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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-14 12:58:24 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-14 12:58:24 -0500 |
commit | d0316554d3586cbea60592a41391b5def2553d6f (patch) | |
tree | 5e7418f0bacbc68cec5dfd1541e03eb56870aa02 /kernel/trace/trace_hw_branches.c | |
parent | fb0bbb92d42d5bd0ab224605444efdfed06d6934 (diff) | |
parent | 51e99be00ce2713cbb841cedc997cafa6e26c7f4 (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (34 commits)
m68k: rename global variable vmalloc_end to m68k_vmalloc_end
percpu: add missing per_cpu_ptr_to_phys() definition for UP
percpu: Fix kdump failure if booted with percpu_alloc=page
percpu: make misc percpu symbols unique
percpu: make percpu symbols in ia64 unique
percpu: make percpu symbols in powerpc unique
percpu: make percpu symbols in x86 unique
percpu: make percpu symbols in xen unique
percpu: make percpu symbols in cpufreq unique
percpu: make percpu symbols in oprofile unique
percpu: make percpu symbols in tracer unique
percpu: make percpu symbols under kernel/ and mm/ unique
percpu: remove some sparse warnings
percpu: make alloc_percpu() handle array types
vmalloc: fix use of non-existent percpu variable in put_cpu_var()
this_cpu: Use this_cpu_xx in trace_functions_graph.c
this_cpu: Use this_cpu_xx for ftrace
this_cpu: Use this_cpu_xx in nmi handling
this_cpu: Use this_cpu operations in RCU
this_cpu: Use this_cpu ops for VM statistics
...
Fix up trivial (famous last words) global per-cpu naming conflicts in
arch/x86/kvm/svm.c
mm/slab.c
Diffstat (limited to 'kernel/trace/trace_hw_branches.c')
-rw-r--r-- | kernel/trace/trace_hw_branches.c | 51 |
1 files changed, 26 insertions, 25 deletions
diff --git a/kernel/trace/trace_hw_branches.c b/kernel/trace/trace_hw_branches.c index 69543a905cd5..7b97000745f5 100644 --- a/kernel/trace/trace_hw_branches.c +++ b/kernel/trace/trace_hw_branches.c | |||
@@ -20,10 +20,10 @@ | |||
20 | 20 | ||
21 | #define BTS_BUFFER_SIZE (1 << 13) | 21 | #define BTS_BUFFER_SIZE (1 << 13) |
22 | 22 | ||
23 | static DEFINE_PER_CPU(struct bts_tracer *, tracer); | 23 | static DEFINE_PER_CPU(struct bts_tracer *, hwb_tracer); |
24 | static DEFINE_PER_CPU(unsigned char[BTS_BUFFER_SIZE], buffer); | 24 | static DEFINE_PER_CPU(unsigned char[BTS_BUFFER_SIZE], hwb_buffer); |
25 | 25 | ||
26 | #define this_tracer per_cpu(tracer, smp_processor_id()) | 26 | #define this_tracer per_cpu(hwb_tracer, smp_processor_id()) |
27 | 27 | ||
28 | static int trace_hw_branches_enabled __read_mostly; | 28 | static int trace_hw_branches_enabled __read_mostly; |
29 | static int trace_hw_branches_suspended __read_mostly; | 29 | static int trace_hw_branches_suspended __read_mostly; |
@@ -32,12 +32,13 @@ static struct trace_array *hw_branch_trace __read_mostly; | |||
32 | 32 | ||
33 | static void bts_trace_init_cpu(int cpu) | 33 | static void bts_trace_init_cpu(int cpu) |
34 | { | 34 | { |
35 | per_cpu(tracer, cpu) = | 35 | per_cpu(hwb_tracer, cpu) = |
36 | ds_request_bts_cpu(cpu, per_cpu(buffer, cpu), BTS_BUFFER_SIZE, | 36 | ds_request_bts_cpu(cpu, per_cpu(hwb_buffer, cpu), |
37 | NULL, (size_t)-1, BTS_KERNEL); | 37 | BTS_BUFFER_SIZE, NULL, (size_t)-1, |
38 | BTS_KERNEL); | ||
38 | 39 | ||
39 | if (IS_ERR(per_cpu(tracer, cpu))) | 40 | if (IS_ERR(per_cpu(hwb_tracer, cpu))) |
40 | per_cpu(tracer, cpu) = NULL; | 41 | per_cpu(hwb_tracer, cpu) = NULL; |
41 | } | 42 | } |
42 | 43 | ||
43 | static int bts_trace_init(struct trace_array *tr) | 44 | static int bts_trace_init(struct trace_array *tr) |
@@ -51,7 +52,7 @@ static int bts_trace_init(struct trace_array *tr) | |||
51 | for_each_online_cpu(cpu) { | 52 | for_each_online_cpu(cpu) { |
52 | bts_trace_init_cpu(cpu); | 53 | bts_trace_init_cpu(cpu); |
53 | 54 | ||
54 | if (likely(per_cpu(tracer, cpu))) | 55 | if (likely(per_cpu(hwb_tracer, cpu))) |
55 | trace_hw_branches_enabled = 1; | 56 | trace_hw_branches_enabled = 1; |
56 | } | 57 | } |
57 | trace_hw_branches_suspended = 0; | 58 | trace_hw_branches_suspended = 0; |
@@ -67,9 +68,9 @@ static void bts_trace_reset(struct trace_array *tr) | |||
67 | 68 | ||
68 | get_online_cpus(); | 69 | get_online_cpus(); |
69 | for_each_online_cpu(cpu) { | 70 | for_each_online_cpu(cpu) { |
70 | if (likely(per_cpu(tracer, cpu))) { | 71 | if (likely(per_cpu(hwb_tracer, cpu))) { |
71 | ds_release_bts(per_cpu(tracer, cpu)); | 72 | ds_release_bts(per_cpu(hwb_tracer, cpu)); |
72 | per_cpu(tracer, cpu) = NULL; | 73 | per_cpu(hwb_tracer, cpu) = NULL; |
73 | } | 74 | } |
74 | } | 75 | } |
75 | trace_hw_branches_enabled = 0; | 76 | trace_hw_branches_enabled = 0; |
@@ -83,8 +84,8 @@ static void bts_trace_start(struct trace_array *tr) | |||
83 | 84 | ||
84 | get_online_cpus(); | 85 | get_online_cpus(); |
85 | for_each_online_cpu(cpu) | 86 | for_each_online_cpu(cpu) |
86 | if (likely(per_cpu(tracer, cpu))) | 87 | if (likely(per_cpu(hwb_tracer, cpu))) |
87 | ds_resume_bts(per_cpu(tracer, cpu)); | 88 | ds_resume_bts(per_cpu(hwb_tracer, cpu)); |
88 | trace_hw_branches_suspended = 0; | 89 | trace_hw_branches_suspended = 0; |
89 | put_online_cpus(); | 90 | put_online_cpus(); |
90 | } | 91 | } |
@@ -95,8 +96,8 @@ static void bts_trace_stop(struct trace_array *tr) | |||
95 | 96 | ||
96 | get_online_cpus(); | 97 | get_online_cpus(); |
97 | for_each_online_cpu(cpu) | 98 | for_each_online_cpu(cpu) |
98 | if (likely(per_cpu(tracer, cpu))) | 99 | if (likely(per_cpu(hwb_tracer, cpu))) |
99 | ds_suspend_bts(per_cpu(tracer, cpu)); | 100 | ds_suspend_bts(per_cpu(hwb_tracer, cpu)); |
100 | trace_hw_branches_suspended = 1; | 101 | trace_hw_branches_suspended = 1; |
101 | put_online_cpus(); | 102 | put_online_cpus(); |
102 | } | 103 | } |
@@ -114,16 +115,16 @@ static int __cpuinit bts_hotcpu_handler(struct notifier_block *nfb, | |||
114 | bts_trace_init_cpu(cpu); | 115 | bts_trace_init_cpu(cpu); |
115 | 116 | ||
116 | if (trace_hw_branches_suspended && | 117 | if (trace_hw_branches_suspended && |
117 | likely(per_cpu(tracer, cpu))) | 118 | likely(per_cpu(hwb_tracer, cpu))) |
118 | ds_suspend_bts(per_cpu(tracer, cpu)); | 119 | ds_suspend_bts(per_cpu(hwb_tracer, cpu)); |
119 | } | 120 | } |
120 | break; | 121 | break; |
121 | 122 | ||
122 | case CPU_DOWN_PREPARE: | 123 | case CPU_DOWN_PREPARE: |
123 | /* The notification is sent with interrupts enabled. */ | 124 | /* The notification is sent with interrupts enabled. */ |
124 | if (likely(per_cpu(tracer, cpu))) { | 125 | if (likely(per_cpu(hwb_tracer, cpu))) { |
125 | ds_release_bts(per_cpu(tracer, cpu)); | 126 | ds_release_bts(per_cpu(hwb_tracer, cpu)); |
126 | per_cpu(tracer, cpu) = NULL; | 127 | per_cpu(hwb_tracer, cpu) = NULL; |
127 | } | 128 | } |
128 | } | 129 | } |
129 | 130 | ||
@@ -258,8 +259,8 @@ static void trace_bts_prepare(struct trace_iterator *iter) | |||
258 | 259 | ||
259 | get_online_cpus(); | 260 | get_online_cpus(); |
260 | for_each_online_cpu(cpu) | 261 | for_each_online_cpu(cpu) |
261 | if (likely(per_cpu(tracer, cpu))) | 262 | if (likely(per_cpu(hwb_tracer, cpu))) |
262 | ds_suspend_bts(per_cpu(tracer, cpu)); | 263 | ds_suspend_bts(per_cpu(hwb_tracer, cpu)); |
263 | /* | 264 | /* |
264 | * We need to collect the trace on the respective cpu since ftrace | 265 | * We need to collect the trace on the respective cpu since ftrace |
265 | * implicitly adds the record for the current cpu. | 266 | * implicitly adds the record for the current cpu. |
@@ -268,8 +269,8 @@ static void trace_bts_prepare(struct trace_iterator *iter) | |||
268 | on_each_cpu(trace_bts_cpu, iter->tr, 1); | 269 | on_each_cpu(trace_bts_cpu, iter->tr, 1); |
269 | 270 | ||
270 | for_each_online_cpu(cpu) | 271 | for_each_online_cpu(cpu) |
271 | if (likely(per_cpu(tracer, cpu))) | 272 | if (likely(per_cpu(hwb_tracer, cpu))) |
272 | ds_resume_bts(per_cpu(tracer, cpu)); | 273 | ds_resume_bts(per_cpu(hwb_tracer, cpu)); |
273 | put_online_cpus(); | 274 | put_online_cpus(); |
274 | } | 275 | } |
275 | 276 | ||