David Howells e31c243f98 FRV: Add support for emulation of userspace atomic ops [try #2] ...

Use traps 120-126 to emulate atomic cmpxchg32, xchg32, and XOR-, OR-, AND-, SUB-
and ADD-to-memory operations for userspace.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2008-04-10 13:41:29 -07:00

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