提交 8c898126 编写于 作者: C Chuck Ebbert 提交者: Andi Kleen

[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: NChuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: NAndi Kleen <ak@suse.de>
上级 516d2836
......@@ -674,12 +674,6 @@ 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
*/
......
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