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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-23 13:05:40 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-23 13:05:40 -0400
commit92fb83afd6664a6f8a05f990d264c998f9b99f69 (patch)
treeb5c65f2a14d1019d8e00d94dafbc65696906455c /drivers/oprofile/buffer_sync.c
parenta5344876065e047d507800d0801a637d68d3b129 (diff)
parentdf13b31c286b3e91c556167954eda088d90a4295 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile: (21 commits) OProfile: Fix buffer synchronization for IBS oprofile: hotplug cpu fix oprofile: fixing whitespaces in arch/x86/oprofile/* oprofile: fixing whitespaces in arch/x86/oprofile/* oprofile: fixing whitespaces in drivers/oprofile/* x86/oprofile: add the logic for enabling additional IBS bits x86/oprofile: reordering functions in nmi_int.c x86/oprofile: removing unused function parameter in add_ibs_begin() oprofile: more whitespace fixes oprofile: whitespace fixes OProfile: Rename IBS sysfs dir into "ibs_op" OProfile: Rework string handling in setup_ibs_files() OProfile: Rework oprofile_add_ibs_sample() function oprofile: discover counters for op ppro too oprofile: Implement Intel architectural perfmon support oprofile: Don't report Nehalem as core_2 oprofile: drop const in num counters field Revert "Oprofile Multiplexing Patch" x86, oprofile: BUG: using smp_processor_id() in preemptible code x86/oprofile: fix on_each_cpu build error ... Manually fixed trivial conflicts in drivers/oprofile/{cpu_buffer.c,event_buffer.h}
Diffstat (limited to 'drivers/oprofile/buffer_sync.c')
-rw-r--r--drivers/oprofile/buffer_sync.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index 37681700b61a..b55cd23ffdef 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -41,7 +41,6 @@ static cpumask_t marked_cpus = CPU_MASK_NONE;
41static DEFINE_SPINLOCK(task_mortuary); 41static DEFINE_SPINLOCK(task_mortuary);
42static void process_task_mortuary(void); 42static void process_task_mortuary(void);
43 43
44
45/* Take ownership of the task struct and place it on the 44/* Take ownership of the task struct and place it on the
46 * list for processing. Only after two full buffer syncs 45 * list for processing. Only after two full buffer syncs
47 * does the task eventually get freed, because by then 46 * does the task eventually get freed, because by then
@@ -341,7 +340,7 @@ static void add_trace_begin(void)
341 * Add IBS fetch and op entries to event buffer 340 * Add IBS fetch and op entries to event buffer
342 */ 341 */
343static void add_ibs_begin(struct oprofile_cpu_buffer *cpu_buf, int code, 342static void add_ibs_begin(struct oprofile_cpu_buffer *cpu_buf, int code,
344 int in_kernel, struct mm_struct *mm) 343 struct mm_struct *mm)
345{ 344{
346 unsigned long rip; 345 unsigned long rip;
347 int i, count; 346 int i, count;
@@ -565,9 +564,11 @@ void sync_buffer(int cpu)
565 struct task_struct *new; 564 struct task_struct *new;
566 unsigned long cookie = 0; 565 unsigned long cookie = 0;
567 int in_kernel = 1; 566 int in_kernel = 1;
568 unsigned int i;
569 sync_buffer_state state = sb_buffer_start; 567 sync_buffer_state state = sb_buffer_start;
568#ifndef CONFIG_OPROFILE_IBS
569 unsigned int i;
570 unsigned long available; 570 unsigned long available;
571#endif
571 572
572 mutex_lock(&buffer_mutex); 573 mutex_lock(&buffer_mutex);
573 574
@@ -575,9 +576,13 @@ void sync_buffer(int cpu)
575 576
576 /* Remember, only we can modify tail_pos */ 577 /* Remember, only we can modify tail_pos */
577 578
579#ifndef CONFIG_OPROFILE_IBS
578 available = get_slots(cpu_buf); 580 available = get_slots(cpu_buf);
579 581
580 for (i = 0; i < available; ++i) { 582 for (i = 0; i < available; ++i) {
583#else
584 while (get_slots(cpu_buf)) {
585#endif
581 struct op_sample *s = &cpu_buf->buffer[cpu_buf->tail_pos]; 586 struct op_sample *s = &cpu_buf->buffer[cpu_buf->tail_pos];
582 587
583 if (is_code(s->eip)) { 588 if (is_code(s->eip)) {
@@ -593,12 +598,10 @@ void sync_buffer(int cpu)
593#ifdef CONFIG_OPROFILE_IBS 598#ifdef CONFIG_OPROFILE_IBS
594 } else if (s->event == IBS_FETCH_BEGIN) { 599 } else if (s->event == IBS_FETCH_BEGIN) {
595 state = sb_bt_start; 600 state = sb_bt_start;
596 add_ibs_begin(cpu_buf, 601 add_ibs_begin(cpu_buf, IBS_FETCH_CODE, mm);
597 IBS_FETCH_CODE, in_kernel, mm);
598 } else if (s->event == IBS_OP_BEGIN) { 602 } else if (s->event == IBS_OP_BEGIN) {
599 state = sb_bt_start; 603 state = sb_bt_start;
600 add_ibs_begin(cpu_buf, 604 add_ibs_begin(cpu_buf, IBS_OP_CODE, mm);
601 IBS_OP_CODE, in_kernel, mm);
602#endif 605#endif
603 } else { 606 } else {
604 struct mm_struct *oldmm = mm; 607 struct mm_struct *oldmm = mm;