Merge 4.4.258 into android-4.4-p

Changes in 4.4.258
	tracing: Do not count ftrace events in top level enable output
	fgraph: Initialize tracing_graph_pause at task creation
	af_key: relax availability checks for skb size calculation
	iwlwifi: pcie: add a NULL check in iwl_pcie_txq_unmap
	iwlwifi: mvm: guard against device removal in reprobe
	SUNRPC: Move simple_get_bytes and simple_get_netobj into private header
	SUNRPC: Handle 0 length opaque XDR object data properly
	lib/string: Add strscpy_pad() function
	include/trace/events/writeback.h: fix -Wstringop-truncation warnings
	memcg: fix a crash in wb_workfn when a device disappears
	squashfs: add more sanity checks in id lookup
	squashfs: add more sanity checks in inode lookup
	squashfs: add more sanity checks in xattr id lookup
	memblock: do not start bottom-up allocations with kernel_end
	netfilter: xt_recent: Fix attempt to update deleted entry
	h8300: fix PREEMPTION build, TI_PRE_COUNT undefined
	usb: dwc3: ulpi: fix checkpatch warning
	usb: dwc3: ulpi: Replace CPU-based busyloop with Protocol-based one
	net: watchdog: hold device global xmit lock during tx disable
	vsock: fix locking in vsock_shutdown()
	x86/build: Disable CET instrumentation in the kernel for 32-bit too
	trace: Use -mcount-record for dynamic ftrace
	tracing: Fix SKIP_STACK_VALIDATION=1 build due to bad merge with -mrecord-mcount
	tracing: Avoid calling cc-option -mrecord-mcount for every Makefile
	Xen/x86: don't bail early from clear_foreign_p2m_mapping()
	Xen/x86: also check kernel mapping in set_foreign_p2m_mapping()
	Xen/gntdev: correct dev_bus_addr handling in gntdev_map_grant_pages()
	Xen/gntdev: correct error checking in gntdev_map_grant_pages()
	xen/arm: don't ignore return errors from set_phys_to_machine
	xen-blkback: don't "handle" error by BUG()
	xen-netback: don't "handle" error by BUG()
	xen-scsiback: don't "handle" error by BUG()
	xen-blkback: fix error handling in xen_blkbk_map()
	scsi: qla2xxx: Fix crash during driver load on big endian machines
	kvm: check tlbs_dirty directly
	Linux 4.4.258

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie1125773ccbc457f93c639c420dedf2c38a5e65a

5 files changed, 20 insertions, 3 deletions

diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 361274ce5815..883ce03191e7 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -12,6 +12,7 @@
 #include <linux/fs.h>
 #include <linux/sched.h>
 #include <linux/blkdev.h>
+#include <linux/device.h>
 #include <linux/writeback.h>
 #include <linux/blk-cgroup.h>
 #include <linux/backing-dev-defs.h>
@@ -518,4 +519,13 @@ static inline int bdi_rw_congested(struct backing_dev_info *bdi)
 				  (1 << WB_async_congested));
 }
 
+extern const char *bdi_unknown_name;
+
+static inline const char *bdi_dev_name(struct backing_dev_info *bdi)
+{
+	if (!bdi || !bdi->dev)
+		return bdi_unknown_name;
+	return dev_name(bdi->dev);
+}
+
 #endif	/* _LINUX_BACKING_DEV_H */
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 312a4ef093e3..a85d7b71e329 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -748,7 +748,9 @@ typedef int (*trace_func_graph_ent_t)(struct ftrace_graph_ent *); /* entry */
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 
 /* for init task */
-#define INIT_FTRACE_GRAPH		.ret_stack = NULL,
+#define INIT_FTRACE_GRAPH				\
+	.ret_stack		= NULL,			\
+	.tracing_graph_pause	= ATOMIC_INIT(0),
 
 /*
  * Stack of return addresses for functions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index c1a42027ee0e..401a404b64b9 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3428,6 +3428,7 @@ static inline void netif_tx_disable(struct net_device *dev)
 
 	local_bh_disable();
 	cpu = smp_processor_id();
+	spin_lock(&dev->tx_global_lock);
 	for (i = 0; i < dev->num_tx_queues; i++) {
 		struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
 
@@ -3435,6 +3436,7 @@ static inline void netif_tx_disable(struct net_device *dev)
 		netif_tx_stop_queue(txq);
 		__netif_tx_unlock(txq);
 	}
+	spin_unlock(&dev->tx_global_lock);
 	local_bh_enable();
 }
 
diff --git a/include/linux/string.h b/include/linux/string.h
index 870268d42ae7..7da409760cf1 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -28,6 +28,10 @@ size_t strlcpy(char *, const char *, size_t);
 #ifndef __HAVE_ARCH_STRSCPY
 ssize_t strscpy(char *, const char *, size_t);
 #endif
+
+/* Wraps calls to strscpy()/memset(), no arch specific code required */
+ssize_t strscpy_pad(char *dest, const char *src, size_t count);
+
 #ifndef __HAVE_ARCH_STRCAT
 extern char * strcat(char *, const char *);
 #endif
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 70c6b92e15a7..8def5e0a491f 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -23,8 +23,7 @@
 #define XDR_QUADLEN(l)		(((l) + 3) >> 2)
 
 /*
- * Generic opaque `network object.' At the kernel level, this type
- * is used only by lockd.
+ * Generic opaque `network object.'
  */
 #define XDR_MAX_NETOBJ		1024
 struct xdr_netobj {