Merge android-4.4.157 (c139ea66) into msm-4.4

* refs/heads/tmp-c139ea66
  Linux 4.4.157
  mm: get rid of vmacache_flush_all() entirely
  x86/speculation/l1tf: Increase l1tf memory limit for Nehalem+
  autofs: fix autofs_sbi() does not check super block type
  mtd: ubi: wl: Fix error return code in ubi_wl_init()
  crypto: vmx - Fix sleep-in-atomic bugs
  ethernet: ti: davinci_emac: add missing of_node_put after calling of_parse_phandle
  net: ethernet: ti: cpsw: fix mdio device reference leak
  drivers: net: cpsw: fix parsing of phy-handle DT property in dual_emac config
  netfilter: x_tables: avoid stack-out-of-bounds read in xt_copy_counters_from_user
  vmw_balloon: include asm/io.h
  xhci: Fix use-after-free in xhci_free_virt_device
  RDMA/cma: Do not ignore net namespace for unbound cm_id
  MIPS: WARN_ON invalid DMA cache maintenance, not BUG_ON
  f2fs: fix to do sanity check with {sit,nat}_ver_bitmap_bytesize
  mfd: ti_am335x_tscadc: Fix struct clk memory leak
  iommu/ipmmu-vmsa: Fix allocation in atomic context
  partitions/aix: fix usage of uninitialized lv_info and lvname structures
  partitions/aix: append null character to print data from disk
  Input: atmel_mxt_ts - only use first T9 instance
  net: dcb: For wild-card lookups, use priority -1, not 0
  MIPS: Octeon: add missing of_node_put()
  net: mvneta: fix mtu change on port without link
  gpio: ml-ioh: Fix buffer underwrite on probe error path
  x86/mm: Remove in_nmi() warning from vmalloc_fault()
  Bluetooth: hidp: Fix handling of strncpy for hid->name information
  ath10k: disable bundle mgmt tx completion event support
  scsi: 3ware: fix return 0 on the error path of probe
  ata: libahci: Correct setting of DEVSLP register
  MIPS: Fix ISA virt/bus conversion for non-zero PHYS_OFFSET
  ath10k: prevent active scans on potential unusable channels
  macintosh/via-pmu: Add missing mmio accessors
  NFSv4.0 fix client reference leak in callback
  perf tools: Allow overriding MAX_NR_CPUS at compile time
  f2fs: do not set free of current section
  tty: rocket: Fix possible buffer overwrite on register_PCI
  uio: potential double frees if __uio_register_device() fails
  misc: ti-st: Fix memory leak in the error path of probe()
  md/raid5: fix data corruption of replacements after originals dropped
  scsi: target: fix __transport_register_session locking
  gpio: tegra: Move driver registration to subsys_init level
  Bluetooth: h5: Fix missing dependency on BT_HCIUART_SERDEV
  ethtool: Remove trailing semicolon for static inline
  misc: mic: SCIF Fix scif_get_new_port() error handling
  ARC: [plat-axs*]: Enable SWAP
  locking/osq_lock: Fix osq_lock queue corruption
  selinux: use GFP_NOWAIT in the AVC kmem_caches
  locking/rwsem-xadd: Fix missed wakeup due to reordering of load
  block,blkcg: use __GFP_NOWARN for best-effort allocations in blkcg
  staging/rts5208: Fix read overflow in memcpy
  staging: rt5208: Fix a sleep-in-atomic bug in xd_copy_page
  kthread: fix boot hang (regression) on MIPS/OpenRISC
  kthread: Fix use-after-free if kthread fork fails
  cfq: Give a chance for arming slice idle timer in case of group_idle
  ALSA: hda - Fix cancel_work_sync() stall from jackpoll work
  i2c: i801: fix DNV's SMBCTRL register offset
  i2c: xiic: Make the start and the byte count write atomic

Conflicts:
	block/blk-cgroup.c
	drivers/net/wireless/ath/ath10k/wmi-tlv.c
	kernel/locking/rwsem-xadd.c

Change-Id: If6c24e0c16e173dc2a22e047200bbd7a4f11f713
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>

4 files changed, 2 insertions, 8 deletions

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index fe0a5de1eda5..29c17fae9bbf 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -404,7 +404,7 @@ struct kioctx_table;
 struct mm_struct {
 	struct vm_area_struct *mmap;		/* list of VMAs */
 	struct rb_root mm_rb;
-	u32 vmacache_seqnum;                   /* per-thread vmacache */
+	u64 vmacache_seqnum;                   /* per-thread vmacache */
 #ifdef CONFIG_MMU
 	unsigned long (*get_unmapped_area) (struct file *filp,
 				unsigned long addr, unsigned long len,
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5fe8c3dfd60f..8f6894c6e83c 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1726,7 +1726,7 @@ struct task_struct {
 
 	struct mm_struct *mm, *active_mm;
 	/* per-thread vma caching */
-	u32 vmacache_seqnum;
+	u64 vmacache_seqnum;
 	struct vm_area_struct *vmacache[VMACACHE_SIZE];
 #if defined(SPLIT_RSS_COUNTING)
 	struct task_rss_stat	rss_stat;
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 056b4e5830a6..d31afe5d790d 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -89,7 +89,6 @@ enum vm_event_item { PGPGIN, PGPGOUT, PGPGOUTCLEAN, PSWPIN, PSWPOUT,
 #ifdef CONFIG_DEBUG_VM_VMACACHE
 		VMACACHE_FIND_CALLS,
 		VMACACHE_FIND_HITS,
-		VMACACHE_FULL_FLUSHES,
 #endif
 		NR_VM_EVENT_ITEMS
 };
diff --git a/include/linux/vmacache.h b/include/linux/vmacache.h
index c3fa0fd43949..4f58ff2dacd6 100644
--- a/include/linux/vmacache.h
+++ b/include/linux/vmacache.h
@@ -15,7 +15,6 @@ static inline void vmacache_flush(struct task_struct *tsk)
 	memset(tsk->vmacache, 0, sizeof(tsk->vmacache));
 }
 
-extern void vmacache_flush_all(struct mm_struct *mm);
 extern void vmacache_update(unsigned long addr, struct vm_area_struct *newvma);
 extern struct vm_area_struct *vmacache_find(struct mm_struct *mm,
 						    unsigned long addr);
@@ -29,10 +28,6 @@ extern struct vm_area_struct *vmacache_find_exact(struct mm_struct *mm,
 static inline void vmacache_invalidate(struct mm_struct *mm)
 {
 	mm->vmacache_seqnum++;
-
-	/* deal with overflows */
-	if (unlikely(mm->vmacache_seqnum == 0))
-		vmacache_flush_all(mm);
 }
 
 #endif /* __LINUX_VMACACHE_H */