Merge tag 'nfs-rdma-for-4.1-1' of git://git.linux-nfs.org/projects/anna/nfs-rdma

NFS: NFSoRDMA Client Changes

This patch series creates an operation vector for each of the different
memory registration modes.  This should make it easier to one day increase
credit limit, rsize, and wsize.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

20 files changed, 77 insertions, 24 deletions

diff --git a/include/linux/clk.h b/include/linux/clk.h
index 8381bbfbc308..68c16a6bedb3 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -125,6 +125,19 @@ int clk_set_phase(struct clk *clk, int degrees);
  */
 int clk_get_phase(struct clk *clk);
 
+/**
+ * clk_is_match - check if two clk's point to the same hardware clock
+ * @p: clk compared against q
+ * @q: clk compared against p
+ *
+ * Returns true if the two struct clk pointers both point to the same hardware
+ * clock node. Put differently, returns true if struct clk *p and struct clk *q
+ * share the same struct clk_core object.
+ *
+ * Returns false otherwise. Note that two NULL clks are treated as matching.
+ */
+bool clk_is_match(const struct clk *p, const struct clk *q);
+
 #else
 
 static inline long clk_get_accuracy(struct clk *clk)
@@ -142,6 +155,11 @@ static inline long clk_get_phase(struct clk *clk)
         return -ENOTSUPP;
 }
 
+static inline bool clk_is_match(const struct clk *p, const struct clk *q)
+{
+        return p == q;
+}
+
 #endif
 
 /**
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 2646aed1d3fe..fd23978d93fe 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -375,6 +375,7 @@ int dm_create(int minor, struct mapped_device **md);
  */
 struct mapped_device *dm_get_md(dev_t dev);
 void dm_get(struct mapped_device *md);
+int dm_hold(struct mapped_device *md);
 void dm_put(struct mapped_device *md);
 
 /*
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index 800544bc7bfd..781974afff9f 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -166,6 +166,11 @@
 
 #define GITS_TRANSLATER                 0x10040
 
+#define GITS_CTLR_ENABLE                (1U << 0)
+#define GITS_CTLR_QUIESCENT             (1U << 31)
+
+#define GITS_TYPER_DEVBITS_SHIFT        13
+#define GITS_TYPER_DEVBITS(r)           ((((r) >> GITS_TYPER_DEVBITS_SHIFT) & 0x1f) + 1)
 #define GITS_TYPER_PTA                  (1UL << 19)
 
 #define GITS_CBASER_VALID               (1UL << 63)
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 72ba725ddf9c..5bb074431eb0 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -5,6 +5,7 @@
 
 struct kmem_cache;
 struct page;
+struct vm_struct;
 
 #ifdef CONFIG_KASAN
 
@@ -49,15 +50,11 @@ void kasan_krealloc(const void *object, size_t new_size);
 void kasan_slab_alloc(struct kmem_cache *s, void *object);
 void kasan_slab_free(struct kmem_cache *s, void *object);
 
-#define MODULE_ALIGN (PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
-
 int kasan_module_alloc(void *addr, size_t size);
-void kasan_module_free(void *addr);
+void kasan_free_shadow(const struct vm_struct *vm);
 
 #else /* CONFIG_KASAN */
 
-#define MODULE_ALIGN 1
-
 static inline void kasan_unpoison_shadow(const void *address, size_t size) {}
 
 static inline void kasan_enable_current(void) {}
@@ -82,7 +79,7 @@ static inline void kasan_slab_alloc(struct kmem_cache *s, void *object) {}
 static inline void kasan_slab_free(struct kmem_cache *s, void *object) {}
 
 static inline int kasan_module_alloc(void *addr, size_t size) { return 0; }
-static inline void kasan_module_free(void *addr) {}
+static inline void kasan_free_shadow(const struct vm_struct *vm) {}
 
 #endif /* CONFIG_KASAN */
 
diff --git a/include/linux/libata.h b/include/linux/libata.h
index fc03efa64ffe..6b08cc106c21 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -232,6 +232,7 @@ enum {
                                               * led */
         ATA_FLAG_NO_DIPM        = (1 << 23), /* host not happy with DIPM */
         ATA_FLAG_LOWTAG         = (1 << 24), /* host wants lowest available tag */
+        ATA_FLAG_SAS_HOST       = (1 << 25), /* SAS host */
 
         /* bits 24:31 of ap->flags are reserved for LLD specific flags */
 
diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h
index fb0390a1a498..ee7b1ce7a6f8 100644
--- a/include/linux/mfd/palmas.h
+++ b/include/linux/mfd/palmas.h
@@ -2999,6 +2999,9 @@ enum usb_irq_events {
 #define PALMAS_GPADC_TRIM15                                     0x0E
 #define PALMAS_GPADC_TRIM16                                     0x0F
 
+/* TPS659038 regen2_ctrl offset iss different from palmas */
+#define TPS659038_REGEN2_CTRL                                   0x12
+
 /* TPS65917 Interrupt registers */
 
 /* Registers for function INTERRUPT */
diff --git a/include/linux/module.h b/include/linux/module.h
index 42999fe2dbd0..b03485bcb82a 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -344,6 +344,10 @@ struct module {
         unsigned long *ftrace_callsites;
 #endif
 
+#ifdef CONFIG_LIVEPATCH
+        bool klp_alive;
+#endif
+
 #ifdef CONFIG_MODULE_UNLOAD
         /* What modules depend on me? */
         struct list_head source_list;
diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index f7556261fe3c..4d0cb9bba93e 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -84,4 +84,12 @@ void module_arch_cleanup(struct module *mod);
 
 /* Any cleanup before freeing mod->module_init */
 void module_arch_freeing_init(struct module *mod);
+
+#ifdef CONFIG_KASAN
+#include <linux/kasan.h>
+#define MODULE_ALIGN (PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
+#else
+#define MODULE_ALIGN PAGE_SIZE
+#endif
+
 #endif
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 429d1790a27e..dcf6ec27739b 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -965,9 +965,12 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
  *      Used to add FDB entries to dump requests. Implementers should add
  *      entries to skb and update idx with the number of entries.
  *
- * int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh)
+ * int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh,
+ *                           u16 flags)
  * int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq,
  *                           struct net_device *dev, u32 filter_mask)
+ * int (*ndo_bridge_dellink)(struct net_device *dev, struct nlmsghdr *nlh,
+ *                           u16 flags);
  *
  * int (*ndo_change_carrier)(struct net_device *dev, bool new_carrier);
  *      Called to change device carrier. Soft-devices (like dummy, team, etc)
diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
index 8a860f096c35..611a691145c4 100644
--- a/include/linux/of_platform.h
+++ b/include/linux/of_platform.h
@@ -84,7 +84,7 @@ static inline int of_platform_populate(struct device_node *root,
 static inline void of_platform_depopulate(struct device *parent) { }
 #endif
 
-#ifdef CONFIG_OF_DYNAMIC
+#if defined(CONFIG_OF_DYNAMIC) && defined(CONFIG_OF_ADDRESS)
 extern void of_platform_register_reconfig_notifier(void);
 #else
 static inline void of_platform_register_reconfig_notifier(void) { }
diff --git a/include/linux/pinctrl/consumer.h b/include/linux/pinctrl/consumer.h
index 72c0415d6c21..18eccefea06e 100644
--- a/include/linux/pinctrl/consumer.h
+++ b/include/linux/pinctrl/consumer.h
@@ -82,7 +82,7 @@ static inline int pinctrl_gpio_direction_output(unsigned gpio)
 
 static inline struct pinctrl * __must_check pinctrl_get(struct device *dev)
 {
-        return ERR_PTR(-ENOSYS);
+        return NULL;
 }
 
 static inline void pinctrl_put(struct pinctrl *p)
@@ -93,7 +93,7 @@ static inline struct pinctrl_state * __must_check pinctrl_lookup_state(
                                                         struct pinctrl *p,
                                                         const char *name)
 {
-        return ERR_PTR(-ENOSYS);
+        return NULL;
 }
 
 static inline int pinctrl_select_state(struct pinctrl *p,
@@ -104,7 +104,7 @@ static inline int pinctrl_select_state(struct pinctrl *p,
 
 static inline struct pinctrl * __must_check devm_pinctrl_get(struct device *dev)
 {
-        return ERR_PTR(-ENOSYS);
+        return NULL;
 }
 
 static inline void devm_pinctrl_put(struct pinctrl *p)
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index d4ad5b5a02bb..045f709cb89b 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -316,7 +316,7 @@ struct regulator_desc {
  * @driver_data: private regulator data
  * @of_node: OpenFirmware node to parse for device tree bindings (may be
  *           NULL).
- * @regmap: regmap to use for core regmap helpers if dev_get_regulator() is
+ * @regmap: regmap to use for core regmap helpers if dev_get_regmap() is
  *          insufficient.
  * @ena_gpio_initialized: GPIO controlling regulator enable was properly
  *                        initialized, meaning that >= 0 is a valid gpio
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 6d77432e14ff..a419b65770d6 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1625,11 +1625,11 @@ struct task_struct {
 
         /*
          * numa_faults_locality tracks if faults recorded during the last
-         * scan window were remote/local. The task scan period is adapted
-         * based on the locality of the faults with different weights
-         * depending on whether they were shared or private faults
+         * scan window were remote/local or failed to migrate. The task scan
+         * period is adapted based on the locality of the faults with different
+         * weights depending on whether they were shared or private faults
          */
-        unsigned long numa_faults_locality[2];
+        unsigned long numa_faults_locality[3];
 
         unsigned long numa_pages_migrated;
 #endif /* CONFIG_NUMA_BALANCING */
@@ -1719,6 +1719,7 @@ struct task_struct {
 #define TNF_NO_GROUP    0x02
 #define TNF_SHARED      0x04
 #define TNF_FAULT_LOCAL 0x08
+#define TNF_MIGRATE_FAIL 0x10
 
 #ifdef CONFIG_NUMA_BALANCING
 extern void task_numa_fault(int last_node, int node, int pages, int flags);
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 30007afe70b3..f54d6659713a 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -948,6 +948,13 @@ static inline void skb_copy_hash(struct sk_buff *to, const struct sk_buff *from)
         to->l4_hash = from->l4_hash;
 };
 
+static inline void skb_sender_cpu_clear(struct sk_buff *skb)
+{
+#ifdef CONFIG_XPS
+        skb->sender_cpu = 0;
+#endif
+}
+
 #ifdef NET_SKBUFF_DATA_USES_OFFSET
 static inline unsigned char *skb_end_pointer(const struct sk_buff *skb)
 {
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index ed9489d893a4..856d34dde79b 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -649,7 +649,7 @@ struct spi_transfer {
  * sequence completes.  On some systems, many such sequences can execute as
  * as single programmed DMA transfer.  On all systems, these messages are
  * queued, and might complete after transactions to other devices.  Messages
- * sent to a given spi_device are alway executed in FIFO order.
+ * sent to a given spi_device are always executed in FIFO order.
  *
  * The code that submits an spi_message (and its spi_transfers)
  * to the lower layers is responsible for managing its memory.
diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h
index aadc6a04e1ac..807371357160 100644
--- a/include/linux/sunrpc/msg_prot.h
+++ b/include/linux/sunrpc/msg_prot.h
@@ -142,12 +142,18 @@ typedef __be32	rpc_fraghdr;
         (RPC_REPHDRSIZE + (2 + RPC_MAX_AUTH_SIZE/4))
 
 /*
- * RFC1833/RFC3530 rpcbind (v3+) well-known netid's.
+ * Well-known netids. See:
+ *
+ *   http://www.iana.org/assignments/rpc-netids/rpc-netids.xhtml
  */
 #define RPCBIND_NETID_UDP       "udp"
 #define RPCBIND_NETID_TCP       "tcp"
+#define RPCBIND_NETID_RDMA      "rdma"
+#define RPCBIND_NETID_SCTP      "sctp"
 #define RPCBIND_NETID_UDP6      "udp6"
 #define RPCBIND_NETID_TCP6      "tcp6"
+#define RPCBIND_NETID_RDMA6     "rdma6"
+#define RPCBIND_NETID_SCTP6     "sctp6"
 #define RPCBIND_NETID_LOCAL     "local"
 
 /*
diff --git a/include/linux/sunrpc/xprtrdma.h b/include/linux/sunrpc/xprtrdma.h
index 64a0a0a97b23..c984c85981ea 100644
--- a/include/linux/sunrpc/xprtrdma.h
+++ b/include/linux/sunrpc/xprtrdma.h
@@ -41,11 +41,6 @@
 #define _LINUX_SUNRPC_XPRTRDMA_H
 
 /*
- * rpcbind (v3+) RDMA netid.
- */
-#define RPCBIND_NETID_RDMA      "rdma"
-
-/*
  * Constants. Max RPC/NFS header is big enough to account for
  * additional marshaling buffers passed down by Linux client.
  *
diff --git a/include/linux/uio.h b/include/linux/uio.h
index 07a022641996..71880299ed48 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -98,6 +98,8 @@ ssize_t iov_iter_get_pages_alloc(struct iov_iter *i, struct page ***pages,
                         size_t maxsize, size_t *start);
 int iov_iter_npages(const struct iov_iter *i, int maxpages);
 
+const void *dup_iter(struct iov_iter *new, struct iov_iter *old, gfp_t flags);
+
 static inline size_t iov_iter_count(struct iov_iter *i)
 {
         return i->count;
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 7d7acb35603d..0ec598381f97 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -17,6 +17,7 @@ struct vm_area_struct;		/* vma defining user mapping in mm_types.h */
 #define VM_VPAGES               0x00000010      /* buffer for pages was vmalloc'ed */
 #define VM_UNINITIALIZED        0x00000020      /* vm_struct is not fully initialized */
 #define VM_NO_GUARD             0x00000040      /* don't add guard page */
+#define VM_KASAN                0x00000080      /* has allocated kasan shadow memory */
 /* bits [20..32] reserved for arch specific ioremap internals */
 
 /*
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 74db135f9957..f597846ff605 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -70,7 +70,8 @@ enum {
         /* data contains off-queue information when !WORK_STRUCT_PWQ */
         WORK_OFFQ_FLAG_BASE     = WORK_STRUCT_COLOR_SHIFT,
 
-        WORK_OFFQ_CANCELING     = (1 << WORK_OFFQ_FLAG_BASE),
+        __WORK_OFFQ_CANCELING   = WORK_OFFQ_FLAG_BASE,
+        WORK_OFFQ_CANCELING     = (1 << __WORK_OFFQ_CANCELING),
 
         /*
          * When a work item is off queue, its high bits point to the last