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authorChuck Ebbert <76306.1226@compuserve.com>2006-12-07 02:14:07 +0100
committerAndi Kleen <andi@basil.nowhere.org>2006-12-07 02:14:07 +0100
commit8c89812684de3b47066d800031dfd7098abbdc74 (patch)
tree5ecd29411a637313a54876f71b10fc7467d07ec5
parent516d2836434d279fef164bb1b964e83425d312d2 (diff)
[PATCH] i386: remove IOPL check on task switch
IOPL is implicitly saved and restored on task switch, so explicit check is no longer needed. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andi Kleen <ak@suse.de>
-rw-r--r--arch/i386/kernel/process.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 8f42659ef9d..99308510a17 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -675,12 +675,6 @@ struct task_struct fastcall * __switch_to(struct task_struct *prev_p, struct tas
write_pda(pcurrent, next_p);
/*
- * Restore IOPL if needed.
- */
- if (unlikely(prev->iopl != next->iopl))
- set_iopl_mask(next->iopl);
-
- /*
* Now maybe handle debug registers and/or IO bitmaps
*/
if (unlikely((task_thread_info(next_p)->flags & _TIF_WORK_CTXSW)