[PATCH] i386: i386 separate hardware-defined TSS from Linux additions

On Thu, 2007-03-29 at 13:16 +0200, Andi Kleen wrote:
> Please clean it up properly with two structs.

Not sure about this, now I've done it.  Running it here.

If you like it, I can do x86-64 as well.

==
lguest defines its own TSS struct because the "struct tss_struct"
contains linux-specific additions.  Andi asked me to split the struct
in processor.h.

Unfortunately it makes usage a little awkward.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>

1 files changed, 4 insertions, 4 deletions

diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 7e8e129b3d7d..5fb9524c6f4b 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -375,7 +375,7 @@ void exit_thread(void)
                 t->io_bitmap_max = 0;
                 tss->io_bitmap_owner = NULL;
                 tss->io_bitmap_max = 0;
-                tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET;
+                tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET;
                 put_cpu();
         }
 }
@@ -554,7 +554,7 @@ static noinline void __switch_to_xtra(struct task_struct *next_p,
                  * Disable the bitmap via an invalid offset. We still cache
                  * the previous bitmap owner and the IO bitmap contents:
                  */
-                tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET;
+                tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET;
                 return;
         }
 
@@ -564,7 +564,7 @@ static noinline void __switch_to_xtra(struct task_struct *next_p,
                  * matches the next task, we dont have to do anything but
                  * to set a valid offset in the TSS:
                  */
-                tss->io_bitmap_base = IO_BITMAP_OFFSET;
+                tss->x86_tss.io_bitmap_base = IO_BITMAP_OFFSET;
                 return;
         }
         /*
@@ -576,7 +576,7 @@ static noinline void __switch_to_xtra(struct task_struct *next_p,
          * redundant copies when the currently switched task does not
          * perform any I/O during its timeslice.
          */
-        tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY;
+        tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY;
 }
 
 /*