X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fi386%2Fkernel%2Fvsyscall-sysenter.S;h=1a36d26e15eb0c6d370832ee166dd0fba3700f59;hb=c8cbee61c9d53ee28473ad33bbb54f6a88f5e3af;hp=76b728159403376456b118b7615ae5ef5a5ae3fb;hpb=b05005772f34497eb2b7415a651fe785cbe70e16;p=linux-2.6-omap-h63xx.git

diff --git a/arch/i386/kernel/vsyscall-sysenter.S b/arch/i386/kernel/vsyscall-sysenter.S
index 76b72815940..1a36d26e15e 100644
--- a/arch/i386/kernel/vsyscall-sysenter.S
+++ b/arch/i386/kernel/vsyscall-sysenter.S
@@ -21,6 +21,9 @@
  * instruction clobbers %esp, the user's %esp won't even survive entry
  * into the kernel. We store %esp in %ebp. Code in entry.S must fetch
  * arg6 from the stack.
+ *
+ * You can not use this vsyscall for the clone() syscall because the
+ * three dwords on the parent stack do not get copied to the child.
  */
 	.text
 	.globl __kernel_vsyscall
@@ -39,10 +42,10 @@ __kernel_vsyscall:
 	/* 7: align return point with nop's to make disassembly easier */
 	.space 7,0x90
 
-	/* 14: System call restart point is here! (SYSENTER_RETURN - 2) */
+	/* 14: System call restart point is here! (SYSENTER_RETURN-2) */
 	jmp .Lenter_kernel
 	/* 16: System call normal return point is here! */
-	.globl SYSENTER_RETURN	/* Symbol used by entry.S.  */
+	.globl SYSENTER_RETURN	/* Symbol used by sysenter.c  */
 SYSENTER_RETURN:
 	pop %ebp
 .Lpop_ebp: