[tip:perf/core] perf: Deconstify struct pmu

From: tip-bot for Peter Zijlstra
Date: Thu Sep 09 2010 - 15:48:32 EST

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Commit-ID: 51b0fe39549a04858001922919ab355dee9bdfcf
Gitweb: http://git.kernel.org/tip/51b0fe39549a04858001922919ab355dee9bdfcf
Author: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
AuthorDate: Fri, 11 Jun 2010 13:35:57 +0200
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Thu, 9 Sep 2010 20:46:27 +0200

perf: Deconstify struct pmu

sed -ie 's/const struct pmu\>/struct pmu/g' `git grep -l "const struct pmu\>"`

Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: paulus <paulus@xxxxxxxxx>
Cc: stephane eranian <eranian@xxxxxxxxxxxxxx>
Cc: Robert Richter <robert.richter@xxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: Paul Mundt <lethal@xxxxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxx>
Cc: Lin Ming <ming.m.lin@xxxxxxxxx>
Cc: Yanmin <yanmin_zhang@xxxxxxxxxxxxxxx>
Cc: Deng-Cheng Zhu <dengcheng.zhu@xxxxxxxxx>
Cc: David Miller <davem@xxxxxxxxxxxxx>
Cc: Michael Cree <mcree@xxxxxxxxxxxx>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
arch/alpha/kernel/perf_event.c | 4 ++--
arch/arm/kernel/perf_event.c | 2 +-
arch/powerpc/kernel/perf_event.c | 8 ++++----
arch/powerpc/kernel/perf_event_fsl_emb.c | 2 +-
arch/sh/kernel/perf_event.c | 4 ++--
arch/sparc/kernel/perf_event.c | 10 +++++-----
arch/x86/kernel/cpu/perf_event.c | 14 +++++++-------
include/linux/perf_event.h | 10 +++++-----
kernel/perf_event.c | 26 +++++++++++++-------------
9 files changed, 40 insertions(+), 40 deletions(-)

diff --git a/arch/alpha/kernel/perf_event.c b/arch/alpha/kernel/perf_event.c
index 51c39fa..56fa415 100644
--- a/arch/alpha/kernel/perf_event.c
+++ b/arch/alpha/kernel/perf_event.c
@@ -642,7 +642,7 @@ static int __hw_perf_event_init(struct perf_event *event)
return 0;
}

-static const struct pmu pmu = {
+static struct pmu pmu = {
.enable = alpha_pmu_enable,
.disable = alpha_pmu_disable,
.read = alpha_pmu_read,
@@ -653,7 +653,7 @@ static const struct pmu pmu = {
/*
* Main entry point to initialise a HW performance event.
*/
-const struct pmu *hw_perf_event_init(struct perf_event *event)
+struct pmu *hw_perf_event_init(struct perf_event *event)
{
int err;

diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 64ca8c3..0671e92 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -491,7 +491,7 @@ __hw_perf_event_init(struct perf_event *event)
return err;
}

-const struct pmu *
+struct pmu *
hw_perf_event_init(struct perf_event *event)
{
int err = 0;
diff --git a/arch/powerpc/kernel/perf_event.c b/arch/powerpc/kernel/perf_event.c
index d301a30..5f78681 100644
--- a/arch/powerpc/kernel/perf_event.c
+++ b/arch/powerpc/kernel/perf_event.c
@@ -857,7 +857,7 @@ static void power_pmu_unthrottle(struct perf_event *event)
* Set the flag to make pmu::enable() not perform the
* schedulability test, it will be performed at commit time
*/
-void power_pmu_start_txn(const struct pmu *pmu)
+void power_pmu_start_txn(struct pmu *pmu)
{
struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events);

@@ -870,7 +870,7 @@ void power_pmu_start_txn(const struct pmu *pmu)
* Clear the flag and pmu::enable() will perform the
* schedulability test.
*/
-void power_pmu_cancel_txn(const struct pmu *pmu)
+void power_pmu_cancel_txn(struct pmu *pmu)
{
struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events);

@@ -882,7 +882,7 @@ void power_pmu_cancel_txn(const struct pmu *pmu)
* Perform the group schedulability test as a whole
* Return 0 if success
*/
-int power_pmu_commit_txn(const struct pmu *pmu)
+int power_pmu_commit_txn(struct pmu *pmu)
{
struct cpu_hw_events *cpuhw;
long i, n;
@@ -1014,7 +1014,7 @@ static int hw_perf_cache_event(u64 config, u64 *eventp)
return 0;
}

-const struct pmu *hw_perf_event_init(struct perf_event *event)
+struct pmu *hw_perf_event_init(struct perf_event *event)
{
u64 ev;
unsigned long flags;
diff --git a/arch/powerpc/kernel/perf_event_fsl_emb.c b/arch/powerpc/kernel/perf_event_fsl_emb.c
index 1ba4547..d7619b5 100644
--- a/arch/powerpc/kernel/perf_event_fsl_emb.c
+++ b/arch/powerpc/kernel/perf_event_fsl_emb.c
@@ -428,7 +428,7 @@ static int hw_perf_cache_event(u64 config, u64 *eventp)
return 0;
}

-const struct pmu *hw_perf_event_init(struct perf_event *event)
+struct pmu *hw_perf_event_init(struct perf_event *event)
{
u64 ev;
struct perf_event *events[MAX_HWEVENTS];
diff --git a/arch/sh/kernel/perf_event.c b/arch/sh/kernel/perf_event.c
index 7a3dc35..395572c 100644
--- a/arch/sh/kernel/perf_event.c
+++ b/arch/sh/kernel/perf_event.c
@@ -257,13 +257,13 @@ static void sh_pmu_read(struct perf_event *event)
sh_perf_event_update(event, &event->hw, event->hw.idx);
}

-static const struct pmu pmu = {
+static struct pmu pmu = {
.enable = sh_pmu_enable,
.disable = sh_pmu_disable,
.read = sh_pmu_read,
};

-const struct pmu *hw_perf_event_init(struct perf_event *event)
+struct pmu *hw_perf_event_init(struct perf_event *event)
{
int err = __hw_perf_event_init(event);
if (unlikely(err)) {
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 4bc4029..481b894 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -1099,7 +1099,7 @@ static int __hw_perf_event_init(struct perf_event *event)
* Set the flag to make pmu::enable() not perform the
* schedulability test, it will be performed at commit time
*/
-static void sparc_pmu_start_txn(const struct pmu *pmu)
+static void sparc_pmu_start_txn(struct pmu *pmu)
{
struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events);

@@ -1111,7 +1111,7 @@ static void sparc_pmu_start_txn(const struct pmu *pmu)
* Clear the flag and pmu::enable() will perform the
* schedulability test.
*/
-static void sparc_pmu_cancel_txn(const struct pmu *pmu)
+static void sparc_pmu_cancel_txn(struct pmu *pmu)
{
struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events);

@@ -1123,7 +1123,7 @@ static void sparc_pmu_cancel_txn(const struct pmu *pmu)
* Perform the group schedulability test as a whole
* Return 0 if success
*/
-static int sparc_pmu_commit_txn(const struct pmu *pmu)
+static int sparc_pmu_commit_txn(struct pmu *pmu)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
int n;
@@ -1142,7 +1142,7 @@ static int sparc_pmu_commit_txn(const struct pmu *pmu)
return 0;
}

-static const struct pmu pmu = {
+static struct pmu pmu = {
.enable = sparc_pmu_enable,
.disable = sparc_pmu_disable,
.read = sparc_pmu_read,
@@ -1152,7 +1152,7 @@ static const struct pmu pmu = {
.commit_txn = sparc_pmu_commit_txn,
};

-const struct pmu *hw_perf_event_init(struct perf_event *event)
+struct pmu *hw_perf_event_init(struct perf_event *event)
{
int err = __hw_perf_event_init(event);

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index de6569c..fdd97f2 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -618,7 +618,7 @@ static void x86_pmu_enable_all(int added)
}
}

-static const struct pmu pmu;
+static struct pmu pmu;

static inline int is_x86_event(struct perf_event *event)
{
@@ -1427,7 +1427,7 @@ static inline void x86_pmu_read(struct perf_event *event)
* Set the flag to make pmu::enable() not perform the
* schedulability test, it will be performed at commit time
*/
-static void x86_pmu_start_txn(const struct pmu *pmu)
+static void x86_pmu_start_txn(struct pmu *pmu)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);

@@ -1440,7 +1440,7 @@ static void x86_pmu_start_txn(const struct pmu *pmu)
* Clear the flag and pmu::enable() will perform the
* schedulability test.
*/
-static void x86_pmu_cancel_txn(const struct pmu *pmu)
+static void x86_pmu_cancel_txn(struct pmu *pmu)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);

@@ -1457,7 +1457,7 @@ static void x86_pmu_cancel_txn(const struct pmu *pmu)
* Perform the group schedulability test as a whole
* Return 0 if success
*/
-static int x86_pmu_commit_txn(const struct pmu *pmu)
+static int x86_pmu_commit_txn(struct pmu *pmu)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
int assign[X86_PMC_IDX_MAX];
@@ -1483,7 +1483,7 @@ static int x86_pmu_commit_txn(const struct pmu *pmu)
return 0;
}

-static const struct pmu pmu = {
+static struct pmu pmu = {
.enable = x86_pmu_enable,
.disable = x86_pmu_disable,
.start = x86_pmu_start,
@@ -1569,9 +1569,9 @@ out:
return ret;
}

-const struct pmu *hw_perf_event_init(struct perf_event *event)
+struct pmu *hw_perf_event_init(struct perf_event *event)
{
- const struct pmu *tmp;
+ struct pmu *tmp;
int err;

err = __hw_perf_event_init(event);
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 000610c..09d048b 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -578,19 +578,19 @@ struct pmu {
* Start the transaction, after this ->enable() doesn't need
* to do schedulability tests.
*/
- void (*start_txn) (const struct pmu *pmu);
+ void (*start_txn) (struct pmu *pmu);
/*
* If ->start_txn() disabled the ->enable() schedulability test
* then ->commit_txn() is required to perform one. On success
* the transaction is closed. On error the transaction is kept
* open until ->cancel_txn() is called.
*/
- int (*commit_txn) (const struct pmu *pmu);
+ int (*commit_txn) (struct pmu *pmu);
/*
* Will cancel the transaction, assumes ->disable() is called for
* each successfull ->enable() during the transaction.
*/
- void (*cancel_txn) (const struct pmu *pmu);
+ void (*cancel_txn) (struct pmu *pmu);
};

/**
@@ -669,7 +669,7 @@ struct perf_event {
int nr_siblings;
int group_flags;
struct perf_event *group_leader;
- const struct pmu *pmu;
+ struct pmu *pmu;

enum perf_event_active_state state;
unsigned int attach_state;
@@ -849,7 +849,7 @@ struct perf_output_handle {
*/
extern int perf_max_events;

-extern const struct pmu *hw_perf_event_init(struct perf_event *event);
+extern struct pmu *hw_perf_event_init(struct perf_event *event);

extern void perf_event_task_sched_in(struct task_struct *task);
extern void perf_event_task_sched_out(struct task_struct *task, struct task_struct *next);
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 2d74f31..fb46fd1 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -75,7 +75,7 @@ static DEFINE_SPINLOCK(perf_resource_lock);
/*
* Architecture provided APIs - weak aliases:
*/
-extern __weak const struct pmu *hw_perf_event_init(struct perf_event *event)
+extern __weak struct pmu *hw_perf_event_init(struct perf_event *event)
{
return NULL;
}
@@ -691,7 +691,7 @@ group_sched_in(struct perf_event *group_event,
struct perf_event_context *ctx)
{
struct perf_event *event, *partial_group = NULL;
- const struct pmu *pmu = group_event->pmu;
+ struct pmu *pmu = group_event->pmu;
bool txn = false;

if (group_event->state == PERF_EVENT_STATE_OFF)
@@ -4501,7 +4501,7 @@ static int perf_swevent_int(struct perf_event *event)
return 0;
}

-static const struct pmu perf_ops_generic = {
+static struct pmu perf_ops_generic = {
.enable = perf_swevent_enable,
.disable = perf_swevent_disable,
.start = perf_swevent_int,
@@ -4614,7 +4614,7 @@ static void cpu_clock_perf_event_read(struct perf_event *event)
cpu_clock_perf_event_update(event);
}

-static const struct pmu perf_ops_cpu_clock = {
+static struct pmu perf_ops_cpu_clock = {
.enable = cpu_clock_perf_event_enable,
.disable = cpu_clock_perf_event_disable,
.read = cpu_clock_perf_event_read,
@@ -4671,7 +4671,7 @@ static void task_clock_perf_event_read(struct perf_event *event)
task_clock_perf_event_update(event, time);
}

-static const struct pmu perf_ops_task_clock = {
+static struct pmu perf_ops_task_clock = {
.enable = task_clock_perf_event_enable,
.disable = task_clock_perf_event_disable,
.read = task_clock_perf_event_read,
@@ -4785,7 +4785,7 @@ static int swevent_hlist_get(struct perf_event *event)

#ifdef CONFIG_EVENT_TRACING

-static const struct pmu perf_ops_tracepoint = {
+static struct pmu perf_ops_tracepoint = {
.enable = perf_trace_enable,
.disable = perf_trace_disable,
.start = perf_swevent_int,
@@ -4849,7 +4849,7 @@ static void tp_perf_event_destroy(struct perf_event *event)
perf_trace_destroy(event);
}

-static const struct pmu *tp_perf_event_init(struct perf_event *event)
+static struct pmu *tp_perf_event_init(struct perf_event *event)
{
int err;

@@ -4896,7 +4896,7 @@ static void perf_event_free_filter(struct perf_event *event)

#else

-static const struct pmu *tp_perf_event_init(struct perf_event *event)
+static struct pmu *tp_perf_event_init(struct perf_event *event)
{
return NULL;
}
@@ -4918,7 +4918,7 @@ static void bp_perf_event_destroy(struct perf_event *event)
release_bp_slot(event);
}

-static const struct pmu *bp_perf_event_init(struct perf_event *bp)
+static struct pmu *bp_perf_event_init(struct perf_event *bp)
{
int err;

@@ -4942,7 +4942,7 @@ void perf_bp_event(struct perf_event *bp, void *data)
perf_swevent_add(bp, 1, 1, &sample, regs);
}
#else
-static const struct pmu *bp_perf_event_init(struct perf_event *bp)
+static struct pmu *bp_perf_event_init(struct perf_event *bp)
{
return NULL;
}
@@ -4964,9 +4964,9 @@ static void sw_perf_event_destroy(struct perf_event *event)
swevent_hlist_put(event);
}

-static const struct pmu *sw_perf_event_init(struct perf_event *event)
+static struct pmu *sw_perf_event_init(struct perf_event *event)
{
- const struct pmu *pmu = NULL;
+ struct pmu *pmu = NULL;
u64 event_id = event->attr.config;

/*
@@ -5028,7 +5028,7 @@ perf_event_alloc(struct perf_event_attr *attr,
perf_overflow_handler_t overflow_handler,
gfp_t gfpflags)
{
- const struct pmu *pmu;
+ struct pmu *pmu;
struct perf_event *event;
struct hw_perf_event *hwc;
long err;
--
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