tree 01601a502007b85d4fc88f79de7a93c257ef9d97
parent b4062b16094038334d9bbadac0397a3fc9e981b0
author Andi Kleen <ak@suse.de> 1159260748 +0200
committer Andi Kleen <andi@basil.nowhere.org> 1159260748 +0200

[PATCH] Clean up read write lock assembly

- Move the slow path fallbacks to their own assembly files
This makes them much easier to read and is needed for the next change.
- Add CFI annotations for unwinding (XXX need review)
- Remove constant case which can never happen with out of line spinlocks
- Use patchable LOCK prefixes
- Don't use lock sections anymore for inline code because they can't
be expressed by the unwinder (this adds one taken jump to the lock
fast path)

Cc: jbeulich@novell.com

Signed-off-by: Andi Kleen <ak@suse.de>