The patch titled
Switch Kprobes inline functions to __kprobes for ppc64
has been removed from the -mm tree. Its filename is
switch-kprobes-inline-functions-to-__kprobes-for-ppc64.patch
This patch was probably dropped from -mm because
it has now been merged into a subsystem tree or
into Linus's tree, or because it was folded into
its parent patch in the -mm tree.
From: Prasanna S Panchamukhi <prasanna@xxxxxxxxxx>
Andrew Morton pointed out that compiler might not inline the functions marked
for inline in kprobes. There by allowing the insertion of probes on these
kprobes routines, which might cause recursion. This patch removes all such
inline and adds them to kprobes section there by disallowing probes on all
such routines. Some of the routines can even still be inlined, since these
routines gets executed after the kprobes had done necessay setup for
reentrancy.
Signed-off-by: Prasanna S Panchamukhi <prasanna@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/powerpc/kernel/kprobes.c | 14 +++++++-------
1 files changed, 7 insertions(+), 7 deletions(-)
diff -puN arch/powerpc/kernel/kprobes.c~switch-kprobes-inline-functions-to-__kprobes-for-ppc64 arch/powerpc/kernel/kprobes.c
--- devel/arch/powerpc/kernel/kprobes.c~switch-kprobes-inline-functions-to-__kprobes-for-ppc64 2006-04-18 22:20:03.000000000 -0700
+++ devel-akpm/arch/powerpc/kernel/kprobes.c 2006-04-18 22:20:03.000000000 -0700
@@ -88,7 +88,7 @@ void __kprobes arch_remove_kprobe(struct
mutex_unlock(&kprobe_mutex);
}
-static inline void prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
+static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
{
kprobe_opcode_t insn = *p->ainsn.insn;
@@ -101,21 +101,21 @@ static inline void prepare_singlestep(st
regs->nip = (unsigned long)p->ainsn.insn;
}
-static inline void save_previous_kprobe(struct kprobe_ctlblk *kcb)
+static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
{
kcb->prev_kprobe.kp = kprobe_running();
kcb->prev_kprobe.status = kcb->kprobe_status;
kcb->prev_kprobe.saved_msr = kcb->kprobe_saved_msr;
}
-static inline void restore_previous_kprobe(struct kprobe_ctlblk *kcb)
+static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
{
__get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp;
kcb->kprobe_status = kcb->prev_kprobe.status;
kcb->kprobe_saved_msr = kcb->prev_kprobe.saved_msr;
}
-static inline void set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
+static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
struct kprobe_ctlblk *kcb)
{
__get_cpu_var(current_kprobe) = p;
@@ -141,7 +141,7 @@ void __kprobes arch_prepare_kretprobe(st
}
}
-static inline int kprobe_handler(struct pt_regs *regs)
+static int __kprobes kprobe_handler(struct pt_regs *regs)
{
struct kprobe *p;
int ret = 0;
@@ -334,7 +334,7 @@ static void __kprobes resume_execution(s
regs->nip = (unsigned long)p->addr + 4;
}
-static inline int post_kprobe_handler(struct pt_regs *regs)
+static int __kprobes post_kprobe_handler(struct pt_regs *regs)
{
struct kprobe *cur = kprobe_running();
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
@@ -370,7 +370,7 @@ out:
return 1;
}
-static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
+static int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
{
struct kprobe *cur = kprobe_running();
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
_
Patches currently in -mm which might be from prasanna@xxxxxxxxxx are
origin.patch
-
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