[GIT pull] core/urgent for 5.3-rc4

[GIT pull] core/urgent for 5.3-rc4

[Thomas Gleixner]

Linus,

please pull the latest core-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core-urgent-for-linus

up to:  e6a9522ac3ff: drm/i915: Remove redundant user_access_end() from __copy_from_user() error path

A fix for code outside the scope of tip. The recent objtool
fixes/enhancements unearthed a unbalanced CLAC in the i915 driver. Chris
asked me to pick the fix up and route it through.

Thanks,

	tglx

------------------>
Josh Poimboeuf (1):
      drm/i915: Remove redundant user_access_end() from __copy_from_user() error path


 drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 5fae0e50aad0..41dab9ea33cd 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -1628,6 +1628,7 @@ static int check_relocations(const struct drm_i915_gem_exec_object2 *entry)
 
 static int eb_copy_relocations(const struct i915_execbuffer *eb)
 {
+	struct drm_i915_gem_relocation_entry *relocs;
 	const unsigned int count = eb->buffer_count;
 	unsigned int i;
 	int err;
@@ -1635,7 +1636,6 @@ static int eb_copy_relocations(const struct i915_execbuffer *eb)
 	for (i = 0; i < count; i++) {
 		const unsigned int nreloc = eb->exec[i].relocation_count;
 		struct drm_i915_gem_relocation_entry __user *urelocs;
-		struct drm_i915_gem_relocation_entry *relocs;
 		unsigned long size;
 		unsigned long copied;
 
@@ -1663,14 +1663,8 @@ static int eb_copy_relocations(const struct i915_execbuffer *eb)
 
 			if (__copy_from_user((char *)relocs + copied,
 					     (char __user *)urelocs + copied,
-					     len)) {
-end_user:
-				user_access_end();
-end:
-				kvfree(relocs);
-				err = -EFAULT;
-				goto err;
-			}
+					     len))
+				goto end;
 
 			copied += len;
 		} while (copied < size);
@@ -1699,10 +1693,14 @@ static int eb_copy_relocations(const struct i915_execbuffer *eb)
 
 	return 0;
 
+end_user:
+	user_access_end();
+end:
+	kvfree(relocs);
+	err = -EFAULT;
 err:
 	while (i--) {
-		struct drm_i915_gem_relocation_entry *relocs =
-			u64_to_ptr(typeof(*relocs), eb->exec[i].relocs_ptr);
+		relocs = u64_to_ptr(typeof(*relocs), eb->exec[i].relocs_ptr);
 		if (eb->exec[i].relocation_count)
 			kvfree(relocs);
 	}

[GIT pull] irq/urgent for 5.3-rc4

[Thomas Gleixner]

Linus,

please pull the latest irq-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq-urgent-for-linus

up to:  491beed3b102: genirq/affinity: Create affinity mask for single vector

A small fix for the affinity spreading code. It failed to handle situations
where a single vector was requested either due to only one CPU being
available or vector exhaustion causing only a single interrupt to be
granted. The fix is to simply remove the requirement in the affinity
spreading code for more than one interrupt being available.

Thanks,

	tglx

------------------>
Ming Lei (1):
      genirq/affinity: Create affinity mask for single vector


 kernel/irq/affinity.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/kernel/irq/affinity.c b/kernel/irq/affinity.c
index 4352b08ae48d..6fef48033f96 100644
--- a/kernel/irq/affinity.c
+++ b/kernel/irq/affinity.c
@@ -251,11 +251,9 @@ irq_create_affinity_masks(unsigned int nvecs, struct irq_affinity *affd)
 	 * Determine the number of vectors which need interrupt affinities
 	 * assigned. If the pre/post request exhausts the available vectors
 	 * then nothing to do here except for invoking the calc_sets()
-	 * callback so the device driver can adjust to the situation. If there
-	 * is only a single vector, then managing the queue is pointless as
-	 * well.
+	 * callback so the device driver can adjust to the situation.
 	 */
-	if (nvecs > 1 && nvecs > affd->pre_vectors + affd->post_vectors)
+	if (nvecs > affd->pre_vectors + affd->post_vectors)
 		affvecs = nvecs - affd->pre_vectors - affd->post_vectors;
 	else
 		affvecs = 0;

Re: [GIT pull] irq/urgent for 5.3-rc4

[pr-tracker-bot]

The pull request you sent on Sat, 10 Aug 2019 20:01:51 -0000:

> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq-urgent-for-linus

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/ed254bb54fed18549b96285cfdadd69780f52c14

Thank you!

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[GIT pull] sched/urgent for 5.3-rc4

[Thomas Gleixner]

Linus,

please pull the latest sched-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-urgent-for-linus

up to:  04e048cf09d7: sched/psi: Do not require setsched permission from the trigger creator

Three fixlets for the scheduler:

 - Avoid double bandwidth accounting in the push & pull code

 - Use a sane FIFO priority for the Pressure Stall Information (PSI) thread.
 
 - Avoid permission checks when setting the scheduler params for the PSI thread

Thanks,

	tglx

------------------>
Dietmar Eggemann (1):
      sched/deadline: Fix double accounting of rq/running bw in push & pull

Peter Zijlstra (1):
      sched/psi: Reduce psimon FIFO priority

Suren Baghdasaryan (1):
      sched/psi: Do not require setsched permission from the trigger creator


 kernel/sched/deadline.c | 8 --------
 kernel/sched/psi.c      | 4 ++--
 2 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index ef5b9f6b1d42..46122edd8552 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -2088,17 +2088,13 @@ static int push_dl_task(struct rq *rq)
 	}
 
 	deactivate_task(rq, next_task, 0);
-	sub_running_bw(&next_task->dl, &rq->dl);
-	sub_rq_bw(&next_task->dl, &rq->dl);
 	set_task_cpu(next_task, later_rq->cpu);
-	add_rq_bw(&next_task->dl, &later_rq->dl);
 
 	/*
 	 * Update the later_rq clock here, because the clock is used
 	 * by the cpufreq_update_util() inside __add_running_bw().
 	 */
 	update_rq_clock(later_rq);
-	add_running_bw(&next_task->dl, &later_rq->dl);
 	activate_task(later_rq, next_task, ENQUEUE_NOCLOCK);
 	ret = 1;
 
@@ -2186,11 +2182,7 @@ static void pull_dl_task(struct rq *this_rq)
 			resched = true;
 
 			deactivate_task(src_rq, p, 0);
-			sub_running_bw(&p->dl, &src_rq->dl);
-			sub_rq_bw(&p->dl, &src_rq->dl);
 			set_task_cpu(p, this_cpu);
-			add_rq_bw(&p->dl, &this_rq->dl);
-			add_running_bw(&p->dl, &this_rq->dl);
 			activate_task(this_rq, p, 0);
 			dmin = p->dl.deadline;
 
diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c
index 7acc632c3b82..23fbbcc414d5 100644
--- a/kernel/sched/psi.c
+++ b/kernel/sched/psi.c
@@ -1051,7 +1051,7 @@ struct psi_trigger *psi_trigger_create(struct psi_group *group,
 
 	if (!rcu_access_pointer(group->poll_kworker)) {
 		struct sched_param param = {
-			.sched_priority = MAX_RT_PRIO - 1,
+			.sched_priority = 1,
 		};
 		struct kthread_worker *kworker;
 
@@ -1061,7 +1061,7 @@ struct psi_trigger *psi_trigger_create(struct psi_group *group,
 			mutex_unlock(&group->trigger_lock);
 			return ERR_CAST(kworker);
 		}
-		sched_setscheduler(kworker->task, SCHED_FIFO, &param);
+		sched_setscheduler_nocheck(kworker->task, SCHED_FIFO, &param);
 		kthread_init_delayed_work(&group->poll_work,
 				psi_poll_work);
 		rcu_assign_pointer(group->poll_kworker, kworker);

Re: [GIT pull] sched/urgent for 5.3-rc4

[pr-tracker-bot]

The pull request you sent on Sat, 10 Aug 2019 20:01:51 -0000:

> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-urgent-for-linus

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/dcbb4a153971ff8646af0c963f5698bf21bfbfdc

Thank you!

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Deet-doot-dot, I am a bot.
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[GIT pull] x86/urgent for 5.3-rc4

[Thomas Gleixner]

Linus,

please pull the latest x86-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-for-linus

up to:  04f5bda84b07: x86/lib/cpu: Address missing prototypes warning

A few fixes for x86:

 - Don't reset the carefully adjusted build flags for the purgatory and
   remove the unwanted flags instead. The 'reset all' approach led to build
   fails under certain circumstances.

 - Unbreak CLANG build of the purgatory by avoiding the builtin
   memcpy/memset implementations.

 - Address missing prototype warnings by including the proper header

 - Fix yet more fall-through issues

Thanks,

	tglx

------------------>
Gustavo A. R. Silva (2):
      x86/ptrace: Mark expected switch fall-through
      x86: mtrr: cyrix: Mark expected switch fall-through

Nick Desaulniers (2):
      x86/purgatory: Do not use __builtin_memcpy and __builtin_memset
      x86/purgatory: Use CFLAGS_REMOVE rather than reset KBUILD_CFLAGS

Valdis Kletnieks (1):
      x86/lib/cpu: Address missing prototypes warning


 arch/x86/boot/string.c           |  8 ++++++++
 arch/x86/kernel/cpu/mtrr/cyrix.c |  1 +
 arch/x86/kernel/ptrace.c         |  1 +
 arch/x86/lib/cpu.c               |  1 +
 arch/x86/purgatory/Makefile      | 36 +++++++++++++++++++++++++++++++-----
 arch/x86/purgatory/purgatory.c   |  6 ++++++
 arch/x86/purgatory/string.c      | 23 -----------------------
 7 files changed, 48 insertions(+), 28 deletions(-)
 delete mode 100644 arch/x86/purgatory/string.c

diff --git a/arch/x86/boot/string.c b/arch/x86/boot/string.c
index 401e30ca0a75..8272a4492844 100644
--- a/arch/x86/boot/string.c
+++ b/arch/x86/boot/string.c
@@ -37,6 +37,14 @@ int memcmp(const void *s1, const void *s2, size_t len)
 	return diff;
 }
 
+/*
+ * Clang may lower `memcmp == 0` to `bcmp == 0`.
+ */
+int bcmp(const void *s1, const void *s2, size_t len)
+{
+	return memcmp(s1, s2, len);
+}
+
 int strcmp(const char *str1, const char *str2)
 {
 	const unsigned char *s1 = (const unsigned char *)str1;
diff --git a/arch/x86/kernel/cpu/mtrr/cyrix.c b/arch/x86/kernel/cpu/mtrr/cyrix.c
index 4296c702a3f7..72182809b333 100644
--- a/arch/x86/kernel/cpu/mtrr/cyrix.c
+++ b/arch/x86/kernel/cpu/mtrr/cyrix.c
@@ -98,6 +98,7 @@ cyrix_get_free_region(unsigned long base, unsigned long size, int replace_reg)
 	case 7:
 		if (size < 0x40)
 			break;
+		/* Else, fall through */
 	case 6:
 	case 5:
 	case 4:
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 0fdbe89d0754..3c5bbe8e4120 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -201,6 +201,7 @@ static int set_segment_reg(struct task_struct *task,
 	case offsetof(struct user_regs_struct, ss):
 		if (unlikely(value == 0))
 			return -EIO;
+		/* Else, fall through */
 
 	default:
 		*pt_regs_access(task_pt_regs(task), offset) = value;
diff --git a/arch/x86/lib/cpu.c b/arch/x86/lib/cpu.c
index 04967cdce5d1..7ad68917a51e 100644
--- a/arch/x86/lib/cpu.c
+++ b/arch/x86/lib/cpu.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #include <linux/types.h>
 #include <linux/export.h>
+#include <asm/cpu.h>
 
 unsigned int x86_family(unsigned int sig)
 {
diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index 3cf302b26332..8901a1f89cf5 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -6,6 +6,9 @@ purgatory-y := purgatory.o stack.o setup-x86_$(BITS).o sha256.o entry64.o string
 targets += $(purgatory-y)
 PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y))
 
+$(obj)/string.o: $(srctree)/arch/x86/boot/compressed/string.c FORCE
+	$(call if_changed_rule,cc_o_c)
+
 $(obj)/sha256.o: $(srctree)/lib/sha256.c FORCE
 	$(call if_changed_rule,cc_o_c)
 
@@ -17,11 +20,34 @@ KCOV_INSTRUMENT := n
 
 # Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That
 # in turn leaves some undefined symbols like __fentry__ in purgatory and not
-# sure how to relocate those. Like kexec-tools, use custom flags.
-
-KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -Os -mcmodel=large
-KBUILD_CFLAGS += -m$(BITS)
-KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
+# sure how to relocate those.
+ifdef CONFIG_FUNCTION_TRACER
+CFLAGS_REMOVE_sha256.o		+= $(CC_FLAGS_FTRACE)
+CFLAGS_REMOVE_purgatory.o	+= $(CC_FLAGS_FTRACE)
+CFLAGS_REMOVE_string.o		+= $(CC_FLAGS_FTRACE)
+CFLAGS_REMOVE_kexec-purgatory.o	+= $(CC_FLAGS_FTRACE)
+endif
+
+ifdef CONFIG_STACKPROTECTOR
+CFLAGS_REMOVE_sha256.o		+= -fstack-protector
+CFLAGS_REMOVE_purgatory.o	+= -fstack-protector
+CFLAGS_REMOVE_string.o		+= -fstack-protector
+CFLAGS_REMOVE_kexec-purgatory.o	+= -fstack-protector
+endif
+
+ifdef CONFIG_STACKPROTECTOR_STRONG
+CFLAGS_REMOVE_sha256.o		+= -fstack-protector-strong
+CFLAGS_REMOVE_purgatory.o	+= -fstack-protector-strong
+CFLAGS_REMOVE_string.o		+= -fstack-protector-strong
+CFLAGS_REMOVE_kexec-purgatory.o	+= -fstack-protector-strong
+endif
+
+ifdef CONFIG_RETPOLINE
+CFLAGS_REMOVE_sha256.o		+= $(RETPOLINE_CFLAGS)
+CFLAGS_REMOVE_purgatory.o	+= $(RETPOLINE_CFLAGS)
+CFLAGS_REMOVE_string.o		+= $(RETPOLINE_CFLAGS)
+CFLAGS_REMOVE_kexec-purgatory.o	+= $(RETPOLINE_CFLAGS)
+endif
 
 $(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
 		$(call if_changed,ld)
diff --git a/arch/x86/purgatory/purgatory.c b/arch/x86/purgatory/purgatory.c
index 6d8d5a34c377..b607bda786f6 100644
--- a/arch/x86/purgatory/purgatory.c
+++ b/arch/x86/purgatory/purgatory.c
@@ -68,3 +68,9 @@ void purgatory(void)
 	}
 	copy_backup_region();
 }
+
+/*
+ * Defined in order to reuse memcpy() and memset() from
+ * arch/x86/boot/compressed/string.c
+ */
+void warn(const char *msg) {}
diff --git a/arch/x86/purgatory/string.c b/arch/x86/purgatory/string.c
deleted file mode 100644
index 01ad43873ad9..000000000000
--- a/arch/x86/purgatory/string.c
+++ /dev/null
@@ -1,23 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Simple string functions.
- *
- * Copyright (C) 2014 Red Hat Inc.
- *
- * Author:
- *       Vivek Goyal <vgoyal@redhat.com>
- */
-
-#include <linux/types.h>
-
-#include "../boot/string.c"
-
-void *memcpy(void *dst, const void *src, size_t len)
-{
-	return __builtin_memcpy(dst, src, len);
-}
-
-void *memset(void *dst, int c, size_t len)
-{
-	return __builtin_memset(dst, c, len);
-}

Re: [GIT pull] x86/urgent for 5.3-rc4

[pr-tracker-bot]

The pull request you sent on Sat, 10 Aug 2019 20:01:51 -0000:

> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-for-linus

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/6d8f809cb55a8fc0ebfae27984215e4a0b201984

Thank you!

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Deet-doot-dot, I am a bot.
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[GIT pull] perf/urgent for 5.3-rc4

[Thomas Gleixner]

Linus,

please pull the latest perf-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-urgent-for-linus

up to:  d7731b8133ad: Merge tag 'perf-urgent-for-mingo-5.3-20190808' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Perf tooling fixes all over the place:

 - Fix the selection of the main thread COMM in db-export

 - Fix the disassemmbly display for BPF in annotate

 - Fix cpumap mask setup in perf ftrace when only one CPU is present

 - Add the missing 'cpu_clk_unhalted.core' event

 - Fix CPU 0 bindings in NUMA benchmarks

 - Fix the module size calculations for s390

 - Handle the gap between kernel end and module start on s390 correctly

 - Build and typo fixes

Thanks,

	tglx

------------------>
Adrian Hunter (1):
      perf db-export: Fix thread__exec_comm()

Arnaldo Carvalho de Melo (1):
      perf annotate: Fix printing of unaugmented disassembled instructions from BPF

He Zhe (2):
      perf ftrace: Fix failure to set cpumask when only one cpu is present
      perf cpumap: Fix writing to illegal memory in handling cpumap mask

Ian Rogers (1):
      perf tools: Fix include paths in ui directory

Jin Yao (1):
      perf pmu-events: Fix missing "cpu_clk_unhalted.core" event

Jiri Olsa (1):
      perf bench numa: Fix cpu0 binding

Masanari Iida (1):
      perf tools: Fix a typo in a variable name in the Documentation Makefile

Thomas Richter (2):
      perf record: Fix module size on s390
      perf annotate: Fix s390 gap between kernel end and module start


 tools/perf/Documentation/Makefile   |  2 +-
 tools/perf/arch/s390/util/machine.c | 31 ++++++++++++++++++++++++++++++-
 tools/perf/bench/numa.c             |  6 ++++--
 tools/perf/builtin-ftrace.c         |  2 +-
 tools/perf/pmu-events/jevents.c     |  1 +
 tools/perf/ui/browser.c             |  9 +++++----
 tools/perf/ui/tui/progress.c        |  2 +-
 tools/perf/util/annotate.c          |  2 +-
 tools/perf/util/cpumap.c            |  5 ++++-
 tools/perf/util/machine.c           |  3 ++-
 tools/perf/util/machine.h           |  2 +-
 tools/perf/util/symbol.c            |  7 ++++++-
 tools/perf/util/symbol.h            |  1 +
 tools/perf/util/thread.c            | 12 +++++++++++-
 14 files changed, 69 insertions(+), 16 deletions(-)

diff --git a/tools/perf/Documentation/Makefile b/tools/perf/Documentation/Makefile
index 6d148a40551c..adc5a7e44b98 100644
--- a/tools/perf/Documentation/Makefile
+++ b/tools/perf/Documentation/Makefile
@@ -242,7 +242,7 @@ $(OUTPUT)doc.dep : $(wildcard *.txt) build-docdep.perl
 	$(PERL_PATH) ./build-docdep.perl >$@+ $(QUIET_STDERR) && \
 	mv $@+ $@
 
--include $(OUPTUT)doc.dep
+-include $(OUTPUT)doc.dep
 
 _cmds_txt = cmds-ancillaryinterrogators.txt \
 	cmds-ancillarymanipulators.txt \
diff --git a/tools/perf/arch/s390/util/machine.c b/tools/perf/arch/s390/util/machine.c
index a19690a17291..c8c86a0c9b79 100644
--- a/tools/perf/arch/s390/util/machine.c
+++ b/tools/perf/arch/s390/util/machine.c
@@ -6,8 +6,9 @@
 #include "machine.h"
 #include "api/fs/fs.h"
 #include "debug.h"
+#include "symbol.h"
 
-int arch__fix_module_text_start(u64 *start, const char *name)
+int arch__fix_module_text_start(u64 *start, u64 *size, const char *name)
 {
 	u64 m_start = *start;
 	char path[PATH_MAX];
@@ -17,7 +18,35 @@ int arch__fix_module_text_start(u64 *start, const char *name)
 	if (sysfs__read_ull(path, (unsigned long long *)start) < 0) {
 		pr_debug2("Using module %s start:%#lx\n", path, m_start);
 		*start = m_start;
+	} else {
+		/* Successful read of the modules segment text start address.
+		 * Calculate difference between module start address
+		 * in memory and module text segment start address.
+		 * For example module load address is 0x3ff8011b000
+		 * (from /proc/modules) and module text segment start
+		 * address is 0x3ff8011b870 (from file above).
+		 *
+		 * Adjust the module size and subtract the GOT table
+		 * size located at the beginning of the module.
+		 */
+		*size -= (*start - m_start);
 	}
 
 	return 0;
 }
+
+/* On s390 kernel text segment start is located at very low memory addresses,
+ * for example 0x10000. Modules are located at very high memory addresses,
+ * for example 0x3ff xxxx xxxx. The gap between end of kernel text segment
+ * and beginning of first module's text segment is very big.
+ * Therefore do not fill this gap and do not assign it to the kernel dso map.
+ */
+void arch__symbols__fixup_end(struct symbol *p, struct symbol *c)
+{
+	if (strchr(p->name, '[') == NULL && strchr(c->name, '['))
+		/* Last kernel symbol mapped to end of page */
+		p->end = roundup(p->end, page_size);
+	else
+		p->end = c->start;
+	pr_debug4("%s sym:%s end:%#lx\n", __func__, p->name, p->end);
+}
diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index a640ca7aaada..513cb2f2fa32 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -379,8 +379,10 @@ static u8 *alloc_data(ssize_t bytes0, int map_flags,
 
 	/* Allocate and initialize all memory on CPU#0: */
 	if (init_cpu0) {
-		orig_mask = bind_to_node(0);
-		bind_to_memnode(0);
+		int node = numa_node_of_cpu(0);
+
+		orig_mask = bind_to_node(node);
+		bind_to_memnode(node);
 	}
 
 	bytes = bytes0 + HPSIZE;
diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c
index 66d5a6658daf..019312810405 100644
--- a/tools/perf/builtin-ftrace.c
+++ b/tools/perf/builtin-ftrace.c
@@ -173,7 +173,7 @@ static int set_tracing_cpumask(struct cpu_map *cpumap)
 	int last_cpu;
 
 	last_cpu = cpu_map__cpu(cpumap, cpumap->nr - 1);
-	mask_size = (last_cpu + 3) / 4 + 1;
+	mask_size = last_cpu / 4 + 2; /* one more byte for EOS */
 	mask_size += last_cpu / 32; /* ',' is needed for every 32th cpus */
 
 	cpumask = malloc(mask_size);
diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index 1a91a197cafb..d413761621b0 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -453,6 +453,7 @@ static struct fixed {
 	{ "inst_retired.any_p", "event=0xc0" },
 	{ "cpu_clk_unhalted.ref", "event=0x0,umask=0x03" },
 	{ "cpu_clk_unhalted.thread", "event=0x3c" },
+	{ "cpu_clk_unhalted.core", "event=0x3c" },
 	{ "cpu_clk_unhalted.thread_any", "event=0x3c,any=1" },
 	{ NULL, NULL},
 };
diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index f80c51d53565..d227d74b28f8 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -1,7 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0
-#include "../string2.h"
-#include "../config.h"
-#include "../../perf.h"
+#include "../util/util.h"
+#include "../util/string2.h"
+#include "../util/config.h"
+#include "../perf.h"
 #include "libslang.h"
 #include "ui.h"
 #include "util.h"
@@ -14,7 +15,7 @@
 #include "browser.h"
 #include "helpline.h"
 #include "keysyms.h"
-#include "../color.h"
+#include "../util/color.h"
 #include <linux/ctype.h>
 #include <linux/zalloc.h>
 
diff --git a/tools/perf/ui/tui/progress.c b/tools/perf/ui/tui/progress.c
index bc134b82829d..5a24dd3ce4db 100644
--- a/tools/perf/ui/tui/progress.c
+++ b/tools/perf/ui/tui/progress.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
-#include "../cache.h"
+#include "../../util/cache.h"
 #include "../progress.h"
 #include "../libslang.h"
 #include "../ui.h"
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index ac9ad2330f93..163536720149 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1122,7 +1122,7 @@ static int disasm_line__parse(char *line, const char **namep, char **rawp)
 		goto out;
 
 	(*rawp)[0] = tmp;
-	*rawp = skip_spaces(*rawp);
+	*rawp = strim(*rawp);
 
 	return 0;
 
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index 3acfbe34ebaf..39cce66b4ebc 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -751,7 +751,10 @@ size_t cpu_map__snprint_mask(struct cpu_map *map, char *buf, size_t size)
 	unsigned char *bitmap;
 	int last_cpu = cpu_map__cpu(map, map->nr - 1);
 
-	bitmap = zalloc((last_cpu + 7) / 8);
+	if (buf == NULL)
+		return 0;
+
+	bitmap = zalloc(last_cpu / 8 + 1);
 	if (bitmap == NULL) {
 		buf[0] = '\0';
 		return 0;
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index cf826eca3aaf..83b2fbbeeb90 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1378,6 +1378,7 @@ static int machine__set_modules_path(struct machine *machine)
 	return map_groups__set_modules_path_dir(&machine->kmaps, modules_path, 0);
 }
 int __weak arch__fix_module_text_start(u64 *start __maybe_unused,
+				u64 *size __maybe_unused,
 				const char *name __maybe_unused)
 {
 	return 0;
@@ -1389,7 +1390,7 @@ static int machine__create_module(void *arg, const char *name, u64 start,
 	struct machine *machine = arg;
 	struct map *map;
 
-	if (arch__fix_module_text_start(&start, name) < 0)
+	if (arch__fix_module_text_start(&start, &size, name) < 0)
 		return -1;
 
 	map = machine__findnew_module_map(machine, start, name);
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index f70ab98a7bde..7aa38da26427 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -222,7 +222,7 @@ struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
 
 struct map *machine__findnew_module_map(struct machine *machine, u64 start,
 					const char *filename);
-int arch__fix_module_text_start(u64 *start, const char *name);
+int arch__fix_module_text_start(u64 *start, u64 *size, const char *name);
 
 int machine__load_kallsyms(struct machine *machine, const char *filename);
 
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 173f3378aaa0..4efde7879474 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -92,6 +92,11 @@ static int prefix_underscores_count(const char *str)
 	return tail - str;
 }
 
+void __weak arch__symbols__fixup_end(struct symbol *p, struct symbol *c)
+{
+	p->end = c->start;
+}
+
 const char * __weak arch__normalize_symbol_name(const char *name)
 {
 	return name;
@@ -218,7 +223,7 @@ void symbols__fixup_end(struct rb_root_cached *symbols)
 		curr = rb_entry(nd, struct symbol, rb_node);
 
 		if (prev->end == prev->start && prev->end != curr->start)
-			prev->end = curr->start;
+			arch__symbols__fixup_end(prev, curr);
 	}
 
 	/* Last entry */
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 12755b42ea93..183f630cb5f1 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -288,6 +288,7 @@ const char *arch__normalize_symbol_name(const char *name);
 #define SYMBOL_A 0
 #define SYMBOL_B 1
 
+void arch__symbols__fixup_end(struct symbol *p, struct symbol *c);
 int arch__compare_symbol_names(const char *namea, const char *nameb);
 int arch__compare_symbol_names_n(const char *namea, const char *nameb,
 				 unsigned int n);
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 873ab505ca80..590793cc5142 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -214,14 +214,24 @@ struct comm *thread__comm(const struct thread *thread)
 
 struct comm *thread__exec_comm(const struct thread *thread)
 {
-	struct comm *comm, *last = NULL;
+	struct comm *comm, *last = NULL, *second_last = NULL;
 
 	list_for_each_entry(comm, &thread->comm_list, list) {
 		if (comm->exec)
 			return comm;
+		second_last = last;
 		last = comm;
 	}
 
+	/*
+	 * 'last' with no start time might be the parent's comm of a synthesized
+	 * thread (created by processing a synthesized fork event). For a main
+	 * thread, that is very probably wrong. Prefer a later comm to avoid
+	 * that case.
+	 */
+	if (second_last && !last->start && thread->pid_ == thread->tid)
+		return second_last;
+
 	return last;
 }
 

Re: [GIT pull] perf/urgent for 5.3-rc4

[pr-tracker-bot]

The pull request you sent on Sat, 10 Aug 2019 20:01:51 -0000:

> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-urgent-for-linus

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/d2359a5153ebb16412daedd8f104b886643cbd1a

Thank you!

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Re: [GIT pull] core/urgent for 5.3-rc4

[pr-tracker-bot]

The pull request you sent on Sat, 10 Aug 2019 20:01:51 -0000:

> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core-urgent-for-linus

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/6054f4ecdc116ce64bd5c50df8edd01d2c105e69

Thank you!

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