AcoSail/kernel_optimize_test
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[PATCH] remove lock prefix from is_at_popf() tests

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The lock prefix will cause an exception when used with the
popf instruction, so no need to continue searching after it's
found.

Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Chuck Ebbert 2006-09-26 10:52:32 +02:00 committed by Andi Kleen
parent 145106e810
commit d4d35854a1
1 changed files with 2 additions and 2 deletions
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arch/x86_64/kernel/ptrace.c
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@ -138,7 +138,7 @@ static int is_at_popf(struct task_struct *child, struct pt_regs *regs)
case 0x26: case 0x2e:
case 0x36: case 0x3e:
case 0x64: case 0x65:
case 0xf0: case 0xf2: case 0xf3:
case 0xf2: case 0xf3:
continue;
case 0x40 ... 0x4f:
@ -148,7 +148,7 @@ static int is_at_popf(struct task_struct *child, struct pt_regs *regs)
/* 64-bit mode: REX prefix */
continue;
/* CHECKME: f0, f2, f3 */
/* CHECKME: f2, f3 */
/*
* pushf: NOTE! We should probably not let