[gentoo-commits] proj/linux-patches:3.10 commit in: /

[Mike Pagano]

commit:     fdca1444333f450d874582ba2ad6532254eb6d4d
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Fri Oct 31 11:18:46 2014 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Fri Oct 31 11:18:46 2014 +0000
URL:        http://sources.gentoo.org/gitweb/?p=proj/linux-patches.git;a=commit;h=fdca1444

Linux patch 3.10.59

---
 0000_README              |    4 +
 1058_linux-3.10.59.patch | 1369 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 1373 insertions(+)

diff --git a/0000_README b/0000_README
index fb459eb..580573b 100644
--- a/0000_README
+++ b/0000_README
@@ -274,6 +274,10 @@ Patch:  1057_linux-3.10.58.patch
 From:   http://www.kernel.org
 Desc:   Linux 3.10.58
 
+Patch:  1058_linux-3.10.59.patch
+From:   http://www.kernel.org
+Desc:   Linux 3.10.59
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.

diff --git a/1058_linux-3.10.59.patch b/1058_linux-3.10.59.patch
new file mode 100644
index 0000000..8bddbfc
--- /dev/null
+++ b/1058_linux-3.10.59.patch
@@ -0,0 +1,1369 @@
+diff --git a/Documentation/lzo.txt b/Documentation/lzo.txt
+new file mode 100644
+index 000000000000..ea45dd3901e3
+--- /dev/null
++++ b/Documentation/lzo.txt
+@@ -0,0 +1,164 @@
++
++LZO stream format as understood by Linux's LZO decompressor
++===========================================================
++
++Introduction
++
++  This is not a specification. No specification seems to be publicly available
++  for the LZO stream format. This document describes what input format the LZO
++  decompressor as implemented in the Linux kernel understands. The file subject
++  of this analysis is lib/lzo/lzo1x_decompress_safe.c. No analysis was made on
++  the compressor nor on any other implementations though it seems likely that
++  the format matches the standard one. The purpose of this document is to
++  better understand what the code does in order to propose more efficient fixes
++  for future bug reports.
++
++Description
++
++  The stream is composed of a series of instructions, operands, and data. The
++  instructions consist in a few bits representing an opcode, and bits forming
++  the operands for the instruction, whose size and position depend on the
++  opcode and on the number of literals copied by previous instruction. The
++  operands are used to indicate :
++
++    - a distance when copying data from the dictionary (past output buffer)
++    - a length (number of bytes to copy from dictionary)
++    - the number of literals to copy, which is retained in variable "state"
++      as a piece of information for next instructions.
++
++  Optionally depending on the opcode and operands, extra data may follow. These
++  extra data can be a complement for the operand (eg: a length or a distance
++  encoded on larger values), or a literal to be copied to the output buffer.
++
++  The first byte of the block follows a different encoding from other bytes, it
++  seems to be optimized for literal use only, since there is no dictionary yet
++  prior to that byte.
++
++  Lengths are always encoded on a variable size starting with a small number
++  of bits in the operand. If the number of bits isn't enough to represent the
++  length, up to 255 may be added in increments by consuming more bytes with a
++  rate of at most 255 per extra byte (thus the compression ratio cannot exceed
++  around 255:1). The variable length encoding using #bits is always the same :
++
++       length = byte & ((1 << #bits) - 1)
++       if (!length) {
++               length = ((1 << #bits) - 1)
++               length += 255*(number of zero bytes)
++               length += first-non-zero-byte
++       }
++       length += constant (generally 2 or 3)
++
++  For references to the dictionary, distances are relative to the output
++  pointer. Distances are encoded using very few bits belonging to certain
++  ranges, resulting in multiple copy instructions using different encodings.
++  Certain encodings involve one extra byte, others involve two extra bytes
++  forming a little-endian 16-bit quantity (marked LE16 below).
++
++  After any instruction except the large literal copy, 0, 1, 2 or 3 literals
++  are copied before starting the next instruction. The number of literals that
++  were copied may change the meaning and behaviour of the next instruction. In
++  practice, only one instruction needs to know whether 0, less than 4, or more
++  literals were copied. This is the information stored in the <state> variable
++  in this implementation. This number of immediate literals to be copied is
++  generally encoded in the last two bits of the instruction but may also be
++  taken from the last two bits of an extra operand (eg: distance).
++
++  End of stream is declared when a block copy of distance 0 is seen. Only one
++  instruction may encode this distance (0001HLLL), it takes one LE16 operand
++  for the distance, thus requiring 3 bytes.
++
++  IMPORTANT NOTE : in the code some length checks are missing because certain
++  instructions are called under the assumption that a certain number of bytes
++  follow because it has already been garanteed before parsing the instructions.
++  They just have to "refill" this credit if they consume extra bytes. This is
++  an implementation design choice independant on the algorithm or encoding.
++
++Byte sequences
++
++  First byte encoding :
++
++      0..17   : follow regular instruction encoding, see below. It is worth
++                noting that codes 16 and 17 will represent a block copy from
++                the dictionary which is empty, and that they will always be
++                invalid at this place.
++
++      18..21  : copy 0..3 literals
++                state = (byte - 17) = 0..3  [ copy <state> literals ]
++                skip byte
++
++      22..255 : copy literal string
++                length = (byte - 17) = 4..238
++                state = 4 [ don't copy extra literals ]
++                skip byte
++
++  Instruction encoding :
++
++      0 0 0 0 X X X X  (0..15)
++        Depends on the number of literals copied by the last instruction.
++        If last instruction did not copy any literal (state == 0), this
++        encoding will be a copy of 4 or more literal, and must be interpreted
++        like this :
++
++           0 0 0 0 L L L L  (0..15)  : copy long literal string
++           length = 3 + (L ?: 15 + (zero_bytes * 255) + non_zero_byte)
++           state = 4  (no extra literals are copied)
++
++        If last instruction used to copy between 1 to 3 literals (encoded in
++        the instruction's opcode or distance), the instruction is a copy of a
++        2-byte block from the dictionary within a 1kB distance. It is worth
++        noting that this instruction provides little savings since it uses 2
++        bytes to encode a copy of 2 other bytes but it encodes the number of
++        following literals for free. It must be interpreted like this :
++
++           0 0 0 0 D D S S  (0..15)  : copy 2 bytes from <= 1kB distance
++           length = 2
++           state = S (copy S literals after this block)
++         Always followed by exactly one byte : H H H H H H H H
++           distance = (H << 2) + D + 1
++
++        If last instruction used to copy 4 or more literals (as detected by
++        state == 4), the instruction becomes a copy of a 3-byte block from the
++        dictionary from a 2..3kB distance, and must be interpreted like this :
++
++           0 0 0 0 D D S S  (0..15)  : copy 3 bytes from 2..3 kB distance
++           length = 3
++           state = S (copy S literals after this block)
++         Always followed by exactly one byte : H H H H H H H H
++           distance = (H << 2) + D + 2049
++
++      0 0 0 1 H L L L  (16..31)
++           Copy of a block within 16..48kB distance (preferably less than 10B)
++           length = 2 + (L ?: 7 + (zero_bytes * 255) + non_zero_byte)
++        Always followed by exactly one LE16 :  D D D D D D D D : D D D D D D S S
++           distance = 16384 + (H << 14) + D
++           state = S (copy S literals after this block)
++           End of stream is reached if distance == 16384
++
++      0 0 1 L L L L L  (32..63)
++           Copy of small block within 16kB distance (preferably less than 34B)
++           length = 2 + (L ?: 31 + (zero_bytes * 255) + non_zero_byte)
++        Always followed by exactly one LE16 :  D D D D D D D D : D D D D D D S S
++           distance = D + 1
++           state = S (copy S literals after this block)
++
++      0 1 L D D D S S  (64..127)
++           Copy 3-4 bytes from block within 2kB distance
++           state = S (copy S literals after this block)
++           length = 3 + L
++         Always followed by exactly one byte : H H H H H H H H
++           distance = (H << 3) + D + 1
++
++      1 L L D D D S S  (128..255)
++           Copy 5-8 bytes from block within 2kB distance
++           state = S (copy S literals after this block)
++           length = 5 + L
++         Always followed by exactly one byte : H H H H H H H H
++           distance = (H << 3) + D + 1
++
++Authors
++
++  This document was written by Willy Tarreau <w@×××.eu> on 2014/07/19 during an
++  analysis of the decompression code available in Linux 3.16-rc5. The code is
++  tricky, it is possible that this document contains mistakes or that a few
++  corner cases were overlooked. In any case, please report any doubt, fix, or
++  proposed updates to the author(s) so that the document can be updated.
+diff --git a/Makefile b/Makefile
+index c27454b8ca3e..7baf27f5cf0f 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 3
+ PATCHLEVEL = 10
+-SUBLEVEL = 58
++SUBLEVEL = 59
+ EXTRAVERSION =
+ NAME = TOSSUG Baby Fish
+ 
+diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c
+index da841885d01c..64f9f1045539 100644
+--- a/arch/arm/mach-at91/clock.c
++++ b/arch/arm/mach-at91/clock.c
+@@ -947,6 +947,7 @@ static int __init at91_clock_reset(void)
+ 	}
+ 
+ 	at91_pmc_write(AT91_PMC_SCDR, scdr);
++	at91_pmc_write(AT91_PMC_PCDR, pcdr);
+ 	if (cpu_is_sama5d3())
+ 		at91_pmc_write(AT91_PMC_PCDR1, pcdr1);
+ 
+diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
+index 899af807ef0f..c30a548cee56 100644
+--- a/arch/arm64/include/asm/compat.h
++++ b/arch/arm64/include/asm/compat.h
+@@ -33,8 +33,8 @@ typedef s32		compat_ssize_t;
+ typedef s32		compat_time_t;
+ typedef s32		compat_clock_t;
+ typedef s32		compat_pid_t;
+-typedef u32		__compat_uid_t;
+-typedef u32		__compat_gid_t;
++typedef u16		__compat_uid_t;
++typedef u16		__compat_gid_t;
+ typedef u16		__compat_uid16_t;
+ typedef u16		__compat_gid16_t;
+ typedef u32		__compat_uid32_t;
+diff --git a/arch/m68k/mm/hwtest.c b/arch/m68k/mm/hwtest.c
+index 2c7dde3c6430..2a5259fd23eb 100644
+--- a/arch/m68k/mm/hwtest.c
++++ b/arch/m68k/mm/hwtest.c
+@@ -28,9 +28,11 @@
+ int hwreg_present( volatile void *regp )
+ {
+     int	ret = 0;
++    unsigned long flags;
+     long	save_sp, save_vbr;
+     long	tmp_vectors[3];
+ 
++    local_irq_save(flags);
+     __asm__ __volatile__
+ 	(	"movec	%/vbr,%2\n\t"
+ 		"movel	#Lberr1,%4@(8)\n\t"
+@@ -46,6 +48,7 @@ int hwreg_present( volatile void *regp )
+ 		: "=&d" (ret), "=&r" (save_sp), "=&r" (save_vbr)
+ 		: "a" (regp), "a" (tmp_vectors)
+                 );
++    local_irq_restore(flags);
+ 
+     return( ret );
+ }
+@@ -58,9 +61,11 @@ EXPORT_SYMBOL(hwreg_present);
+ int hwreg_write( volatile void *regp, unsigned short val )
+ {
+ 	int		ret;
++	unsigned long flags;
+ 	long	save_sp, save_vbr;
+ 	long	tmp_vectors[3];
+ 
++	local_irq_save(flags);
+ 	__asm__ __volatile__
+ 	(	"movec	%/vbr,%2\n\t"
+ 		"movel	#Lberr2,%4@(8)\n\t"
+@@ -78,6 +83,7 @@ int hwreg_write( volatile void *regp, unsigned short val )
+ 		: "=&d" (ret), "=&r" (save_sp), "=&r" (save_vbr)
+ 		: "a" (regp), "a" (tmp_vectors), "g" (val)
+ 	);
++	local_irq_restore(flags);
+ 
+ 	return( ret );
+ }
+diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
+index 5c948177529e..bc79ab00536f 100644
+--- a/arch/s390/kvm/interrupt.c
++++ b/arch/s390/kvm/interrupt.c
+@@ -71,6 +71,7 @@ static int __interrupt_is_deliverable(struct kvm_vcpu *vcpu,
+ 			return 0;
+ 		if (vcpu->arch.sie_block->gcr[0] & 0x2000ul)
+ 			return 1;
++		return 0;
+ 	case KVM_S390_INT_EMERGENCY:
+ 		if (psw_extint_disabled(vcpu))
+ 			return 0;
+diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
+index f7f20f7fac3c..373058c9b75d 100644
+--- a/arch/x86/include/asm/kvm_host.h
++++ b/arch/x86/include/asm/kvm_host.h
+@@ -463,6 +463,7 @@ struct kvm_vcpu_arch {
+ 	u64 mmio_gva;
+ 	unsigned access;
+ 	gfn_t mmio_gfn;
++	u64 mmio_gen;
+ 
+ 	struct kvm_pmu pmu;
+ 
+diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
+index f187806dfc18..8533e69d2b89 100644
+--- a/arch/x86/kernel/cpu/intel.c
++++ b/arch/x86/kernel/cpu/intel.c
+@@ -154,6 +154,21 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
+ 			setup_clear_cpu_cap(X86_FEATURE_ERMS);
+ 		}
+ 	}
++
++	/*
++	 * Intel Quark Core DevMan_001.pdf section 6.4.11
++	 * "The operating system also is required to invalidate (i.e., flush)
++	 *  the TLB when any changes are made to any of the page table entries.
++	 *  The operating system must reload CR3 to cause the TLB to be flushed"
++	 *
++	 * As a result cpu_has_pge() in arch/x86/include/asm/tlbflush.h should
++	 * be false so that __flush_tlb_all() causes CR3 insted of CR4.PGE
++	 * to be modified
++	 */
++	if (c->x86 == 5 && c->x86_model == 9) {
++		pr_info("Disabling PGE capability bit\n");
++		setup_clear_cpu_cap(X86_FEATURE_PGE);
++	}
+ }
+ 
+ #ifdef CONFIG_X86_32
+diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
+index 711c649f80b7..e14b1f8667bb 100644
+--- a/arch/x86/kvm/mmu.c
++++ b/arch/x86/kvm/mmu.c
+@@ -3072,7 +3072,7 @@ static void mmu_sync_roots(struct kvm_vcpu *vcpu)
+ 	if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
+ 		return;
+ 
+-	vcpu_clear_mmio_info(vcpu, ~0ul);
++	vcpu_clear_mmio_info(vcpu, MMIO_GVA_ANY);
+ 	kvm_mmu_audit(vcpu, AUDIT_PRE_SYNC);
+ 	if (vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL) {
+ 		hpa_t root = vcpu->arch.mmu.root_hpa;
+diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
+index 3186542f2fa3..7626d3efa064 100644
+--- a/arch/x86/kvm/x86.h
++++ b/arch/x86/kvm/x86.h
+@@ -78,15 +78,23 @@ static inline void vcpu_cache_mmio_info(struct kvm_vcpu *vcpu,
+ 	vcpu->arch.mmio_gva = gva & PAGE_MASK;
+ 	vcpu->arch.access = access;
+ 	vcpu->arch.mmio_gfn = gfn;
++	vcpu->arch.mmio_gen = kvm_memslots(vcpu->kvm)->generation;
++}
++
++static inline bool vcpu_match_mmio_gen(struct kvm_vcpu *vcpu)
++{
++	return vcpu->arch.mmio_gen == kvm_memslots(vcpu->kvm)->generation;
+ }
+ 
+ /*
+- * Clear the mmio cache info for the given gva,
+- * specially, if gva is ~0ul, we clear all mmio cache info.
++ * Clear the mmio cache info for the given gva. If gva is MMIO_GVA_ANY, we
++ * clear all mmio cache info.
+  */
++#define MMIO_GVA_ANY (~(gva_t)0)
++
+ static inline void vcpu_clear_mmio_info(struct kvm_vcpu *vcpu, gva_t gva)
+ {
+-	if (gva != (~0ul) && vcpu->arch.mmio_gva != (gva & PAGE_MASK))
++	if (gva != MMIO_GVA_ANY && vcpu->arch.mmio_gva != (gva & PAGE_MASK))
+ 		return;
+ 
+ 	vcpu->arch.mmio_gva = 0;
+@@ -94,7 +102,8 @@ static inline void vcpu_clear_mmio_info(struct kvm_vcpu *vcpu, gva_t gva)
+ 
+ static inline bool vcpu_match_mmio_gva(struct kvm_vcpu *vcpu, unsigned long gva)
+ {
+-	if (vcpu->arch.mmio_gva && vcpu->arch.mmio_gva == (gva & PAGE_MASK))
++	if (vcpu_match_mmio_gen(vcpu) && vcpu->arch.mmio_gva &&
++	      vcpu->arch.mmio_gva == (gva & PAGE_MASK))
+ 		return true;
+ 
+ 	return false;
+@@ -102,7 +111,8 @@ static inline bool vcpu_match_mmio_gva(struct kvm_vcpu *vcpu, unsigned long gva)
+ 
+ static inline bool vcpu_match_mmio_gpa(struct kvm_vcpu *vcpu, gpa_t gpa)
+ {
+-	if (vcpu->arch.mmio_gfn && vcpu->arch.mmio_gfn == gpa >> PAGE_SHIFT)
++	if (vcpu_match_mmio_gen(vcpu) && vcpu->arch.mmio_gfn &&
++	      vcpu->arch.mmio_gfn == gpa >> PAGE_SHIFT)
+ 		return true;
+ 
+ 	return false;
+diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
+index 01e21037d8fe..00a565676583 100644
+--- a/drivers/base/firmware_class.c
++++ b/drivers/base/firmware_class.c
+@@ -1021,6 +1021,9 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
+ 	if (!firmware_p)
+ 		return -EINVAL;
+ 
++	if (!name || name[0] == '\0')
++		return -EINVAL;
++
+ 	ret = _request_firmware_prepare(&fw, name, device);
+ 	if (ret <= 0) /* error or already assigned */
+ 		goto out;
+diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
+index 975719bc3450..b41994fd8460 100644
+--- a/drivers/base/regmap/regmap-debugfs.c
++++ b/drivers/base/regmap/regmap-debugfs.c
+@@ -460,16 +460,20 @@ void regmap_debugfs_init(struct regmap *map, const char *name)
+ {
+ 	struct rb_node *next;
+ 	struct regmap_range_node *range_node;
++	const char *devname = "dummy";
+ 
+ 	INIT_LIST_HEAD(&map->debugfs_off_cache);
+ 	mutex_init(&map->cache_lock);
+ 
++	if (map->dev)
++		devname = dev_name(map->dev);
++
+ 	if (name) {
+ 		map->debugfs_name = kasprintf(GFP_KERNEL, "%s-%s",
+-					      dev_name(map->dev), name);
++					      devname, name);
+ 		name = map->debugfs_name;
+ 	} else {
+-		name = dev_name(map->dev);
++		name = devname;
+ 	}
+ 
+ 	map->debugfs = debugfs_create_dir(name, regmap_debugfs_root);
+diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
+index 4b5cf2e34e9a..6a66f0b7d3d4 100644
+--- a/drivers/base/regmap/regmap.c
++++ b/drivers/base/regmap/regmap.c
+@@ -1177,7 +1177,7 @@ int _regmap_write(struct regmap *map, unsigned int reg,
+ 	}
+ 
+ #ifdef LOG_DEVICE
+-	if (strcmp(dev_name(map->dev), LOG_DEVICE) == 0)
++	if (map->dev && strcmp(dev_name(map->dev), LOG_DEVICE) == 0)
+ 		dev_info(map->dev, "%x <= %x\n", reg, val);
+ #endif
+ 
+@@ -1437,7 +1437,7 @@ static int _regmap_read(struct regmap *map, unsigned int reg,
+ 	ret = map->reg_read(context, reg, val);
+ 	if (ret == 0) {
+ #ifdef LOG_DEVICE
+-		if (strcmp(dev_name(map->dev), LOG_DEVICE) == 0)
++		if (map->dev && strcmp(dev_name(map->dev), LOG_DEVICE) == 0)
+ 			dev_info(map->dev, "%x => %x\n", reg, *val);
+ #endif
+ 
+diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
+index 45aa8e760124..61a8ec4e5f4d 100644
+--- a/drivers/bluetooth/btusb.c
++++ b/drivers/bluetooth/btusb.c
+@@ -302,6 +302,9 @@ static void btusb_intr_complete(struct urb *urb)
+ 			BT_ERR("%s corrupted event packet", hdev->name);
+ 			hdev->stat.err_rx++;
+ 		}
++	} else if (urb->status == -ENOENT) {
++		/* Avoid suspend failed when usb_kill_urb */
++		return;
+ 	}
+ 
+ 	if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
+@@ -390,6 +393,9 @@ static void btusb_bulk_complete(struct urb *urb)
+ 			BT_ERR("%s corrupted ACL packet", hdev->name);
+ 			hdev->stat.err_rx++;
+ 		}
++	} else if (urb->status == -ENOENT) {
++		/* Avoid suspend failed when usb_kill_urb */
++		return;
+ 	}
+ 
+ 	if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
+@@ -484,6 +490,9 @@ static void btusb_isoc_complete(struct urb *urb)
+ 				hdev->stat.err_rx++;
+ 			}
+ 		}
++	} else if (urb->status == -ENOENT) {
++		/* Avoid suspend failed when usb_kill_urb */
++		return;
+ 	}
+ 
+ 	if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
+diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
+index db0be2fb05fe..db35c542eb20 100644
+--- a/drivers/bluetooth/hci_h5.c
++++ b/drivers/bluetooth/hci_h5.c
+@@ -237,7 +237,7 @@ static void h5_pkt_cull(struct h5 *h5)
+ 			break;
+ 
+ 		to_remove--;
+-		seq = (seq - 1) % 8;
++		seq = (seq - 1) & 0x07;
+ 	}
+ 
+ 	if (seq != h5->rx_ack)
+diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
+index 0b122f8c7005..92f34de7aee9 100644
+--- a/drivers/hv/channel.c
++++ b/drivers/hv/channel.c
+@@ -199,8 +199,10 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size,
+ 	ret = vmbus_post_msg(open_msg,
+ 			       sizeof(struct vmbus_channel_open_channel));
+ 
+-	if (ret != 0)
++	if (ret != 0) {
++		err = ret;
+ 		goto error1;
++	}
+ 
+ 	t = wait_for_completion_timeout(&open_info->waitevent, 5*HZ);
+ 	if (t == 0) {
+@@ -392,7 +394,6 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
+ 	u32 next_gpadl_handle;
+ 	unsigned long flags;
+ 	int ret = 0;
+-	int t;
+ 
+ 	next_gpadl_handle = atomic_read(&vmbus_connection.next_gpadl_handle);
+ 	atomic_inc(&vmbus_connection.next_gpadl_handle);
+@@ -439,9 +440,7 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
+ 
+ 		}
+ 	}
+-	t = wait_for_completion_timeout(&msginfo->waitevent, 5*HZ);
+-	BUG_ON(t == 0);
+-
++	wait_for_completion(&msginfo->waitevent);
+ 
+ 	/* At this point, we received the gpadl created msg */
+ 	*gpadl_handle = gpadlmsg->gpadl;
+@@ -464,7 +463,7 @@ int vmbus_teardown_gpadl(struct vmbus_channel *channel, u32 gpadl_handle)
+ 	struct vmbus_channel_gpadl_teardown *msg;
+ 	struct vmbus_channel_msginfo *info;
+ 	unsigned long flags;
+-	int ret, t;
++	int ret;
+ 
+ 	info = kmalloc(sizeof(*info) +
+ 		       sizeof(struct vmbus_channel_gpadl_teardown), GFP_KERNEL);
+@@ -486,11 +485,12 @@ int vmbus_teardown_gpadl(struct vmbus_channel *channel, u32 gpadl_handle)
+ 	ret = vmbus_post_msg(msg,
+ 			       sizeof(struct vmbus_channel_gpadl_teardown));
+ 
+-	BUG_ON(ret != 0);
+-	t = wait_for_completion_timeout(&info->waitevent, 5*HZ);
+-	BUG_ON(t == 0);
++	if (ret)
++		goto post_msg_err;
++
++	wait_for_completion(&info->waitevent);
+ 
+-	/* Received a torndown response */
++post_msg_err:
+ 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
+ 	list_del(&info->msglistentry);
+ 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
+diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
+index b9f5d295cbec..a3b555808768 100644
+--- a/drivers/hv/connection.c
++++ b/drivers/hv/connection.c
+@@ -393,10 +393,21 @@ int vmbus_post_msg(void *buffer, size_t buflen)
+ 	 * insufficient resources. Retry the operation a couple of
+ 	 * times before giving up.
+ 	 */
+-	while (retries < 3) {
+-		ret =  hv_post_message(conn_id, 1, buffer, buflen);
+-		if (ret != HV_STATUS_INSUFFICIENT_BUFFERS)
++	while (retries < 10) {
++		ret = hv_post_message(conn_id, 1, buffer, buflen);
++
++		switch (ret) {
++		case HV_STATUS_INSUFFICIENT_BUFFERS:
++			ret = -ENOMEM;
++		case -ENOMEM:
++			break;
++		case HV_STATUS_SUCCESS:
+ 			return ret;
++		default:
++			pr_err("hv_post_msg() failed; error code:%d\n", ret);
++			return -EINVAL;
++		}
++
+ 		retries++;
+ 		msleep(100);
+ 	}
+diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c
+index 5653e505f91f..424f51d1e2ce 100644
+--- a/drivers/message/fusion/mptspi.c
++++ b/drivers/message/fusion/mptspi.c
+@@ -1422,6 +1422,11 @@ mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+ 		goto out_mptspi_probe;
+         }
+ 
++	/* VMWare emulation doesn't properly implement WRITE_SAME
++	 */
++	if (pdev->subsystem_vendor == 0x15AD)
++		sh->no_write_same = 1;
++
+ 	spin_lock_irqsave(&ioc->FreeQlock, flags);
+ 
+ 	/* Attach the SCSI Host to the IOC structure
+diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c
+index b53e5c3f403b..bb020ad3f76c 100644
+--- a/drivers/net/wireless/iwlwifi/pcie/drv.c
++++ b/drivers/net/wireless/iwlwifi/pcie/drv.c
+@@ -269,6 +269,8 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
+ 	{IWL_PCI_DEVICE(0x08B1, 0x4070, iwl7260_2ac_cfg)},
+ 	{IWL_PCI_DEVICE(0x08B1, 0x4072, iwl7260_2ac_cfg)},
+ 	{IWL_PCI_DEVICE(0x08B1, 0x4170, iwl7260_2ac_cfg)},
++	{IWL_PCI_DEVICE(0x08B1, 0x4C60, iwl7260_2ac_cfg)},
++	{IWL_PCI_DEVICE(0x08B1, 0x4C70, iwl7260_2ac_cfg)},
+ 	{IWL_PCI_DEVICE(0x08B1, 0x4060, iwl7260_2n_cfg)},
+ 	{IWL_PCI_DEVICE(0x08B1, 0x406A, iwl7260_2n_cfg)},
+ 	{IWL_PCI_DEVICE(0x08B1, 0x4160, iwl7260_2n_cfg)},
+@@ -306,6 +308,8 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
+ 	{IWL_PCI_DEVICE(0x08B1, 0xC770, iwl7260_2ac_cfg)},
+ 	{IWL_PCI_DEVICE(0x08B1, 0xC760, iwl7260_2n_cfg)},
+ 	{IWL_PCI_DEVICE(0x08B2, 0xC270, iwl7260_2ac_cfg)},
++	{IWL_PCI_DEVICE(0x08B1, 0xCC70, iwl7260_2ac_cfg)},
++	{IWL_PCI_DEVICE(0x08B1, 0xCC60, iwl7260_2ac_cfg)},
+ 	{IWL_PCI_DEVICE(0x08B2, 0xC272, iwl7260_2ac_cfg)},
+ 	{IWL_PCI_DEVICE(0x08B2, 0xC260, iwl7260_2n_cfg)},
+ 	{IWL_PCI_DEVICE(0x08B2, 0xC26A, iwl7260_n_cfg)},
+diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
+index a7630d5ec892..a629313dd98a 100644
+--- a/drivers/net/wireless/rt2x00/rt2800.h
++++ b/drivers/net/wireless/rt2x00/rt2800.h
+@@ -1920,7 +1920,7 @@ struct mac_iveiv_entry {
+  * 2 - drop tx power by 12dBm,
+  * 3 - increase tx power by 6dBm
+  */
+-#define BBP1_TX_POWER_CTRL		FIELD8(0x07)
++#define BBP1_TX_POWER_CTRL		FIELD8(0x03)
+ #define BBP1_TX_ANTENNA			FIELD8(0x18)
+ 
+ /*
+diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
+index 5b4a9d9cd200..689f3c87ee5c 100644
+--- a/drivers/pci/pci-sysfs.c
++++ b/drivers/pci/pci-sysfs.c
+@@ -175,7 +175,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
+ {
+ 	struct pci_dev *pci_dev = to_pci_dev(dev);
+ 
+-	return sprintf(buf, "pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x\n",
++	return sprintf(buf, "pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02X\n",
+ 		       pci_dev->vendor, pci_dev->device,
+ 		       pci_dev->subsystem_vendor, pci_dev->subsystem_device,
+ 		       (u8)(pci_dev->class >> 16), (u8)(pci_dev->class >> 8),
+diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
+index 4510279e28dc..910339c0791f 100644
+--- a/drivers/pci/quirks.c
++++ b/drivers/pci/quirks.c
+@@ -28,6 +28,7 @@
+ #include <linux/ioport.h>
+ #include <linux/sched.h>
+ #include <linux/ktime.h>
++#include <linux/mm.h>
+ #include <asm/dma.h>	/* isa_dma_bridge_buggy */
+ #include "pci.h"
+ 
+@@ -291,6 +292,25 @@ static void quirk_citrine(struct pci_dev *dev)
+ }
+ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM,	PCI_DEVICE_ID_IBM_CITRINE,	quirk_citrine);
+ 
++/*  On IBM Crocodile ipr SAS adapters, expand BAR to system page size */
++static void quirk_extend_bar_to_page(struct pci_dev *dev)
++{
++	int i;
++
++	for (i = 0; i < PCI_STD_RESOURCE_END; i++) {
++		struct resource *r = &dev->resource[i];
++
++		if (r->flags & IORESOURCE_MEM && resource_size(r) < PAGE_SIZE) {
++			r->end = PAGE_SIZE - 1;
++			r->start = 0;
++			r->flags |= IORESOURCE_UNSET;
++			dev_info(&dev->dev, "expanded BAR %d to page size: %pR\n",
++				 i, r);
++		}
++	}
++}
++DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, 0x034a, quirk_extend_bar_to_page);
++
+ /*
+  *  S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
+  *  If it's needed, re-allocate the region.
+diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
+index 245a9595a93a..ef0a78b0d730 100644
+--- a/drivers/scsi/be2iscsi/be_mgmt.c
++++ b/drivers/scsi/be2iscsi/be_mgmt.c
+@@ -812,17 +812,20 @@ mgmt_static_ip_modify(struct beiscsi_hba *phba,
+ 
+ 	if (ip_action == IP_ACTION_ADD) {
+ 		memcpy(req->ip_params.ip_record.ip_addr.addr, ip_param->value,
+-		       ip_param->len);
++		       sizeof(req->ip_params.ip_record.ip_addr.addr));
+ 
+ 		if (subnet_param)
+ 			memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
+-			       subnet_param->value, subnet_param->len);
++			       subnet_param->value,
++			       sizeof(req->ip_params.ip_record.ip_addr.subnet_mask));
+ 	} else {
+ 		memcpy(req->ip_params.ip_record.ip_addr.addr,
+-		       if_info->ip_addr.addr, ip_param->len);
++		       if_info->ip_addr.addr,
++		       sizeof(req->ip_params.ip_record.ip_addr.addr));
+ 
+ 		memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
+-		       if_info->ip_addr.subnet_mask, ip_param->len);
++		       if_info->ip_addr.subnet_mask,
++		       sizeof(req->ip_params.ip_record.ip_addr.subnet_mask));
+ 	}
+ 
+ 	rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
+@@ -850,7 +853,7 @@ static int mgmt_modify_gateway(struct beiscsi_hba *phba, uint8_t *gt_addr,
+ 	req->action = gtway_action;
+ 	req->ip_addr.ip_type = BE2_IPV4;
+ 
+-	memcpy(req->ip_addr.addr, gt_addr, param_len);
++	memcpy(req->ip_addr.addr, gt_addr, sizeof(req->ip_addr.addr));
+ 
+ 	return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
+ }
+diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
+index f033b191a022..e6884940d107 100644
+--- a/drivers/scsi/qla2xxx/qla_target.c
++++ b/drivers/scsi/qla2xxx/qla_target.c
+@@ -1514,12 +1514,10 @@ static inline void qlt_unmap_sg(struct scsi_qla_host *vha,
+ static int qlt_check_reserve_free_req(struct scsi_qla_host *vha,
+ 	uint32_t req_cnt)
+ {
+-	struct qla_hw_data *ha = vha->hw;
+-	device_reg_t __iomem *reg = ha->iobase;
+ 	uint32_t cnt;
+ 
+ 	if (vha->req->cnt < (req_cnt + 2)) {
+-		cnt = (uint16_t)RD_REG_DWORD(&reg->isp24.req_q_out);
++		cnt = (uint16_t)RD_REG_DWORD(vha->req->req_q_out);
+ 
+ 		ql_dbg(ql_dbg_tgt, vha, 0xe00a,
+ 		    "Request ring circled: cnt=%d, vha->->ring_index=%d, "
+diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
+index b9f0192758d6..0791c92e8c50 100644
+--- a/drivers/spi/spi-dw-mid.c
++++ b/drivers/spi/spi-dw-mid.c
+@@ -89,7 +89,13 @@ err_exit:
+ 
+ static void mid_spi_dma_exit(struct dw_spi *dws)
+ {
++	if (!dws->dma_inited)
++		return;
++
++	dmaengine_terminate_all(dws->txchan);
+ 	dma_release_channel(dws->txchan);
++
++	dmaengine_terminate_all(dws->rxchan);
+ 	dma_release_channel(dws->rxchan);
+ }
+ 
+@@ -136,7 +142,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
+ 	txconf.dst_addr = dws->dma_addr;
+ 	txconf.dst_maxburst = LNW_DMA_MSIZE_16;
+ 	txconf.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+-	txconf.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
++	txconf.dst_addr_width = dws->dma_width;
+ 	txconf.device_fc = false;
+ 
+ 	txchan->device->device_control(txchan, DMA_SLAVE_CONFIG,
+@@ -159,7 +165,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
+ 	rxconf.src_addr = dws->dma_addr;
+ 	rxconf.src_maxburst = LNW_DMA_MSIZE_16;
+ 	rxconf.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+-	rxconf.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
++	rxconf.src_addr_width = dws->dma_width;
+ 	rxconf.device_fc = false;
+ 
+ 	rxchan->device->device_control(rxchan, DMA_SLAVE_CONFIG,
+diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
+index 8fcd2424e7f9..187911fbabce 100644
+--- a/fs/btrfs/inode.c
++++ b/fs/btrfs/inode.c
+@@ -3545,7 +3545,8 @@ noinline int btrfs_update_inode(struct btrfs_trans_handle *trans,
+ 	 * without delay
+ 	 */
+ 	if (!btrfs_is_free_space_inode(inode)
+-	    && root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID) {
++	    && root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID
++	    && !root->fs_info->log_root_recovering) {
+ 		btrfs_update_root_times(trans, root);
+ 
+ 		ret = btrfs_delayed_update_inode(trans, root, inode);
+diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
+index b3896d5f233a..0e7f7765b3bb 100644
+--- a/fs/btrfs/relocation.c
++++ b/fs/btrfs/relocation.c
+@@ -967,8 +967,11 @@ again:
+ 					need_check = false;
+ 					list_add_tail(&edge->list[UPPER],
+ 						      &list);
+-				} else
++				} else {
++					if (upper->checked)
++						need_check = true;
+ 					INIT_LIST_HEAD(&edge->list[UPPER]);
++				}
+ 			} else {
+ 				upper = rb_entry(rb_node, struct backref_node,
+ 						 rb_node);
+diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
+index 0544587d74f4..1f214689fa5e 100644
+--- a/fs/btrfs/transaction.c
++++ b/fs/btrfs/transaction.c
+@@ -524,7 +524,6 @@ int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid)
+ 		if (transid <= root->fs_info->last_trans_committed)
+ 			goto out;
+ 
+-		ret = -EINVAL;
+ 		/* find specified transaction */
+ 		spin_lock(&root->fs_info->trans_lock);
+ 		list_for_each_entry(t, &root->fs_info->trans_list, list) {
+@@ -540,9 +539,16 @@ int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid)
+ 			}
+ 		}
+ 		spin_unlock(&root->fs_info->trans_lock);
+-		/* The specified transaction doesn't exist */
+-		if (!cur_trans)
++
++		/*
++		 * The specified transaction doesn't exist, or we
++		 * raced with btrfs_commit_transaction
++		 */
++		if (!cur_trans) {
++			if (transid > root->fs_info->last_trans_committed)
++				ret = -EINVAL;
+ 			goto out;
++		}
+ 	} else {
+ 		/* find newest transaction that is committing | committed */
+ 		spin_lock(&root->fs_info->trans_lock);
+diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
+index 5eab400e2590..41baf8b5e0eb 100644
+--- a/fs/ecryptfs/inode.c
++++ b/fs/ecryptfs/inode.c
+@@ -1051,7 +1051,7 @@ ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value,
+ 	}
+ 
+ 	rc = vfs_setxattr(lower_dentry, name, value, size, flags);
+-	if (!rc)
++	if (!rc && dentry->d_inode)
+ 		fsstack_copy_attr_all(dentry->d_inode, lower_dentry->d_inode);
+ out:
+ 	return rc;
+diff --git a/fs/namespace.c b/fs/namespace.c
+index 00409add4d96..7f6a9348c589 100644
+--- a/fs/namespace.c
++++ b/fs/namespace.c
+@@ -1274,6 +1274,8 @@ static int do_umount(struct mount *mnt, int flags)
+ 		 * Special case for "unmounting" root ...
+ 		 * we just try to remount it readonly.
+ 		 */
++		if (!capable(CAP_SYS_ADMIN))
++			return -EPERM;
+ 		down_write(&sb->s_umount);
+ 		if (!(sb->s_flags & MS_RDONLY))
+ 			retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
+diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
+index 3fc87b6f9def..69fc437be661 100644
+--- a/fs/nfs/nfs4proc.c
++++ b/fs/nfs/nfs4proc.c
+@@ -6067,7 +6067,7 @@ static int nfs41_proc_async_sequence(struct nfs_client *clp, struct rpc_cred *cr
+ 	int ret = 0;
+ 
+ 	if ((renew_flags & NFS4_RENEW_TIMEOUT) == 0)
+-		return 0;
++		return -EAGAIN;
+ 	task = _nfs41_proc_sequence(clp, cred, false);
+ 	if (IS_ERR(task))
+ 		ret = PTR_ERR(task);
+diff --git a/fs/nfs/nfs4renewd.c b/fs/nfs/nfs4renewd.c
+index 1720d32ffa54..e1ba58c3d1ad 100644
+--- a/fs/nfs/nfs4renewd.c
++++ b/fs/nfs/nfs4renewd.c
+@@ -88,10 +88,18 @@ nfs4_renew_state(struct work_struct *work)
+ 			}
+ 			nfs_expire_all_delegations(clp);
+ 		} else {
++			int ret;
++
+ 			/* Queue an asynchronous RENEW. */
+-			ops->sched_state_renewal(clp, cred, renew_flags);
++			ret = ops->sched_state_renewal(clp, cred, renew_flags);
+ 			put_rpccred(cred);
+-			goto out_exp;
++			switch (ret) {
++			default:
++				goto out_exp;
++			case -EAGAIN:
++			case -ENOMEM:
++				break;
++			}
+ 		}
+ 	} else {
+ 		dprintk("%s: failed to call renewd. Reason: lease not expired \n",
+diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
+index 2c37442ed936..d482b86d0e0b 100644
+--- a/fs/nfs/nfs4state.c
++++ b/fs/nfs/nfs4state.c
+@@ -1699,7 +1699,8 @@ restart:
+ 			if (status < 0) {
+ 				set_bit(ops->owner_flag_bit, &sp->so_flags);
+ 				nfs4_put_state_owner(sp);
+-				return nfs4_recovery_handle_error(clp, status);
++				status = nfs4_recovery_handle_error(clp, status);
++				return (status != 0) ? status : -EAGAIN;
+ 			}
+ 
+ 			nfs4_put_state_owner(sp);
+@@ -1708,7 +1709,7 @@ restart:
+ 		spin_unlock(&clp->cl_lock);
+ 	}
+ 	rcu_read_unlock();
+-	return status;
++	return 0;
+ }
+ 
+ static int nfs4_check_lease(struct nfs_client *clp)
+@@ -1755,7 +1756,6 @@ static int nfs4_handle_reclaim_lease_error(struct nfs_client *clp, int status)
+ 		break;
+ 	case -NFS4ERR_STALE_CLIENTID:
+ 		clear_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
+-		nfs4_state_clear_reclaim_reboot(clp);
+ 		nfs4_state_start_reclaim_reboot(clp);
+ 		break;
+ 	case -NFS4ERR_CLID_INUSE:
+@@ -2174,14 +2174,11 @@ static void nfs4_state_manager(struct nfs_client *clp)
+ 			section = "reclaim reboot";
+ 			status = nfs4_do_reclaim(clp,
+ 				clp->cl_mvops->reboot_recovery_ops);
+-			if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) ||
+-			    test_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state))
+-				continue;
+-			nfs4_state_end_reclaim_reboot(clp);
+-			if (test_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state))
++			if (status == -EAGAIN)
+ 				continue;
+ 			if (status < 0)
+ 				goto out_error;
++			nfs4_state_end_reclaim_reboot(clp);
+ 		}
+ 
+ 		/* Now recover expired state... */
+@@ -2189,9 +2186,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
+ 			section = "reclaim nograce";
+ 			status = nfs4_do_reclaim(clp,
+ 				clp->cl_mvops->nograce_recovery_ops);
+-			if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) ||
+-			    test_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state) ||
+-			    test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state))
++			if (status == -EAGAIN)
+ 				continue;
+ 			if (status < 0)
+ 				goto out_error;
+diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
+index f1680cdbd88b..9be6b4163406 100644
+--- a/fs/notify/fanotify/fanotify_user.c
++++ b/fs/notify/fanotify/fanotify_user.c
+@@ -69,7 +69,7 @@ static int create_fd(struct fsnotify_group *group,
+ 
+ 	pr_debug("%s: group=%p event=%p\n", __func__, group, event);
+ 
+-	client_fd = get_unused_fd();
++	client_fd = get_unused_fd_flags(group->fanotify_data.f_flags);
+ 	if (client_fd < 0)
+ 		return client_fd;
+ 
+diff --git a/include/linux/compiler-gcc5.h b/include/linux/compiler-gcc5.h
+new file mode 100644
+index 000000000000..cdd1cc202d51
+--- /dev/null
++++ b/include/linux/compiler-gcc5.h
+@@ -0,0 +1,66 @@
++#ifndef __LINUX_COMPILER_H
++#error "Please don't include <linux/compiler-gcc5.h> directly, include <linux/compiler.h> instead."
++#endif
++
++#define __used				__attribute__((__used__))
++#define __must_check			__attribute__((warn_unused_result))
++#define __compiler_offsetof(a, b)	__builtin_offsetof(a, b)
++
++/* Mark functions as cold. gcc will assume any path leading to a call
++   to them will be unlikely.  This means a lot of manual unlikely()s
++   are unnecessary now for any paths leading to the usual suspects
++   like BUG(), printk(), panic() etc. [but let's keep them for now for
++   older compilers]
++
++   Early snapshots of gcc 4.3 don't support this and we can't detect this
++   in the preprocessor, but we can live with this because they're unreleased.
++   Maketime probing would be overkill here.
++
++   gcc also has a __attribute__((__hot__)) to move hot functions into
++   a special section, but I don't see any sense in this right now in
++   the kernel context */
++#define __cold			__attribute__((__cold__))
++
++#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
++
++#ifndef __CHECKER__
++# define __compiletime_warning(message) __attribute__((warning(message)))
++# define __compiletime_error(message) __attribute__((error(message)))
++#endif /* __CHECKER__ */
++
++/*
++ * Mark a position in code as unreachable.  This can be used to
++ * suppress control flow warnings after asm blocks that transfer
++ * control elsewhere.
++ *
++ * Early snapshots of gcc 4.5 don't support this and we can't detect
++ * this in the preprocessor, but we can live with this because they're
++ * unreleased.  Really, we need to have autoconf for the kernel.
++ */
++#define unreachable() __builtin_unreachable()
++
++/* Mark a function definition as prohibited from being cloned. */
++#define __noclone	__attribute__((__noclone__))
++
++/*
++ * Tell the optimizer that something else uses this function or variable.
++ */
++#define __visible __attribute__((externally_visible))
++
++/*
++ * GCC 'asm goto' miscompiles certain code sequences:
++ *
++ *   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
++ *
++ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
++ * Fixed in GCC 4.8.2 and later versions.
++ *
++ * (asm goto is automatically volatile - the naming reflects this.)
++ */
++#define asm_volatile_goto(x...)	do { asm goto(x); asm (""); } while (0)
++
++#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
++#define __HAVE_BUILTIN_BSWAP32__
++#define __HAVE_BUILTIN_BSWAP64__
++#define __HAVE_BUILTIN_BSWAP16__
++#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
+diff --git a/include/linux/sched.h b/include/linux/sched.h
+index 8293545ac9b7..f87e9a8d364f 100644
+--- a/include/linux/sched.h
++++ b/include/linux/sched.h
+@@ -1670,11 +1670,13 @@ extern void thread_group_cputime_adjusted(struct task_struct *p, cputime_t *ut,
+ #define tsk_used_math(p) ((p)->flags & PF_USED_MATH)
+ #define used_math() tsk_used_math(current)
+ 
+-/* __GFP_IO isn't allowed if PF_MEMALLOC_NOIO is set in current->flags */
++/* __GFP_IO isn't allowed if PF_MEMALLOC_NOIO is set in current->flags
++ * __GFP_FS is also cleared as it implies __GFP_IO.
++ */
+ static inline gfp_t memalloc_noio_flags(gfp_t flags)
+ {
+ 	if (unlikely(current->flags & PF_MEMALLOC_NOIO))
+-		flags &= ~__GFP_IO;
++		flags &= ~(__GFP_IO | __GFP_FS);
+ 	return flags;
+ }
+ 
+diff --git a/lib/lzo/lzo1x_decompress_safe.c b/lib/lzo/lzo1x_decompress_safe.c
+index 8563081e8da3..a1c387f6afba 100644
+--- a/lib/lzo/lzo1x_decompress_safe.c
++++ b/lib/lzo/lzo1x_decompress_safe.c
+@@ -19,31 +19,21 @@
+ #include <linux/lzo.h>
+ #include "lzodefs.h"
+ 
+-#define HAVE_IP(t, x)					\
+-	(((size_t)(ip_end - ip) >= (size_t)(t + x)) &&	\
+-	 (((t + x) >= t) && ((t + x) >= x)))
++#define HAVE_IP(x)      ((size_t)(ip_end - ip) >= (size_t)(x))
++#define HAVE_OP(x)      ((size_t)(op_end - op) >= (size_t)(x))
++#define NEED_IP(x)      if (!HAVE_IP(x)) goto input_overrun
++#define NEED_OP(x)      if (!HAVE_OP(x)) goto output_overrun
++#define TEST_LB(m_pos)  if ((m_pos) < out) goto lookbehind_overrun
+ 
+-#define HAVE_OP(t, x)					\
+-	(((size_t)(op_end - op) >= (size_t)(t + x)) &&	\
+-	 (((t + x) >= t) && ((t + x) >= x)))
+-
+-#define NEED_IP(t, x)					\
+-	do {						\
+-		if (!HAVE_IP(t, x))			\
+-			goto input_overrun;		\
+-	} while (0)
+-
+-#define NEED_OP(t, x)					\
+-	do {						\
+-		if (!HAVE_OP(t, x))			\
+-			goto output_overrun;		\
+-	} while (0)
+-
+-#define TEST_LB(m_pos)					\
+-	do {						\
+-		if ((m_pos) < out)			\
+-			goto lookbehind_overrun;	\
+-	} while (0)
++/* This MAX_255_COUNT is the maximum number of times we can add 255 to a base
++ * count without overflowing an integer. The multiply will overflow when
++ * multiplying 255 by more than MAXINT/255. The sum will overflow earlier
++ * depending on the base count. Since the base count is taken from a u8
++ * and a few bits, it is safe to assume that it will always be lower than
++ * or equal to 2*255, thus we can always prevent any overflow by accepting
++ * two less 255 steps. See Documentation/lzo.txt for more information.
++ */
++#define MAX_255_COUNT      ((((size_t)~0) / 255) - 2)
+ 
+ int lzo1x_decompress_safe(const unsigned char *in, size_t in_len,
+ 			  unsigned char *out, size_t *out_len)
+@@ -75,17 +65,24 @@ int lzo1x_decompress_safe(const unsigned char *in, size_t in_len,
+ 		if (t < 16) {
+ 			if (likely(state == 0)) {
+ 				if (unlikely(t == 0)) {
++					size_t offset;
++					const unsigned char *ip_last = ip;
++
+ 					while (unlikely(*ip == 0)) {
+-						t += 255;
+ 						ip++;
+-						NEED_IP(1, 0);
++						NEED_IP(1);
+ 					}
+-					t += 15 + *ip++;
++					offset = ip - ip_last;
++					if (unlikely(offset > MAX_255_COUNT))
++						return LZO_E_ERROR;
++
++					offset = (offset << 8) - offset;
++					t += offset + 15 + *ip++;
+ 				}
+ 				t += 3;
+ copy_literal_run:
+ #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
+-				if (likely(HAVE_IP(t, 15) && HAVE_OP(t, 15))) {
++				if (likely(HAVE_IP(t + 15) && HAVE_OP(t + 15))) {
+ 					const unsigned char *ie = ip + t;
+ 					unsigned char *oe = op + t;
+ 					do {
+@@ -101,8 +98,8 @@ copy_literal_run:
+ 				} else
+ #endif
+ 				{
+-					NEED_OP(t, 0);
+-					NEED_IP(t, 3);
++					NEED_OP(t);
++					NEED_IP(t + 3);
+ 					do {
+ 						*op++ = *ip++;
+ 					} while (--t > 0);
+@@ -115,7 +112,7 @@ copy_literal_run:
+ 				m_pos -= t >> 2;
+ 				m_pos -= *ip++ << 2;
+ 				TEST_LB(m_pos);
+-				NEED_OP(2, 0);
++				NEED_OP(2);
+ 				op[0] = m_pos[0];
+ 				op[1] = m_pos[1];
+ 				op += 2;
+@@ -136,13 +133,20 @@ copy_literal_run:
+ 		} else if (t >= 32) {
+ 			t = (t & 31) + (3 - 1);
+ 			if (unlikely(t == 2)) {
++				size_t offset;
++				const unsigned char *ip_last = ip;
++
+ 				while (unlikely(*ip == 0)) {
+-					t += 255;
+ 					ip++;
+-					NEED_IP(1, 0);
++					NEED_IP(1);
+ 				}
+-				t += 31 + *ip++;
+-				NEED_IP(2, 0);
++				offset = ip - ip_last;
++				if (unlikely(offset > MAX_255_COUNT))
++					return LZO_E_ERROR;
++
++				offset = (offset << 8) - offset;
++				t += offset + 31 + *ip++;
++				NEED_IP(2);
+ 			}
+ 			m_pos = op - 1;
+ 			next = get_unaligned_le16(ip);
+@@ -154,13 +158,20 @@ copy_literal_run:
+ 			m_pos -= (t & 8) << 11;
+ 			t = (t & 7) + (3 - 1);
+ 			if (unlikely(t == 2)) {
++				size_t offset;
++				const unsigned char *ip_last = ip;
++
+ 				while (unlikely(*ip == 0)) {
+-					t += 255;
+ 					ip++;
+-					NEED_IP(1, 0);
++					NEED_IP(1);
+ 				}
+-				t += 7 + *ip++;
+-				NEED_IP(2, 0);
++				offset = ip - ip_last;
++				if (unlikely(offset > MAX_255_COUNT))
++					return LZO_E_ERROR;
++
++				offset = (offset << 8) - offset;
++				t += offset + 7 + *ip++;
++				NEED_IP(2);
+ 			}
+ 			next = get_unaligned_le16(ip);
+ 			ip += 2;
+@@ -174,7 +185,7 @@ copy_literal_run:
+ #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
+ 		if (op - m_pos >= 8) {
+ 			unsigned char *oe = op + t;
+-			if (likely(HAVE_OP(t, 15))) {
++			if (likely(HAVE_OP(t + 15))) {
+ 				do {
+ 					COPY8(op, m_pos);
+ 					op += 8;
+@@ -184,7 +195,7 @@ copy_literal_run:
+ 					m_pos += 8;
+ 				} while (op < oe);
+ 				op = oe;
+-				if (HAVE_IP(6, 0)) {
++				if (HAVE_IP(6)) {
+ 					state = next;
+ 					COPY4(op, ip);
+ 					op += next;
+@@ -192,7 +203,7 @@ copy_literal_run:
+ 					continue;
+ 				}
+ 			} else {
+-				NEED_OP(t, 0);
++				NEED_OP(t);
+ 				do {
+ 					*op++ = *m_pos++;
+ 				} while (op < oe);
+@@ -201,7 +212,7 @@ copy_literal_run:
+ #endif
+ 		{
+ 			unsigned char *oe = op + t;
+-			NEED_OP(t, 0);
++			NEED_OP(t);
+ 			op[0] = m_pos[0];
+ 			op[1] = m_pos[1];
+ 			op += 2;
+@@ -214,15 +225,15 @@ match_next:
+ 		state = next;
+ 		t = next;
+ #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
+-		if (likely(HAVE_IP(6, 0) && HAVE_OP(4, 0))) {
++		if (likely(HAVE_IP(6) && HAVE_OP(4))) {
+ 			COPY4(op, ip);
+ 			op += t;
+ 			ip += t;
+ 		} else
+ #endif
+ 		{
+-			NEED_IP(t, 3);
+-			NEED_OP(t, 0);
++			NEED_IP(t + 3);
++			NEED_OP(t);
+ 			while (t > 0) {
+ 				*op++ = *ip++;
+ 				t--;
+diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
+index f92818155958..175dca44c97e 100644
+--- a/sound/core/pcm_native.c
++++ b/sound/core/pcm_native.c
+@@ -3197,7 +3197,7 @@ static const struct vm_operations_struct snd_pcm_vm_ops_data_fault = {
+ 
+ #ifndef ARCH_HAS_DMA_MMAP_COHERENT
+ /* This should be defined / handled globally! */
+-#ifdef CONFIG_ARM
++#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
+ #define ARCH_HAS_DMA_MMAP_COHERENT
+ #endif
+ #endif
+diff --git a/sound/pci/emu10k1/emu10k1_callback.c b/sound/pci/emu10k1/emu10k1_callback.c
+index cae36597aa71..0a34b5f1c475 100644
+--- a/sound/pci/emu10k1/emu10k1_callback.c
++++ b/sound/pci/emu10k1/emu10k1_callback.c
+@@ -85,6 +85,8 @@ snd_emu10k1_ops_setup(struct snd_emux *emux)
+  * get more voice for pcm
+  *
+  * terminate most inactive voice and give it as a pcm voice.
++ *
++ * voice_lock is already held.
+  */
+ int
+ snd_emu10k1_synth_get_voice(struct snd_emu10k1 *hw)
+@@ -92,12 +94,10 @@ snd_emu10k1_synth_get_voice(struct snd_emu10k1 *hw)
+ 	struct snd_emux *emu;
+ 	struct snd_emux_voice *vp;
+ 	struct best_voice best[V_END];
+-	unsigned long flags;
+ 	int i;
+ 
+ 	emu = hw->synth;
+ 
+-	spin_lock_irqsave(&emu->voice_lock, flags);
+ 	lookup_voices(emu, hw, best, 1); /* no OFF voices */
+ 	for (i = 0; i < V_END; i++) {
+ 		if (best[i].voice >= 0) {
+@@ -113,11 +113,9 @@ snd_emu10k1_synth_get_voice(struct snd_emu10k1 *hw)
+ 			vp->emu->num_voices--;
+ 			vp->ch = -1;
+ 			vp->state = SNDRV_EMUX_ST_OFF;
+-			spin_unlock_irqrestore(&emu->voice_lock, flags);
+ 			return ch;
+ 		}
+ 	}
+-	spin_unlock_irqrestore(&emu->voice_lock, flags);
+ 
+ 	/* not found */
+ 	return -ENOMEM;
+diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
+index 8b75bcf136f6..d5bed1d25713 100644
+--- a/sound/usb/quirks-table.h
++++ b/sound/usb/quirks-table.h
+@@ -386,6 +386,36 @@ YAMAHA_DEVICE(0x105d, NULL),
+ 	}
+ },
+ {
++	USB_DEVICE(0x0499, 0x1509),
++	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
++		/* .vendor_name = "Yamaha", */
++		/* .product_name = "Steinberg UR22", */
++		.ifnum = QUIRK_ANY_INTERFACE,
++		.type = QUIRK_COMPOSITE,
++		.data = (const struct snd_usb_audio_quirk[]) {
++			{
++				.ifnum = 1,
++				.type = QUIRK_AUDIO_STANDARD_INTERFACE
++			},
++			{
++				.ifnum = 2,
++				.type = QUIRK_AUDIO_STANDARD_INTERFACE
++			},
++			{
++				.ifnum = 3,
++				.type = QUIRK_MIDI_YAMAHA
++			},
++			{
++				.ifnum = 4,
++				.type = QUIRK_IGNORE_INTERFACE
++			},
++			{
++				.ifnum = -1
++			}
++		}
++	}
++},
++{
+ 	USB_DEVICE(0x0499, 0x150a),
+ 	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+ 		/* .vendor_name = "Yamaha", */
+diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
+index 8cf1cd2fadaa..a17f190be58e 100644
+--- a/virt/kvm/kvm_main.c
++++ b/virt/kvm/kvm_main.c
+@@ -52,6 +52,7 @@
+ 
+ #include <asm/processor.h>
+ #include <asm/io.h>
++#include <asm/ioctl.h>
+ #include <asm/uaccess.h>
+ #include <asm/pgtable.h>
+ 
+@@ -1981,6 +1982,9 @@ static long kvm_vcpu_ioctl(struct file *filp,
+ 	if (vcpu->kvm->mm != current->mm)
+ 		return -EIO;
+ 
++	if (unlikely(_IOC_TYPE(ioctl) != KVMIO))
++		return -EINVAL;
++
+ #if defined(CONFIG_S390) || defined(CONFIG_PPC) || defined(CONFIG_MIPS)
+ 	/*
+ 	 * Special cases: vcpu ioctls that are asynchronous to vcpu execution,