lguest: suppress interrupts for single insn, not range.

The last patch reduced our interrupt-suppression region to one address,
so simplify the code somewhat.

Also, remove the obsolete undefined instruction ranges and the comment
which refers to lguest_guest.S instead of head_32.S.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/lguest.h b/include/linux/lguest.h
index 9962c6bb1311..6db19f35f7c5 100644
--- a/include/linux/lguest.h
+++ b/include/linux/lguest.h
@@ -61,8 +61,8 @@ struct lguest_data {
         u32 tsc_khz;
 
 /* Fields initialized by the Guest at boot: */
-        /* Instruction range to suppress interrupts even if enabled */
-        unsigned long noirq_start, noirq_end;
+        /* Instruction to suppress interrupts even if enabled */
+        unsigned long noirq_iret;
         /* Address above which page tables are all identical. */
         unsigned long kernel_address;
         /* The vector to try to use for system calls (0x40 or 0x80). */