From: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org, ralf@linux-mips.org,
ananth@in.ibm.com, anil.s.keshavamurthy@intel.com,
davem@davemloft.net, masami.hiramatsu.pt@hitachi.com
Cc: linux-kernel@vger.kernel.org, hschauhan@nulltrace.org,
David Daney <ddaney@caviumnetworks.com>
Subject: [PATCH] MIPS: KProbes: Use flush_insn_slot() where possible.
Date: Tue, 3 Aug 2010 14:00:45 -0700 [thread overview]
Message-ID: <1280869245-2786-1-git-send-email-ddaney@caviumnetworks.com> (raw)
In-Reply-To: <1280859742-26364-4-git-send-email-ddaney@caviumnetworks.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
---
This is a small cleanup that could either be folded into the original
3/5 or applied in addition to it.
arch/mips/include/asm/kprobes.h | 1 +
arch/mips/kernel/kprobes.c | 11 +++--------
2 files changed, 4 insertions(+), 8 deletions(-)
diff --git a/arch/mips/include/asm/kprobes.h b/arch/mips/include/asm/kprobes.h
index fe58e08..e6ea4d4 100644
--- a/arch/mips/include/asm/kprobes.h
+++ b/arch/mips/include/asm/kprobes.h
@@ -25,6 +25,7 @@
#include <linux/ptrace.h>
#include <linux/types.h>
+#include <asm/cacheflush.h>
#include <asm/kdebug.h>
#include <asm/inst.h>
diff --git a/arch/mips/kernel/kprobes.c b/arch/mips/kernel/kprobes.c
index a74ccd2..ee28683 100644
--- a/arch/mips/kernel/kprobes.c
+++ b/arch/mips/kernel/kprobes.c
@@ -28,7 +28,6 @@
#include <linux/kdebug.h>
#include <linux/slab.h>
-#include <asm/cacheflush.h>
#include <asm/ptrace.h>
#include <asm/break.h>
#include <asm/inst.h>
@@ -151,18 +150,14 @@ out:
void __kprobes arch_arm_kprobe(struct kprobe *p)
{
- *(p->addr) = breakpoint_insn;
- flush_icache_range((unsigned long)p->addr,
- (unsigned long)p->addr +
- (MAX_INSN_SIZE * sizeof(kprobe_opcode_t)));
+ *p->addr = breakpoint_insn;
+ flush_insn_slot(p);
}
void __kprobes arch_disarm_kprobe(struct kprobe *p)
{
*p->addr = p->opcode;
- flush_icache_range((unsigned long)p->addr,
- (unsigned long)p->addr +
- (MAX_INSN_SIZE * sizeof(kprobe_opcode_t)));
+ flush_insn_slot(p);
}
void __kprobes arch_remove_kprobe(struct kprobe *p)
--
1.7.1.1
next prev parent reply other threads:[~2010-08-03 21:00 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-03 18:22 [PATCH 0/5] KProbes support for MIPS David Daney
2010-08-03 18:22 ` [PATCH 1/5] MIPS: Define regs_return_value() David Daney
2010-08-03 20:26 ` Ralf Baechle
2010-08-03 20:53 ` [PATCH] " David Daney
2010-08-04 23:46 ` Ralf Baechle
2010-08-03 18:22 ` [PATCH 2/5] MIPS: Add instrunction format for BREAK and SYSCALL David Daney
2010-08-03 20:54 ` Maciej W. Rozycki
2010-08-03 20:59 ` David Daney
2010-08-04 23:53 ` Ralf Baechle
2010-08-03 18:22 ` [PATCH 3/5] MIPS: Add KProbe support David Daney
2010-08-03 21:00 ` David Daney [this message]
2010-08-04 23:59 ` [PATCH] MIPS: KProbes: Use flush_insn_slot() where possible Ralf Baechle
2010-08-04 23:59 ` [PATCH 3/5] MIPS: Add KProbe support Ralf Baechle
2010-08-03 18:22 ` [PATCH 4/5] samples: kprobe_example: Make it print something on MIPS David Daney
2010-08-05 0:04 ` Ralf Baechle
2010-08-03 18:22 ` [PATCH 5/5] documentation: Mention that KProbes is supported " David Daney
2010-08-05 0:07 ` Ralf Baechle
2010-08-04 4:43 ` [PATCH 0/5] KProbes support for MIPS Ananth N Mavinakayanahalli
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