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FRV: Add support for emulation of userspace atomic ops [try #2]
authorDavid Howells <dhowells@redhat.com>
Thu, 10 Apr 2008 15:10:55 +0000 (16:10 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 10 Apr 2008 20:41:29 +0000 (13:41 -0700)
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>

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