[PATCH tip 1/2] ring_buffer: remove unused flags parameter

From: Arnaldo Carvalho de Melo
Date: Thu Feb 05 2009 - 13:14:14 EST

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Impact: API change, cleanup

>From ring_buffer_{lock_reserve,unlock_commit}.

Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Frédéric Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jens Axboe <jens.axboe@xxxxxxxxxx>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
block/blktrace.c | 8 +++---
include/linux/ring_buffer.h | 9 ++----
kernel/trace/kmemtrace.c | 12 +++-----
kernel/trace/ring_buffer.c | 9 +-----
kernel/trace/trace.c | 56 +++++++++++++------------------------
kernel/trace/trace_boot.c | 12 +++-----
kernel/trace/trace_branch.c | 7 ++---
kernel/trace/trace_hw_branches.c | 6 ++--
kernel/trace/trace_mmiotrace.c | 12 +++-----
kernel/trace/trace_power.c | 12 +++-----
10 files changed, 51 insertions(+), 92 deletions(-)

$ codiff /tmp/vmlinux.before /tmp/vmlinux.after
linux-2.6-tip/kernel/trace/trace.c:
trace_vprintk | -14
trace_graph_return | -14
trace_graph_entry | -10
trace_function | -8
__ftrace_trace_stack | -8
ftrace_trace_userstack | -8
tracing_sched_switch_trace | -8
ftrace_trace_special | -12
tracing_sched_wakeup_trace | -8
9 functions changed, 90 bytes removed, diff: -90

linux-2.6-tip/block/blktrace.c:
__blk_add_trace | -1
1 function changed, 1 bytes removed, diff: -1

/tmp/vmlinux.after:
10 functions changed, 91 bytes removed, diff: -91

diff --git a/block/blktrace.c b/block/blktrace.c
index d9d7146..8e52f24 100644
--- a/block/blktrace.c
+++ b/block/blktrace.c
@@ -165,7 +165,7 @@ static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes,
struct task_struct *tsk = current;
struct ring_buffer_event *event = NULL;
struct blk_io_trace *t;
- unsigned long flags;
+ unsigned long flags = 0;
unsigned long *sequence;
pid_t pid;
int cpu, pc = 0;
@@ -191,7 +191,7 @@ static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes,
tracing_record_cmdline(current);

event = ring_buffer_lock_reserve(blk_tr->buffer,
- sizeof(*t) + pdu_len, &flags);
+ sizeof(*t) + pdu_len);
if (!event)
return;

@@ -241,11 +241,11 @@ record_it:
memcpy((void *) t + sizeof(*t), pdu_data, pdu_len);

if (blk_tr) {
- ring_buffer_unlock_commit(blk_tr->buffer, event, flags);
+ ring_buffer_unlock_commit(blk_tr->buffer, event);
if (pid != 0 &&
!(blk_tracer_flags.val & TRACE_BLK_OPT_CLASSIC) &&
(trace_flags & TRACE_ITER_STACKTRACE) != 0)
- __trace_stack(blk_tr, flags, 5, pc);
+ __trace_stack(blk_tr, 0, 5, pc);
trace_wake_up();
return;
}
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index b3b3596..3110d92 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -74,13 +74,10 @@ void ring_buffer_free(struct ring_buffer *buffer);

int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size);

-struct ring_buffer_event *
-ring_buffer_lock_reserve(struct ring_buffer *buffer,
- unsigned long length,
- unsigned long *flags);
+struct ring_buffer_event *ring_buffer_lock_reserve(struct ring_buffer *buffer,
+ unsigned long length);
int ring_buffer_unlock_commit(struct ring_buffer *buffer,
- struct ring_buffer_event *event,
- unsigned long flags);
+ struct ring_buffer_event *event);
int ring_buffer_write(struct ring_buffer *buffer,
unsigned long length, void *data);

diff --git a/kernel/trace/kmemtrace.c b/kernel/trace/kmemtrace.c
index f04c062..256749d 100644
--- a/kernel/trace/kmemtrace.c
+++ b/kernel/trace/kmemtrace.c
@@ -272,13 +272,11 @@ void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id,
struct ring_buffer_event *event;
struct kmemtrace_alloc_entry *entry;
struct trace_array *tr = kmemtrace_array;
- unsigned long irq_flags;

if (!kmem_tracing_enabled)
return;

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
return;
entry = ring_buffer_event_data(event);
@@ -292,7 +290,7 @@ void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id,
entry->gfp_flags = gfp_flags;
entry->node = node;

- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);

trace_wake_up();
}
@@ -305,13 +303,11 @@ void kmemtrace_mark_free(enum kmemtrace_type_id type_id,
struct ring_buffer_event *event;
struct kmemtrace_free_entry *entry;
struct trace_array *tr = kmemtrace_array;
- unsigned long irq_flags;

if (!kmem_tracing_enabled)
return;

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
return;
entry = ring_buffer_event_data(event);
@@ -322,7 +318,7 @@ void kmemtrace_mark_free(enum kmemtrace_type_id type_id,
entry->call_site = call_site;
entry->ptr = ptr;

- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);

trace_wake_up();
}
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index b36d737..aee76b3 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1257,7 +1257,6 @@ static DEFINE_PER_CPU(int, rb_need_resched);
* ring_buffer_lock_reserve - reserve a part of the buffer
* @buffer: the ring buffer to reserve from
* @length: the length of the data to reserve (excluding event header)
- * @flags: a pointer to save the interrupt flags
*
* Returns a reseverd event on the ring buffer to copy directly to.
* The user of this interface will need to get the body to write into
@@ -1270,9 +1269,7 @@ static DEFINE_PER_CPU(int, rb_need_resched);
* If NULL is returned, then nothing has been allocated or locked.
*/
struct ring_buffer_event *
-ring_buffer_lock_reserve(struct ring_buffer *buffer,
- unsigned long length,
- unsigned long *flags)
+ring_buffer_lock_reserve(struct ring_buffer *buffer, unsigned long length)
{
struct ring_buffer_per_cpu *cpu_buffer;
struct ring_buffer_event *event;
@@ -1339,15 +1336,13 @@ static void rb_commit(struct ring_buffer_per_cpu *cpu_buffer,
* ring_buffer_unlock_commit - commit a reserved
* @buffer: The buffer to commit to
* @event: The event pointer to commit.
- * @flags: the interrupt flags received from ring_buffer_lock_reserve.
*
* This commits the data to the ring buffer, and releases any locks held.
*
* Must be paired with ring_buffer_lock_reserve.
*/
int ring_buffer_unlock_commit(struct ring_buffer *buffer,
- struct ring_buffer_event *event,
- unsigned long flags)
+ struct ring_buffer_event *event)
{
struct ring_buffer_per_cpu *cpu_buffer;
int cpu = raw_smp_processor_id();
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 3536ef4..eb453a2 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -783,14 +783,12 @@ trace_function(struct trace_array *tr,
{
struct ring_buffer_event *event;
struct ftrace_entry *entry;
- unsigned long irq_flags;

/* If we are reading the ring buffer, don't trace */
if (unlikely(local_read(&__get_cpu_var(ftrace_cpu_disabled))))
return;

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
return;
entry = ring_buffer_event_data(event);
@@ -798,7 +796,7 @@ trace_function(struct trace_array *tr,
entry->ent.type = TRACE_FN;
entry->ip = ip;
entry->parent_ip = parent_ip;
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);
}

#ifdef CONFIG_FUNCTION_GRAPH_TRACER
@@ -809,20 +807,18 @@ static void __trace_graph_entry(struct trace_array *tr,
{
struct ring_buffer_event *event;
struct ftrace_graph_ent_entry *entry;
- unsigned long irq_flags;

if (unlikely(local_read(&__get_cpu_var(ftrace_cpu_disabled))))
return;

- event = ring_buffer_lock_reserve(global_trace.buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(global_trace.buffer, sizeof(*entry));
if (!event)
return;
entry = ring_buffer_event_data(event);
tracing_generic_entry_update(&entry->ent, flags, pc);
entry->ent.type = TRACE_GRAPH_ENT;
entry->graph_ent = *trace;
- ring_buffer_unlock_commit(global_trace.buffer, event, irq_flags);
+ ring_buffer_unlock_commit(global_trace.buffer, event);
}

static void __trace_graph_return(struct trace_array *tr,
@@ -832,20 +828,18 @@ static void __trace_graph_return(struct trace_array *tr,
{
struct ring_buffer_event *event;
struct ftrace_graph_ret_entry *entry;
- unsigned long irq_flags;

if (unlikely(local_read(&__get_cpu_var(ftrace_cpu_disabled))))
return;

- event = ring_buffer_lock_reserve(global_trace.buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(global_trace.buffer, sizeof(*entry));
if (!event)
return;
entry = ring_buffer_event_data(event);
tracing_generic_entry_update(&entry->ent, flags, pc);
entry->ent.type = TRACE_GRAPH_RET;
entry->ret = *trace;
- ring_buffer_unlock_commit(global_trace.buffer, event, irq_flags);
+ ring_buffer_unlock_commit(global_trace.buffer, event);
}
#endif

@@ -866,10 +860,8 @@ static void __ftrace_trace_stack(struct trace_array *tr,
struct ring_buffer_event *event;
struct stack_entry *entry;
struct stack_trace trace;
- unsigned long irq_flags;

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
return;
entry = ring_buffer_event_data(event);
@@ -884,7 +876,7 @@ static void __ftrace_trace_stack(struct trace_array *tr,
trace.entries = entry->caller;

save_stack_trace(&trace);
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);
#endif
}

@@ -912,13 +904,11 @@ static void ftrace_trace_userstack(struct trace_array *tr,
struct ring_buffer_event *event;
struct userstack_entry *entry;
struct stack_trace trace;
- unsigned long irq_flags;

if (!(trace_flags & TRACE_ITER_USERSTACKTRACE))
return;

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
return;
entry = ring_buffer_event_data(event);
@@ -933,7 +923,7 @@ static void ftrace_trace_userstack(struct trace_array *tr,
trace.entries = entry->caller;

save_stack_trace_user(&trace);
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);
#endif
}

@@ -950,10 +940,8 @@ ftrace_trace_special(void *__tr,
struct ring_buffer_event *event;
struct trace_array *tr = __tr;
struct special_entry *entry;
- unsigned long irq_flags;

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
return;
entry = ring_buffer_event_data(event);
@@ -962,9 +950,9 @@ ftrace_trace_special(void *__tr,
entry->arg1 = arg1;
entry->arg2 = arg2;
entry->arg3 = arg3;
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
- ftrace_trace_stack(tr, irq_flags, 4, pc);
- ftrace_trace_userstack(tr, irq_flags, pc);
+ ring_buffer_unlock_commit(tr->buffer, event);
+ ftrace_trace_stack(tr, 0, 4, pc);
+ ftrace_trace_userstack(tr, 0, pc);

trace_wake_up();
}
@@ -984,10 +972,8 @@ tracing_sched_switch_trace(struct trace_array *tr,
{
struct ring_buffer_event *event;
struct ctx_switch_entry *entry;
- unsigned long irq_flags;

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
return;
entry = ring_buffer_event_data(event);
@@ -1000,7 +986,7 @@ tracing_sched_switch_trace(struct trace_array *tr,
entry->next_prio = next->prio;
entry->next_state = next->state;
entry->next_cpu = task_cpu(next);
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);
ftrace_trace_stack(tr, flags, 5, pc);
ftrace_trace_userstack(tr, flags, pc);
}
@@ -1013,10 +999,8 @@ tracing_sched_wakeup_trace(struct trace_array *tr,
{
struct ring_buffer_event *event;
struct ctx_switch_entry *entry;
- unsigned long irq_flags;

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
return;
entry = ring_buffer_event_data(event);
@@ -1029,7 +1013,7 @@ tracing_sched_wakeup_trace(struct trace_array *tr,
entry->next_prio = wakee->prio;
entry->next_state = wakee->state;
entry->next_cpu = task_cpu(wakee);
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);
ftrace_trace_stack(tr, flags, 6, pc);
ftrace_trace_userstack(tr, flags, pc);

@@ -2841,7 +2825,7 @@ int trace_vprintk(unsigned long ip, int depth, const char *fmt, va_list args)
trace_buf[len] = 0;

size = sizeof(*entry) + len + 1;
- event = ring_buffer_lock_reserve(tr->buffer, size, &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, size);
if (!event)
goto out_unlock;
entry = ring_buffer_event_data(event);
@@ -2852,7 +2836,7 @@ int trace_vprintk(unsigned long ip, int depth, const char *fmt, va_list args)

memcpy(&entry->buf, trace_buf, len);
entry->buf[len] = 0;
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);

out_unlock:
spin_unlock_irqrestore(&trace_buf_lock, irq_flags);
diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c
index 1f07895..4e08deb 100644
--- a/kernel/trace/trace_boot.c
+++ b/kernel/trace/trace_boot.c
@@ -132,7 +132,6 @@ void trace_boot_call(struct boot_trace_call *bt, initcall_t fn)
{
struct ring_buffer_event *event;
struct trace_boot_call *entry;
- unsigned long irq_flags;
struct trace_array *tr = boot_trace;

if (!tr || !pre_initcalls_finished)
@@ -144,15 +143,14 @@ void trace_boot_call(struct boot_trace_call *bt, initcall_t fn)
sprint_symbol(bt->func, (unsigned long)fn);
preempt_disable();

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
goto out;
entry = ring_buffer_event_data(event);
tracing_generic_entry_update(&entry->ent, 0, 0);
entry->ent.type = TRACE_BOOT_CALL;
entry->boot_call = *bt;
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);

trace_wake_up();

@@ -164,7 +162,6 @@ void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn)
{
struct ring_buffer_event *event;
struct trace_boot_ret *entry;
- unsigned long irq_flags;
struct trace_array *tr = boot_trace;

if (!tr || !pre_initcalls_finished)
@@ -173,15 +170,14 @@ void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn)
sprint_symbol(bt->func, (unsigned long)fn);
preempt_disable();

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
goto out;
entry = ring_buffer_event_data(event);
tracing_generic_entry_update(&entry->ent, 0, 0);
entry->ent.type = TRACE_BOOT_RET;
entry->boot_ret = *bt;
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);

trace_wake_up();

diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c
index 027e836..770e52a 100644
--- a/kernel/trace/trace_branch.c
+++ b/kernel/trace/trace_branch.c
@@ -33,7 +33,7 @@ probe_likely_condition(struct ftrace_branch_data *f, int val, int expect)
struct trace_array *tr = branch_tracer;
struct ring_buffer_event *event;
struct trace_branch *entry;
- unsigned long flags, irq_flags;
+ unsigned long flags;
int cpu, pc;
const char *p;

@@ -52,8 +52,7 @@ probe_likely_condition(struct ftrace_branch_data *f, int val, int expect)
if (atomic_inc_return(&tr->data[cpu]->disabled) != 1)
goto out;

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
goto out;

@@ -75,7 +74,7 @@ probe_likely_condition(struct ftrace_branch_data *f, int val, int expect)
entry->line = f->line;
entry->correct = val == expect;

- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);

out:
atomic_dec(&tr->data[cpu]->disabled);
diff --git a/kernel/trace/trace_hw_branches.c b/kernel/trace/trace_hw_branches.c
index fff3545..e720c00 100644
--- a/kernel/trace/trace_hw_branches.c
+++ b/kernel/trace/trace_hw_branches.c
@@ -175,7 +175,7 @@ void trace_hw_branch(u64 from, u64 to)
struct trace_array *tr = hw_branch_trace;
struct ring_buffer_event *event;
struct hw_branch_entry *entry;
- unsigned long irq1, irq2;
+ unsigned long irq1;
int cpu;

if (unlikely(!tr))
@@ -189,7 +189,7 @@ void trace_hw_branch(u64 from, u64 to)
if (atomic_inc_return(&tr->data[cpu]->disabled) != 1)
goto out;

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry), &irq2);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
goto out;
entry = ring_buffer_event_data(event);
@@ -198,7 +198,7 @@ void trace_hw_branch(u64 from, u64 to)
entry->ent.cpu = cpu;
entry->from = from;
entry->to = to;
- ring_buffer_unlock_commit(tr->buffer, event, irq2);
+ ring_buffer_unlock_commit(tr->buffer, event);

out:
atomic_dec(&tr->data[cpu]->disabled);
diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index ec78e24..104ddeb 100644
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -307,10 +307,8 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
{
struct ring_buffer_event *event;
struct trace_mmiotrace_rw *entry;
- unsigned long irq_flags;

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event) {
atomic_inc(&dropped_count);
return;
@@ -319,7 +317,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
tracing_generic_entry_update(&entry->ent, 0, preempt_count());
entry->ent.type = TRACE_MMIO_RW;
entry->rw = *rw;
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);

trace_wake_up();
}
@@ -337,10 +335,8 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
{
struct ring_buffer_event *event;
struct trace_mmiotrace_map *entry;
- unsigned long irq_flags;

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event) {
atomic_inc(&dropped_count);
return;
@@ -349,7 +345,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
tracing_generic_entry_update(&entry->ent, 0, preempt_count());
entry->ent.type = TRACE_MMIO_MAP;
entry->map = *map;
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);

trace_wake_up();
}
diff --git a/kernel/trace/trace_power.c b/kernel/trace/trace_power.c
index faa6ab7..3b1a292 100644
--- a/kernel/trace/trace_power.c
+++ b/kernel/trace/trace_power.c
@@ -115,7 +115,6 @@ void trace_power_end(struct power_trace *it)
struct ring_buffer_event *event;
struct trace_power *entry;
struct trace_array_cpu *data;
- unsigned long irq_flags;
struct trace_array *tr = power_trace;

if (!trace_power_enabled)
@@ -125,15 +124,14 @@ void trace_power_end(struct power_trace *it)
it->end = ktime_get();
data = tr->data[smp_processor_id()];

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
goto out;
entry = ring_buffer_event_data(event);
tracing_generic_entry_update(&entry->ent, 0, 0);
entry->ent.type = TRACE_POWER;
entry->state_data = *it;
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);

trace_wake_up();

@@ -148,7 +146,6 @@ void trace_power_mark(struct power_trace *it, unsigned int type,
struct ring_buffer_event *event;
struct trace_power *entry;
struct trace_array_cpu *data;
- unsigned long irq_flags;
struct trace_array *tr = power_trace;

if (!trace_power_enabled)
@@ -162,15 +159,14 @@ void trace_power_mark(struct power_trace *it, unsigned int type,
it->end = it->stamp;
data = tr->data[smp_processor_id()];

- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
- &irq_flags);
+ event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
if (!event)
goto out;
entry = ring_buffer_event_data(event);
tracing_generic_entry_update(&entry->ent, 0, 0);
entry->ent.type = TRACE_POWER;
entry->state_data = *it;
- ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+ ring_buffer_unlock_commit(tr->buffer, event);

trace_wake_up();

--
1.6.0.6

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