Merge android-4.4.129 (b1c4836) into msm-4.4

* refs/heads/tmp-b1c4836
  Linux 4.4.129
  writeback: safer lock nesting
  fanotify: fix logic of events on child
  ext4: bugfix for mmaped pages in mpage_release_unused_pages()
  mm/filemap.c: fix NULL pointer in page_cache_tree_insert()
  mm: allow GFP_{FS,IO} for page_cache_read page cache allocation
  autofs: mount point create should honour passed in mode
  Don't leak MNT_INTERNAL away from internal mounts
  rpc_pipefs: fix double-dput()
  hypfs_kill_super(): deal with failed allocations
  jffs2_kill_sb(): deal with failed allocations
  powerpc/lib: Fix off-by-one in alternate feature patching
  powerpc/eeh: Fix enabling bridge MMIO windows
  MIPS: memset.S: Fix clobber of v1 in last_fixup
  MIPS: memset.S: Fix return of __clear_user from Lpartial_fixup
  MIPS: memset.S: EVA & fault support for small_memset
  MIPS: uaccess: Add micromips clobbers to bzero invocation
  HID: hidraw: Fix crash on HIDIOCGFEATURE with a destroyed device
  ALSA: hda - New VIA controller suppor no-snoop path
  ALSA: rawmidi: Fix missing input substream checks in compat ioctls
  ALSA: line6: Use correct endpoint type for midi output
  ext4: fix deadlock between inline_data and ext4_expand_extra_isize_ea()
  ext4: fix crashes in dioread_nolock mode
  drm/radeon: Fix PCIe lane width calculation
  ext4: don't allow r/w mounts if metadata blocks overlap the superblock
  vfio/pci: Virtualize Maximum Read Request Size
  vfio/pci: Virtualize Maximum Payload Size
  vfio-pci: Virtualize PCIe & AF FLR
  ALSA: pcm: Fix endless loop for XRUN recovery in OSS emulation
  ALSA: pcm: Fix mutex unbalance in OSS emulation ioctls
  ALSA: pcm: Return -EBUSY for OSS ioctls changing busy streams
  ALSA: pcm: Avoid potential races between OSS ioctls and read/write
  ALSA: pcm: Use ERESTARTSYS instead of EINTR in OSS emulation
  ALSA: oss: consolidate kmalloc/memset 0 call to kzalloc
  watchdog: f71808e_wdt: Fix WD_EN register read
  thermal: imx: Fix race condition in imx_thermal_probe()
  clk: bcm2835: De-assert/assert PLL reset signal when appropriate
  clk: mvebu: armada-38x: add support for missing clocks
  clk: mvebu: armada-38x: add support for 1866MHz variants
  mmc: jz4740: Fix race condition in IRQ mask update
  iommu/vt-d: Fix a potential memory leak
  um: Use POSIX ucontext_t instead of struct ucontext
  dmaengine: at_xdmac: fix rare residue corruption
  IB/srp: Fix completion vector assignment algorithm
  IB/srp: Fix srp_abort()
  ALSA: pcm: Fix UAF at PCM release via PCM timer access
  RDMA/ucma: Don't allow setting RDMA_OPTION_IB_PATH without an RDMA device
  ext4: fail ext4_iget for root directory if unallocated
  ext4: don't update checksum of new initialized bitmaps
  jbd2: if the journal is aborted then don't allow update of the log tail
  random: use a tighter cap in credit_entropy_bits_safe()
  thunderbolt: Resume control channel after hibernation image is created
  ASoC: ssm2602: Replace reg_default_raw with reg_default
  HID: core: Fix size as type u32
  HID: Fix hid_report_len usage
  powerpc/powernv: Fix OPAL NVRAM driver OPAL_BUSY loops
  powerpc/powernv: define a standard delay for OPAL_BUSY type retry loops
  powerpc/64: Fix smp_wmb barrier definition use use lwsync consistently
  powerpc/powernv: Handle unknown OPAL errors in opal_nvram_write()
  HID: i2c-hid: fix size check and type usage
  usb: dwc3: pci: Properly cleanup resource
  USB:fix USB3 devices behind USB3 hubs not resuming at hibernate thaw
  ACPI / hotplug / PCI: Check presence of slot itself in get_slot_status()
  ACPI / video: Add quirk to force acpi-video backlight on Samsung 670Z5E
  regmap: Fix reversed bounds check in regmap_raw_write()
  xen-netfront: Fix hang on device removal
  ARM: dts: at91: sama5d4: fix pinctrl compatible string
  ARM: dts: at91: at91sam9g25: fix mux-mask pinctrl property
  usb: musb: gadget: misplaced out of bounds check
  mm, slab: reschedule cache_reap() on the same CPU
  ipc/shm: fix use-after-free of shm file via remap_file_pages()
  resource: fix integer overflow at reallocation
  fs/reiserfs/journal.c: add missing resierfs_warning() arg
  ubi: Reject MLC NAND
  ubi: Fix error for write access
  ubi: fastmap: Don't flush fastmap work on detach
  ubifs: Check ubifs_wbuf_sync() return code
  tty: make n_tty_read() always abort if hangup is in progress
  x86/hweight: Don't clobber %rdi
  x86/hweight: Get rid of the special calling convention
  lan78xx: Correctly indicate invalid OTP
  slip: Check if rstate is initialized before uncompressing
  cdc_ether: flag the Cinterion AHS8 modem by gemalto as WWAN
  hwmon: (ina2xx) Fix access to uninitialized mutex
  rtl8187: Fix NULL pointer dereference in priv->conf_mutex
  getname_kernel() needs to make sure that ->name != ->iname in long case
  s390/ipl: ensure loadparm valid flag is set
  s390/qdio: don't merge ERROR output buffers
  s390/qdio: don't retry EQBS after CCQ 96
  block/loop: fix deadlock after loop_set_status
  Revert "perf tests: Decompress kernel module before objdump"
  radeon: hide pointless #warning when compile testing
  perf intel-pt: Fix timestamp following overflow
  perf intel-pt: Fix error recovery from missing TIP packet
  perf intel-pt: Fix sync_switch
  perf intel-pt: Fix overlap detection to identify consecutive buffers correctly
  parisc: Fix out of array access in match_pci_device()
  media: v4l2-compat-ioctl32: don't oops on overlay
  f2fs: check cap_resource only for data blocks
  Revert "f2fs: introduce f2fs_set_page_dirty_nobuffer"
  f2fs: clear PageError on writepage
  UPSTREAM: timer: Export destroy_hrtimer_on_stack()
  BACKPORT: dm verity: add 'check_at_most_once' option to only validate hashes once
  f2fs: call unlock_new_inode() before d_instantiate()
  f2fs: refactor read path to allow multiple postprocessing steps
  fscrypt: allow synchronous bio decryption

Change-Id: I45f4ac10734d92023b53118d83dcd6c83974a283
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>

1 files changed, 29 insertions, 8 deletions

diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index 89927b5beebf..3693cb26ec66 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -125,6 +125,7 @@ struct intel_pt_queue {
 	bool stop;
 	bool step_through_buffers;
 	bool use_buffer_pid_tid;
+	bool sync_switch;
 	pid_t pid, tid;
 	int cpu;
 	int switch_state;
@@ -188,14 +189,17 @@ static void intel_pt_dump_event(struct intel_pt *pt, unsigned char *buf,
 static int intel_pt_do_fix_overlap(struct intel_pt *pt, struct auxtrace_buffer *a,
 				   struct auxtrace_buffer *b)
 {
+	bool consecutive = false;
 	void *start;
 
 	start = intel_pt_find_overlap(a->data, a->size, b->data, b->size,
-				      pt->have_tsc);
+				      pt->have_tsc, &consecutive);
 	if (!start)
 		return -EINVAL;
 	b->use_size = b->data + b->size - start;
 	b->use_data = start;
+	if (b->use_size && consecutive)
+		b->consecutive = true;
 	return 0;
 }
 
@@ -849,10 +853,12 @@ static int intel_pt_setup_queue(struct intel_pt *pt,
 			if (pt->timeless_decoding || !pt->have_sched_switch)
 				ptq->use_buffer_pid_tid = true;
 		}
+
+		ptq->sync_switch = pt->sync_switch;
 	}
 
 	if (!ptq->on_heap &&
-	    (!pt->sync_switch ||
+	    (!ptq->sync_switch ||
 	     ptq->switch_state != INTEL_PT_SS_EXPECTING_SWITCH_EVENT)) {
 		const struct intel_pt_state *state;
 		int ret;
@@ -1235,7 +1241,7 @@ static int intel_pt_sample(struct intel_pt_queue *ptq)
 	if (pt->synth_opts.last_branch)
 		intel_pt_update_last_branch_rb(ptq);
 
-	if (!pt->sync_switch)
+	if (!ptq->sync_switch)
 		return 0;
 
 	if (intel_pt_is_switch_ip(ptq, state->to_ip)) {
@@ -1316,6 +1322,21 @@ static u64 intel_pt_switch_ip(struct intel_pt *pt, u64 *ptss_ip)
 	return switch_ip;
 }
 
+static void intel_pt_enable_sync_switch(struct intel_pt *pt)
+{
+	unsigned int i;
+
+	pt->sync_switch = true;
+
+	for (i = 0; i < pt->queues.nr_queues; i++) {
+		struct auxtrace_queue *queue = &pt->queues.queue_array[i];
+		struct intel_pt_queue *ptq = queue->priv;
+
+		if (ptq)
+			ptq->sync_switch = true;
+	}
+}
+
 static int intel_pt_run_decoder(struct intel_pt_queue *ptq, u64 *timestamp)
 {
 	const struct intel_pt_state *state = ptq->state;
@@ -1332,7 +1353,7 @@ static int intel_pt_run_decoder(struct intel_pt_queue *ptq, u64 *timestamp)
 			if (pt->switch_ip) {
 				intel_pt_log("switch_ip: %"PRIx64" ptss_ip: %"PRIx64"\n",
 					     pt->switch_ip, pt->ptss_ip);
-				pt->sync_switch = true;
+				intel_pt_enable_sync_switch(pt);
 			}
 		}
 	}
@@ -1348,9 +1369,9 @@ static int intel_pt_run_decoder(struct intel_pt_queue *ptq, u64 *timestamp)
 		if (state->err) {
 			if (state->err == INTEL_PT_ERR_NODATA)
 				return 1;
-			if (pt->sync_switch &&
+			if (ptq->sync_switch &&
 			    state->from_ip >= pt->kernel_start) {
-				pt->sync_switch = false;
+				ptq->sync_switch = false;
 				intel_pt_next_tid(pt, ptq);
 			}
 			if (pt->synth_opts.errors) {
@@ -1376,7 +1397,7 @@ static int intel_pt_run_decoder(struct intel_pt_queue *ptq, u64 *timestamp)
 				     state->timestamp, state->est_timestamp);
 			ptq->timestamp = state->est_timestamp;
 		/* Use estimated TSC in unknown switch state */
-		} else if (pt->sync_switch &&
+		} else if (ptq->sync_switch &&
 			   ptq->switch_state == INTEL_PT_SS_UNKNOWN &&
 			   intel_pt_is_switch_ip(ptq, state->to_ip) &&
 			   ptq->next_tid == -1) {
@@ -1523,7 +1544,7 @@ static int intel_pt_sync_switch(struct intel_pt *pt, int cpu, pid_t tid,
 		return 1;
 
 	ptq = intel_pt_cpu_to_ptq(pt, cpu);
-	if (!ptq)
+	if (!ptq || !ptq->sync_switch)
 		return 1;
 
 	switch (ptq->switch_state) {