of the code:
https://godbolt.org/z/wjx3Wy