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[SPARC64]: Don't clobber alt-global %g4 on window fixups.
authorDavid S. Miller <davem@davemloft.net>
Wed, 1 Feb 2006 02:35:05 +0000 (18:35 -0800)
committerDavid S. Miller <davem@sunset.davemloft.net>
Mon, 20 Mar 2006 09:11:30 +0000 (01:11 -0800)
If we are returning back to kernel mode, %g4 could be live
(for example, in the case where we window spill in the etrap
code).  So do not change it's value if going back to kernel.

Signed-off-by: David S. Miller <davem@davemloft.net>

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