Commit-ID: c719f56092add9b3d4192f57c64ce7af11105130
Gitweb: http://git.kernel.org/tip/c719f56092add9b3d4192f57c64ce7af11105130
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
AuthorDate: Tue, 21 Oct 2014 11:10:21 +0200
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Tue, 28 Oct 2014 10:51:01 +0100
perf: Fix and clean up initialization of pmu::event_idx
Andy reported that the current state of event_idx is rather confused.
So remove all but the x86_pmu implementation and change the default to
return 0 (the safe option).
Reported-by: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Cody P Schafer <cody@xxxxxxxxxxxxxxxxxx>
Cc: Cody P Schafer <dev@xxxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: Hendrik Brueckner <brueckner@xxxxxxxxxxxxxxxxxx>
Cc: Himangi Saraogi <himangi774@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: sukadev@xxxxxxxxxxxxxxxxxx <sukadev@xxxxxxxxxxxxxxxxxx>
Cc: Thomas Huth <thuth@xxxxxxxxxxxxxxxxxx>
Cc: Vince Weaver <vincent.weaver@xxxxxxxxx>
Cc: linux390@xxxxxxxxxx
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
Cc: linux-s390@xxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/powerpc/perf/hv-24x7.c | 6 ------
arch/powerpc/perf/hv-gpci.c | 6 ------
arch/s390/kernel/perf_cpum_sf.c | 6 ------
kernel/events/core.c | 15 +--------------
kernel/events/hw_breakpoint.c | 7 -------
5 files changed, 1 insertion(+), 39 deletions(-)
diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index 6c8710d..dba3408 100644
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -417,11 +417,6 @@ static int h_24x7_event_add(struct perf_event *event, int flags)
return 0;
}
-static int h_24x7_event_idx(struct perf_event *event)
-{
- return 0;
-}
-
static struct pmu h_24x7_pmu = {
.task_ctx_nr = perf_invalid_context,
@@ -433,7 +428,6 @@ static struct pmu h_24x7_pmu = {
.start = h_24x7_event_start,
.stop = h_24x7_event_stop,
.read = h_24x7_event_update,
- .event_idx = h_24x7_event_idx,
};
static int hv_24x7_init(void)
diff --git a/arch/powerpc/perf/hv-gpci.c b/arch/powerpc/perf/hv-gpci.c
index 15fc76c..a051fe9 100644
--- a/arch/powerpc/perf/hv-gpci.c
+++ b/arch/powerpc/perf/hv-gpci.c
@@ -246,11 +246,6 @@ static int h_gpci_event_init(struct perf_event *event)
return 0;
}
-static int h_gpci_event_idx(struct perf_event *event)
-{
- return 0;
-}
-
static struct pmu h_gpci_pmu = {
.task_ctx_nr = perf_invalid_context,
@@ -262,7 +257,6 @@ static struct pmu h_gpci_pmu = {
.start = h_gpci_event_start,
.stop = h_gpci_event_stop,
.read = h_gpci_event_update,
- .event_idx = h_gpci_event_idx,
};
static int hv_gpci_init(void)
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index 08e7613..b878f12 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1411,11 +1411,6 @@ static void cpumsf_pmu_del(struct perf_event *event, int flags)
perf_pmu_enable(event->pmu);
}
-static int cpumsf_pmu_event_idx(struct perf_event *event)
-{
- return event->hw.idx;
-}
-
CPUMF_EVENT_ATTR(SF, SF_CYCLES_BASIC, PERF_EVENT_CPUM_SF);
CPUMF_EVENT_ATTR(SF, SF_CYCLES_BASIC_DIAG, PERF_EVENT_CPUM_SF_DIAG);
@@ -1458,7 +1453,6 @@ static struct pmu cpumf_sampling = {
.stop = cpumsf_pmu_stop,
.read = cpumsf_pmu_read,
- .event_idx = cpumsf_pmu_event_idx,
.attr_groups = cpumsf_pmu_attr_groups,
};
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 1425d07..2b02c9f 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -6071,11 +6071,6 @@ static int perf_swevent_init(struct perf_event *event)
return 0;
}
-static int perf_swevent_event_idx(struct perf_event *event)
-{
- return 0;
-}
-
static struct pmu perf_swevent = {
.task_ctx_nr = perf_sw_context,
@@ -6085,8 +6080,6 @@ static struct pmu perf_swevent = {
.start = perf_swevent_start,
.stop = perf_swevent_stop,
.read = perf_swevent_read,
-
- .event_idx = perf_swevent_event_idx,
};
#ifdef CONFIG_EVENT_TRACING
@@ -6204,8 +6197,6 @@ static struct pmu perf_tracepoint = {
.start = perf_swevent_start,
.stop = perf_swevent_stop,
.read = perf_swevent_read,
-
- .event_idx = perf_swevent_event_idx,
};
static inline void perf_tp_register(void)
@@ -6431,8 +6422,6 @@ static struct pmu perf_cpu_clock = {
.start = cpu_clock_event_start,
.stop = cpu_clock_event_stop,
.read = cpu_clock_event_read,
-
- .event_idx = perf_swevent_event_idx,
};
/*
@@ -6511,8 +6500,6 @@ static struct pmu perf_task_clock = {
.start = task_clock_event_start,
.stop = task_clock_event_stop,
.read = task_clock_event_read,
-
- .event_idx = perf_swevent_event_idx,
};
static void perf_pmu_nop_void(struct pmu *pmu)
@@ -6542,7 +6529,7 @@ static void perf_pmu_cancel_txn(struct pmu *pmu)
static int perf_event_idx_default(struct perf_event *event)
{
- return event->hw.idx + 1;
+ return 0;
}
/*
diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c
index 1559fb0..9803a66 100644
--- a/kernel/events/hw_breakpoint.c
+++ b/kernel/events/hw_breakpoint.c
@@ -605,11 +605,6 @@ static void hw_breakpoint_stop(struct perf_event *bp, int flags)
bp->hw.state = PERF_HES_STOPPED;
}
-static int hw_breakpoint_event_idx(struct perf_event *bp)
-{
- return 0;
-}
-
static struct pmu perf_breakpoint = {
.task_ctx_nr = perf_sw_context, /* could eventually get its own */
@@ -619,8 +614,6 @@ static struct pmu perf_breakpoint = {
.start = hw_breakpoint_start,
.stop = hw_breakpoint_stop,
.read = hw_breakpoint_pmu_read,
-
- .event_idx = hw_breakpoint_event_idx,
};
int __init init_hw_breakpoint(void)
--
To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
|