[PATCH] save 4 bytes in "thread_struct" by changing fs/gs to "unsigned short"

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Hi HJLu, Linus, Arjan,

Now that all users of fs and gs fields of "thread_struct" have been switched
to use "mov" instead of "movl" (newer binutils requirement), why not save
4 bytes switching those fields to 16-bit data types. 

No big deal, but as we say around here, "grain by grain the chicken gets fat".  

--- a/include/asm-i386/processor.h.orig	2005-06-05 20:11:00.000000000 -0300
+++ b/include/asm-i386/processor.h	2005-06-05 20:11:44.000000000 -0300
@@ -439,8 +439,8 @@ struct thread_struct {
 	unsigned long	sysenter_cs;
 	unsigned long	eip;
 	unsigned long	esp;
-	unsigned long	fs;
-	unsigned long	gs;
+	unsigned short	fs;
+	unsigned short	gs;
 /* Hardware debugging registers */
 	unsigned long	debugreg[8];  /* %%db0-7 debug registers */
 /* fault info */
-
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