diff options
author | Alex Shi <alex.shi@linaro.org> | 2014-07-29 13:10:31 +0800 |
---|---|---|
committer | Alex Shi <alex.shi@linaro.org> | 2014-07-29 13:10:31 +0800 |
commit | a21b99aadbb2cc3504c767a6cfd9cb5a0c5b65ed (patch) | |
tree | f7655133751311829ce00fcaa05905be01a0073e /kernel/trace | |
parent | 6a87ef22a8b54095478561f9f2664c40c5c76d98 (diff) | |
parent | 2517325cd75273dc472cf7fa17617df945cf423d (diff) |
Merge branch 'linux-linaro-lsk-v3.14' into linux-linaro-lsk-v3.14-android
Diffstat (limited to 'kernel/trace')
-rw-r--r-- | kernel/trace/ftrace.c | 4 | ||||
-rw-r--r-- | kernel/trace/ring_buffer.c | 4 | ||||
-rw-r--r-- | kernel/trace/trace.c | 18 | ||||
-rw-r--r-- | kernel/trace/trace_events.c | 1 |
4 files changed, 19 insertions, 8 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 868633e61b43..e3be87edde33 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -331,12 +331,12 @@ static void update_ftrace_function(void) func = ftrace_ops_list_func; } + update_function_graph_func(); + /* If there's no change, then do nothing more here */ if (ftrace_trace_function == func) return; - update_function_graph_func(); - /* * If we are using the list function, it doesn't care * about the function_trace_ops. diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 04202d9aa514..0954450df7dc 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -616,10 +616,6 @@ int ring_buffer_poll_wait(struct ring_buffer *buffer, int cpu, struct ring_buffer_per_cpu *cpu_buffer; struct rb_irq_work *work; - if ((cpu == RING_BUFFER_ALL_CPUS && !ring_buffer_empty(buffer)) || - (cpu != RING_BUFFER_ALL_CPUS && !ring_buffer_empty_cpu(buffer, cpu))) - return POLLIN | POLLRDNORM; - if (cpu == RING_BUFFER_ALL_CPUS) work = &buffer->irq_work; else { diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index fc409db9f924..c59f5a1aebc3 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -454,6 +454,12 @@ int __trace_puts(unsigned long ip, const char *str, int size) struct print_entry *entry; unsigned long irq_flags; int alloc; + int pc; + + if (!(trace_flags & TRACE_ITER_PRINTK)) + return 0; + + pc = preempt_count(); if (unlikely(tracing_selftest_running || tracing_disabled)) return 0; @@ -463,7 +469,7 @@ int __trace_puts(unsigned long ip, const char *str, int size) local_save_flags(irq_flags); buffer = global_trace.trace_buffer.buffer; event = trace_buffer_lock_reserve(buffer, TRACE_PRINT, alloc, - irq_flags, preempt_count()); + irq_flags, pc); if (!event) return 0; @@ -480,6 +486,7 @@ int __trace_puts(unsigned long ip, const char *str, int size) entry->buf[size] = '\0'; __buffer_unlock_commit(buffer, event); + ftrace_trace_stack(buffer, irq_flags, 4, pc); return size; } @@ -497,6 +504,12 @@ int __trace_bputs(unsigned long ip, const char *str) struct bputs_entry *entry; unsigned long irq_flags; int size = sizeof(struct bputs_entry); + int pc; + + if (!(trace_flags & TRACE_ITER_PRINTK)) + return 0; + + pc = preempt_count(); if (unlikely(tracing_selftest_running || tracing_disabled)) return 0; @@ -504,7 +517,7 @@ int __trace_bputs(unsigned long ip, const char *str) local_save_flags(irq_flags); buffer = global_trace.trace_buffer.buffer; event = trace_buffer_lock_reserve(buffer, TRACE_BPUTS, size, - irq_flags, preempt_count()); + irq_flags, pc); if (!event) return 0; @@ -513,6 +526,7 @@ int __trace_bputs(unsigned long ip, const char *str) entry->str = str; __buffer_unlock_commit(buffer, event); + ftrace_trace_stack(buffer, irq_flags, 4, pc); return 1; } diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 7b16d40bd64d..e4c4efc4ba0d 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -439,6 +439,7 @@ static void remove_event_file_dir(struct ftrace_event_file *file) list_del(&file->list); remove_subsystem(file->system); + free_event_filter(file->filter); kmem_cache_free(file_cachep, file); } |