Chris Wright
2005-Aug-13 00:03 UTC
[Xen-devel] [PATCH] %fs/%gs cleanup in mmu_context.h - take 2
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@osdl.org> --- 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 17:01:51 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" + asm volatile ( "mov %%fs,%0 ; mov %%gs,%1" : "=m" (*(int *)¤t->thread.fs), "=m" (*(int *)¤t->thread.gs)); - __asm__ __volatile__ ( "mov %0,%%fs ; mov %0,%%gs" + asm volatile ( "mov %0,%%fs ; mov %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) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel