---

yaml --- r: 25343 b: refs/heads/master c: 97c2803 h: refs/heads/master i: 25341: d3cbd5a 25339: b381421 25335: 0110315 25327: 03b4815 25311: 8a1bbad 25279: dcc88a5 25215: 00b7f90 25087: 51d08bd v: v3
git-mirror · Apr 9, 2006 · 67c423f · 67c423f
1 parent 01fc64a
commit 67c423f
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Showing 2 changed files with 9 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e48c4729d23a026f3711d5e36add5cce894b4913
+refs/heads/master: 97c2803c9c694cafbd9f5e43a25903e0abf25188
diff --git a/trunk/arch/x86_64/kernel/process.c b/trunk/arch/x86_64/kernel/process.c
@@ -781,10 +781,16 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
 	}
 	case ARCH_GET_GS: { 
 		unsigned long base;
+		unsigned gsindex;
 		if (task->thread.gsindex == GS_TLS_SEL)
 			base = read_32bit_tls(task, GS_TLS);
-		else if (doit)
-			rdmsrl(MSR_KERNEL_GS_BASE, base);
+		else if (doit) {
+ 			asm("movl %%gs,%0" : "=r" (gsindex));
+			if (gsindex)
+				rdmsrl(MSR_KERNEL_GS_BASE, base);
+			else
+				base = task->thread.gs;
+		}
 		else
 			base = task->thread.gs;
 		ret = put_user(base, (unsigned long __user *)addr);