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Date: Thu, 10 Jun 2010 12:25:24 +0200
From: Ingo Molnar <mingo@...e.hu>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Paul Mackerras <paulus@...ba.org>,
Fr??d??ric Weisbecker <fweisbec@...il.com>,
Steven Rostedt <rostedt@...dmis.org>,
Robert Richter <robert.richter@....com>,
Thomas Gleixner <tglx@...utronix.de>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] perf fixes
Linus,
Please pull the latest perf-fixes-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git perf-fixes-for-linus
Thanks,
Ingo
------------------>
Arnaldo Carvalho de Melo (1):
perf symbols: Set the DSO long name when using symbol_conf.vmlinux_name
Denis Kirjanov (1):
powerpc/oprofile: fix potential buffer overrun in op_model_cell.c
Oleg Nesterov (1):
tracing: Fix null pointer deref with SEND_SIG_FORCED
Peter Zijlstra (1):
perf: Fix signed comparison in perf_adjust_period()
arch/powerpc/oprofile/op_model_cell.c | 2 +-
include/trace/events/signal.h | 3 ++-
kernel/perf_event.c | 5 ++++-
tools/perf/util/symbol.c | 8 ++++++--
4 files changed, 13 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/oprofile/op_model_cell.c b/arch/powerpc/oprofile/op_model_cell.c
index 2c9e522..7fd90d0 100644
--- a/arch/powerpc/oprofile/op_model_cell.c
+++ b/arch/powerpc/oprofile/op_model_cell.c
@@ -1077,7 +1077,7 @@ static int calculate_lfsr(int n)
index = ENTRIES-1;
/* make sure index is valid */
- if ((index > ENTRIES) || (index < 0))
+ if ((index >= ENTRIES) || (index < 0))
index = ENTRIES-1;
return initial_lfsr[index];
diff --git a/include/trace/events/signal.h b/include/trace/events/signal.h
index 814566c..17df434 100644
--- a/include/trace/events/signal.h
+++ b/include/trace/events/signal.h
@@ -10,7 +10,8 @@
#define TP_STORE_SIGINFO(__entry, info) \
do { \
- if (info == SEND_SIG_NOINFO) { \
+ if (info == SEND_SIG_NOINFO || \
+ info == SEND_SIG_FORCED) { \
__entry->errno = 0; \
__entry->code = SI_USER; \
} else if (info == SEND_SIG_PRIV) { \
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 31d6afe..ff86c55 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -1507,6 +1507,9 @@ do { \
divisor = nsec * frequency;
}
+ if (!divisor)
+ return dividend;
+
return div64_u64(dividend, divisor);
}
@@ -1529,7 +1532,7 @@ static int perf_event_start(struct perf_event *event)
static void perf_adjust_period(struct perf_event *event, u64 nsec, u64 count)
{
struct hw_perf_event *hwc = &event->hw;
- u64 period, sample_period;
+ s64 period, sample_period;
s64 delta;
period = perf_calculate_period(event, nsec, count);
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 7fd6b15..b63e571 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1745,7 +1745,12 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map,
if (symbol_conf.vmlinux_name != NULL) {
err = dso__load_vmlinux(self, map,
symbol_conf.vmlinux_name, filter);
- goto out_try_fixup;
+ if (err > 0) {
+ dso__set_long_name(self,
+ strdup(symbol_conf.vmlinux_name));
+ goto out_fixup;
+ }
+ return err;
}
if (vmlinux_path != NULL) {
@@ -1806,7 +1811,6 @@ do_kallsyms:
pr_debug("Using %s for symbols\n", kallsyms_filename);
free(kallsyms_allocated_filename);
-out_try_fixup:
if (err > 0) {
out_fixup:
if (kallsyms_filename != NULL)
--
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