diff options
author | Chuck Ebbert <76306.1226@compuserve.com> | 2006-09-26 04:52:32 -0400 |
---|---|---|
committer | Andi Kleen <andi@basil.nowhere.org> | 2006-09-26 04:52:32 -0400 |
commit | d4d35854a1cf7fb170c8e133a5e40a9d19e7fc17 (patch) | |
tree | bf115d920f235178344dbf545facb9daa769f9e1 /arch/x86_64/kernel | |
parent | 145106e81090fcdfb57b7f2e90b98c6445b6f33d (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')
-rw-r--r-- | arch/x86_64/kernel/ptrace.c | 4 |
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 |