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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2011-01-05 12:47:21 +0100
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2011-01-05 12:47:24 +0100
commit371db06b017c518da2d69ae278c5978ebcd1041a (patch)
tree02a1974a2e2a16d9625c1616c7004537a13d2245 /arch/s390/kernel
parentb9599798f953084774da926caa8bafd7e244948e (diff)
downloadlinux-linaro-android-371db06b017c518da2d69ae278c5978ebcd1041a.tar.gz
[S390] kprobes: insn slots
The s390 architecture can execute code on kmalloc/vmalloc memory. No need for the __ARCH_WANT_KPROBES_INSN_SLOT detour. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/kprobes.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index f68eaaaa806..61f0b6c3618 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -126,10 +126,6 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
if (is_prohibited_opcode((kprobe_opcode_t *) p->addr))
return -EINVAL;
- /* Use the get_insn_slot() facility for correctness */
- if (!(p->ainsn.insn = get_insn_slot()))
- return -ENOMEM;
-
p->opcode = *p->addr;
memcpy(p->ainsn.insn, p->addr, ((p->opcode >> 14) + 3) & -2);
@@ -173,10 +169,6 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p)
void __kprobes arch_remove_kprobe(struct kprobe *p)
{
- if (p->ainsn.insn) {
- free_insn_slot(p->ainsn.insn, 0);
- p->ainsn.insn = NULL;
- }
}
static void __kprobes enable_singlestep(struct kprobe_ctlblk *kcb,