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UML - x86_64 should copy %fs during fork

PATCH New Jeff Dike 1 participant 1 message Feb 6, 2008 User-mode Linux (UML)

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Jeff Dike

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PATCH 4/5 UML - x86_64 should copy %fs during fork

%fs needs to be copied from parent to child during fork.

Tidied up some whitespace while I was here.

Signed-off-by Jeff Dike <[email protected]>
---
 include/asm-um/processor-x86_64.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
include/asm-um/processor-x86_64.h +2 -1
Index: linux-2.6-git/include/asm-um/processor-x86_64.h
===================================================================
@@ -26,7 +26,7 @@ static inline void rep_nop(void)
 #define cpu_relax()   rep_nop()
 
 #define INIT_ARCH_THREAD { .debugregs  		= { [ 0 ... 7 ] = 0 }, \
-                           .debugregs_seq	= 0,			       \
+			   .debugregs_seq	= 0, \
 			   .fs			= 0, \
 			   .faultinfo		= { 0, 0, 0 } }
 

@@ -37,6 +37,7 @@ static inline void arch_flush_thread(str
 static inline void arch_copy_thread(struct arch_thread *from,
                                     struct arch_thread *to)
 {
+	to->fs = from->fs;
 }
 
 #include "asm/arch/user.h"

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