[Xen-devel] [PATCH] %fs/%gs cleanup in mmu_context.h

[Chris Wright <chrisw@xxxxxxxx>]

Small change to remove difference between Xen and mainline deactivate_mm.
While there, cleanup prepare_arch_switch as well.  This generates
identical code.

Signed-off-by: Chris Wright <chrisw@xxxxxxxx>
---

diff -r ba46bd7f5cdf linux-2.6-xen-sparse/include/asm-xen/asm-i386/mmu_context.h
--- a/linux-2.6-xen-sparse/include/asm-xen/asm-i386/mmu_context.h       Fri Aug 
12 15:59:34 2005
+++ b/linux-2.6-xen-sparse/include/asm-xen/asm-i386/mmu_context.h       Fri Aug 
12 15:59:38 2005
@@ -34,10 +34,10 @@
         * are always kernel segments while inside the kernel. Must
         * happen before reload of cr3/ldt (i.e., not in __switch_to).
         */
-       __asm__ __volatile__ ( "mov %%fs,%0 ; mov %%gs,%1"
-               : "=m" (*(int *)&current->thread.fs),
-                 "=m" (*(int *)&current->thread.gs));
-       __asm__ __volatile__ ( "mov %0,%%fs ; mov %0,%%gs"
+       asm volatile ( "movl %%fs,%0 ; movl %%gs,%1"
+               : "=m" (current->thread.fs),
+                 "=m" (current->thread.gs));
+       asm volatile ( "movl %0,%%fs ; movl %0,%%gs"
                : : "r" (0) );
 }
 
@@ -100,7 +100,7 @@
 }
 
 #define deactivate_mm(tsk, mm) \
-       asm("mov %0,%%fs ; mov %0,%%gs": :"r" (0))
+       asm("movl %0,%%fs ; movl %0,%%gs": :"r" (0))
 
 #define activate_mm(prev, next) \
        switch_mm((prev),(next),NULL)

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