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[XenPPC] [linux-ppc-2.6] [XEN][POWERPC] better comment

from [Xen patchbot-linux-ppc-2 . 6]

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Subject:	[XenPPC] [linux-ppc-2.6] [XEN][POWERPC] better comment
From:	Xen patchbot-linux-ppc-2.6 <patchbot-linux-ppc-2.6@xxxxxxxxxxxxxxxxxxx>
Date:	Mon, 28 Aug 2006 21:02:24 +0000
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# HG changeset patch
# User Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
# Node ID d7c010b63893b231e44f66ad658fa544cfae821f
# Parent  899b84c2c9799eeb14d34eaaf60196f90573b28a
[XEN][POWERPC] better comment

Signed-off-by: Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
---
 include/asm-powerpc/xen/asm/synch_bitops.h |    3 +++
 1 files changed, 3 insertions(+)

diff -r 899b84c2c979 -r d7c010b63893 include/asm-powerpc/xen/asm/synch_bitops.h
--- a/include/asm-powerpc/xen/asm/synch_bitops.h        Wed Aug 23 13:19:37 
2006 -0500
+++ b/include/asm-powerpc/xen/asm/synch_bitops.h        Mon Aug 28 14:51:29 
2006 -0400
@@ -28,6 +28,9 @@ __synch_cmpxchg_u16(volatile unsigned sh
                }s;
        } xold, xnew;
 
+       /* we could start the reservation here and copy the u32
+        * assembler, but I don't think it will gain us a whole
+        * lot. */
        xold.word = *xp;
        xnew.word = xold.word;
        idx = ((ulong)p >> 1) & 0x1;

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