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authorChuck Ebbert <76306.1226@compuserve.com>2006-09-26 04:52:32 -0400
committerAndi Kleen <andi@basil.nowhere.org>2006-09-26 04:52:32 -0400
commitd4d35854a1cf7fb170c8e133a5e40a9d19e7fc17 (patch)
treebf115d920f235178344dbf545facb9daa769f9e1 /arch/x86_64/kernel/ptrace.c
parent145106e81090fcdfb57b7f2e90b98c6445b6f33d (diff)
[PATCH] remove lock prefix from is_at_popf() tests
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>
Diffstat (limited to 'arch/x86_64/kernel/ptrace.c')
-rw-r--r--arch/x86_64/kernel/ptrace.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c
index 3a52c7bcfd12..412c6a8bf906 100644
--- a/arch/x86_64/kernel/ptrace.c
+++ b/arch/x86_64/kernel/ptrace.c
@@ -138,7 +138,7 @@ static int is_at_popf(struct task_struct *child, struct pt_regs *regs)
138 case 0x26: case 0x2e: 138 case 0x26: case 0x2e:
139 case 0x36: case 0x3e: 139 case 0x36: case 0x3e:
140 case 0x64: case 0x65: 140 case 0x64: case 0x65:
141 case 0xf0: case 0xf2: case 0xf3: 141 case 0xf2: case 0xf3:
142 continue; 142 continue;
143 143
144 case 0x40 ... 0x4f: 144 case 0x40 ... 0x4f:
@@ -148,7 +148,7 @@ static int is_at_popf(struct task_struct *child, struct pt_regs *regs)
148 /* 64-bit mode: REX prefix */ 148 /* 64-bit mode: REX prefix */
149 continue; 149 continue;
150 150
151 /* CHECKME: f0, f2, f3 */ 151 /* CHECKME: f2, f3 */
152 152
153 /* 153 /*
154 * pushf: NOTE! We should probably not let 154 * pushf: NOTE! We should probably not let