33 files changed, 743 insertions, 120 deletions

diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index d1e93284d72a..33bbbae4ddc6 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -12,7 +12,6 @@
 #define __ASM_GENERIC_IO_H
 
 #include <asm/page.h> /* I/O is all done through memory accesses */
-#include <asm/cacheflush.h>
 #include <linux/types.h>
 
 #ifdef CONFIG_GENERIC_IOMAP
@@ -223,36 +222,6 @@ static inline void outsl(unsigned long addr, const void *buffer, int count)
 }
 #endif
 
-static inline void readsl(const void __iomem *addr, void *buf, int len)
-{
-        insl(addr - PCI_IOBASE, buf, len);
-}
-
-static inline void readsw(const void __iomem *addr, void *buf, int len)
-{
-        insw(addr - PCI_IOBASE, buf, len);
-}
-
-static inline void readsb(const void __iomem *addr, void *buf, int len)
-{
-        insb(addr - PCI_IOBASE, buf, len);
-}
-
-static inline void writesl(const void __iomem *addr, const void *buf, int len)
-{
-        outsl(addr - PCI_IOBASE, buf, len);
-}
-
-static inline void writesw(const void __iomem *addr, const void *buf, int len)
-{
-        outsw(addr - PCI_IOBASE, buf, len);
-}
-
-static inline void writesb(const void __iomem *addr, const void *buf, int len)
-{
-        outsb(addr - PCI_IOBASE, buf, len);
-}
-
 #ifndef CONFIG_GENERIC_IOMAP
 #define ioread8(addr)           readb(addr)
 #define ioread16(addr)          readw(addr)
diff --git a/include/asm-generic/mmu.h b/include/asm-generic/mmu.h
index 4f4aa56d6b52..0ed3f1cfb854 100644
--- a/include/asm-generic/mmu.h
+++ b/include/asm-generic/mmu.h
@@ -7,8 +7,12 @@
  */
 #ifndef __ASSEMBLY__
 typedef struct {
-        struct vm_list_struct   *vmlist;
         unsigned long           end_brk;
+
+#ifdef CONFIG_BINFMT_ELF_FDPIC
+        unsigned long           exec_fdpic_loadmap;
+        unsigned long           interp_fdpic_loadmap;
+#endif
 } mm_context_t;
 #endif
 
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 2a9a9abc9126..12731a19ef06 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -114,6 +114,7 @@ struct backing_dev_info {
 int bdi_init(struct backing_dev_info *bdi);
 void bdi_destroy(struct backing_dev_info *bdi);
 
+__printf(3, 4)
 int bdi_register(struct backing_dev_info *bdi, struct device *parent,
                 const char *fmt, ...);
 int bdi_register_dev(struct backing_dev_info *bdi, dev_t dev);
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index a4c2b565c835..0530b9860359 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -112,6 +112,7 @@ extern int setup_arg_pages(struct linux_binprm * bprm,
                            unsigned long stack_top,
                            int executable_stack);
 extern int bprm_mm_init(struct linux_binprm *bprm);
+extern int bprm_change_interp(char *interp, struct linux_binprm *bprm);
 extern int copy_strings_kernel(int argc, const char *const *argv,
                                struct linux_binprm *bprm);
 extern int prepare_bprm_creds(struct linux_binprm *bprm);
@@ -119,8 +120,4 @@ extern void install_exec_creds(struct linux_binprm *bprm);
 extern void set_binfmt(struct linux_binfmt *new);
 extern void free_bprm(struct linux_binprm *);
 
-#ifdef __ARCH_WANT_KERNEL_EXECVE
-extern void ret_from_kernel_execve(struct pt_regs *normal) __noreturn;
-#endif
-
 #endif /* _LINUX_BINFMTS_H */
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index 6470792b13d3..084d3c622b12 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -43,7 +43,6 @@ struct ceph_options {
         struct ceph_entity_addr my_addr;
         int mount_timeout;
         int osd_idle_ttl;
-        int osd_timeout;
         int osd_keepalive_timeout;
 
         /*
@@ -63,7 +62,6 @@ struct ceph_options {
  * defaults
  */
 #define CEPH_MOUNT_TIMEOUT_DEFAULT  60
-#define CEPH_OSD_TIMEOUT_DEFAULT    60  /* seconds */
 #define CEPH_OSD_KEEPALIVE_DEFAULT  5
 #define CEPH_OSD_IDLE_TTL_DEFAULT    60
 
diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h
index e37acbe989a9..10a417f9f76f 100644
--- a/include/linux/ceph/osdmap.h
+++ b/include/linux/ceph/osdmap.h
@@ -123,6 +123,7 @@ extern int ceph_calc_pg_acting(struct ceph_osdmap *osdmap, struct ceph_pg pgid,
 extern int ceph_calc_pg_primary(struct ceph_osdmap *osdmap,
                                 struct ceph_pg pgid);
 
+extern const char *ceph_pg_pool_name_by_id(struct ceph_osdmap *map, u64 id);
 extern int ceph_pg_poolid_by_name(struct ceph_osdmap *map, const char *name);
 
 #endif
diff --git a/include/linux/ceph/rados.h b/include/linux/ceph/rados.h
index de91fbdf127e..2c04afeead1c 100644
--- a/include/linux/ceph/rados.h
+++ b/include/linux/ceph/rados.h
@@ -87,6 +87,8 @@ struct ceph_pg {
  *
  *  lpgp_num -- as above.
  */
+#define CEPH_NOPOOL  ((__u64) (-1))  /* pool id not defined */
+
 #define CEPH_PG_TYPE_REP     1
 #define CEPH_PG_TYPE_RAID4   2
 #define CEPH_PG_POOL_VERSION 2
diff --git a/include/linux/compat.h b/include/linux/compat.h
index e4920bd58a47..dec7e2d18875 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -23,6 +23,61 @@
 #define COMPAT_USE_64BIT_TIME 0
 #endif
 
+#ifndef __SC_DELOUSE
+#define __SC_DELOUSE(t,v) ((t)(unsigned long)(v))
+#endif
+
+#define __SC_CCAST1(t1, a1)      __SC_DELOUSE(t1,a1)
+#define __SC_CCAST2(t2, a2, ...) __SC_DELOUSE(t2,a2), __SC_CCAST1(__VA_ARGS__)
+#define __SC_CCAST3(t3, a3, ...) __SC_DELOUSE(t3,a3), __SC_CCAST2(__VA_ARGS__)
+#define __SC_CCAST4(t4, a4, ...) __SC_DELOUSE(t4,a4), __SC_CCAST3(__VA_ARGS__)
+#define __SC_CCAST5(t5, a5, ...) __SC_DELOUSE(t5,a5), __SC_CCAST4(__VA_ARGS__)
+#define __SC_CCAST6(t6, a6, ...) __SC_DELOUSE(t6,a6), __SC_CCAST5(__VA_ARGS__)
+#define COMPAT_SYSCALL_DEFINE1(name, ...) \
+        COMPAT_SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
+#define COMPAT_SYSCALL_DEFINE2(name, ...) \
+        COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
+#define COMPAT_SYSCALL_DEFINE3(name, ...) \
+        COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
+#define COMPAT_SYSCALL_DEFINE4(name, ...) \
+        COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
+#define COMPAT_SYSCALL_DEFINE5(name, ...) \
+        COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
+#define COMPAT_SYSCALL_DEFINE6(name, ...) \
+        COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
+
+#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
+
+#define COMPAT_SYSCALL_DEFINEx(x, name, ...)                            \
+        asmlinkage long compat_sys##name(__SC_DECL##x(__VA_ARGS__));    \
+        static inline long C_SYSC##name(__SC_DECL##x(__VA_ARGS__));     \
+        asmlinkage long compat_SyS##name(__SC_LONG##x(__VA_ARGS__))     \
+        {                                                               \
+                return (long) C_SYSC##name(__SC_CCAST##x(__VA_ARGS__)); \
+        }                                                               \
+        SYSCALL_ALIAS(compat_sys##name, compat_SyS##name);              \
+        static inline long C_SYSC##name(__SC_DECL##x(__VA_ARGS__))
+
+#else /* CONFIG_HAVE_SYSCALL_WRAPPERS */
+
+#define COMPAT_SYSCALL_DEFINEx(x, name, ...)                            \
+        asmlinkage long compat_sys##name(__SC_DECL##x(__VA_ARGS__))
+
+#endif /* CONFIG_HAVE_SYSCALL_WRAPPERS */
+
+#ifndef compat_user_stack_pointer
+#define compat_user_stack_pointer() current_user_stack_pointer()
+#endif
+#ifdef CONFIG_GENERIC_SIGALTSTACK
+#ifndef compat_sigaltstack      /* we'll need that for MIPS */
+typedef struct compat_sigaltstack {
+        compat_uptr_t                   ss_sp;
+        int                             ss_flags;
+        compat_size_t                   ss_size;
+} compat_stack_t;
+#endif
+#endif
+
 #define compat_jiffies_to_clock_t(x)    \
                 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
 
@@ -587,6 +642,13 @@ asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
 
 asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
                                     compat_off_t __user *offset, compat_size_t count);
+#ifdef CONFIG_GENERIC_SIGALTSTACK
+asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr,
+                                       compat_stack_t __user *uoss_ptr);
+
+int compat_restore_altstack(const compat_stack_t __user *uss);
+int __compat_save_altstack(compat_stack_t __user *, unsigned long);
+#endif
 
 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid,
                                                  struct compat_timespec __user *interval);
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 59200795482e..c1754b59ddd3 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -202,7 +202,6 @@ struct dentry_operations {
 #define DCACHE_MOUNTED          0x10000 /* is a mountpoint */
 #define DCACHE_NEED_AUTOMOUNT   0x20000 /* handle automount on this dir */
 #define DCACHE_MANAGE_TRANSIT   0x40000 /* manage transit from this dirent */
-#define DCACHE_NEED_LOOKUP      0x80000 /* dentry requires i_op->lookup */
 #define DCACHE_MANAGED_DENTRY \
         (DCACHE_MOUNTED|DCACHE_NEED_AUTOMOUNT|DCACHE_MANAGE_TRANSIT)
 
@@ -408,13 +407,6 @@ static inline bool d_mountpoint(struct dentry *dentry)
         return dentry->d_flags & DCACHE_MOUNTED;
 }
 
-static inline bool d_need_lookup(struct dentry *dentry)
-{
-        return dentry->d_flags & DCACHE_NEED_LOOKUP;
-}
-
-extern void d_clear_need_lookup(struct dentry *dentry);
-
 extern int sysctl_vfs_cache_pressure;
 
 #endif  /* __LINUX_DCACHE_H */
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 38d27a10aa5d..bf6afa2fc432 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -23,7 +23,6 @@ typedef enum { STATUSTYPE_INFO, STATUSTYPE_TABLE } status_type_t;
 union map_info {
         void *ptr;
         unsigned long long ll;
-        unsigned target_request_nr;
 };
 
 /*
@@ -46,8 +45,7 @@ typedef void (*dm_dtr_fn) (struct dm_target *ti);
  * = 1: simple remap complete
  * = 2: The target wants to push back the io
  */
-typedef int (*dm_map_fn) (struct dm_target *ti, struct bio *bio,
-                          union map_info *map_context);
+typedef int (*dm_map_fn) (struct dm_target *ti, struct bio *bio);
 typedef int (*dm_map_request_fn) (struct dm_target *ti, struct request *clone,
                                   union map_info *map_context);
 
@@ -60,8 +58,7 @@ typedef int (*dm_map_request_fn) (struct dm_target *ti, struct request *clone,
  * 2   : The target wants to push back the io
  */
 typedef int (*dm_endio_fn) (struct dm_target *ti,
-                            struct bio *bio, int error,
-                            union map_info *map_context);
+                            struct bio *bio, int error);
 typedef int (*dm_request_endio_fn) (struct dm_target *ti,
                                     struct request *clone, int error,
                                     union map_info *map_context);
@@ -193,18 +190,30 @@ struct dm_target {
          * A number of zero-length barrier requests that will be submitted
          * to the target for the purpose of flushing cache.
          *
-         * The request number will be placed in union map_info->target_request_nr.
+         * The request number can be accessed with dm_bio_get_target_request_nr.
          * It is a responsibility of the target driver to remap these requests
          * to the real underlying devices.
          */
         unsigned num_flush_requests;
 
         /*
-         * The number of discard requests that will be submitted to the
-         * target.  map_info->request_nr is used just like num_flush_requests.
+         * The number of discard requests that will be submitted to the target.
+         * The request number can be accessed with dm_bio_get_target_request_nr.
          */
         unsigned num_discard_requests;
 
+        /*
+         * The number of WRITE SAME requests that will be submitted to the target.
+         * The request number can be accessed with dm_bio_get_target_request_nr.
+         */
+        unsigned num_write_same_requests;
+
+        /*
+         * The minimum number of extra bytes allocated in each bio for the
+         * target to use.  dm_per_bio_data returns the data location.
+         */
+        unsigned per_bio_data_size;
+
         /* target specific data */
         void *private;
 
@@ -241,6 +250,36 @@ struct dm_target_callbacks {
         int (*congested_fn) (struct dm_target_callbacks *, int);
 };
 
+/*
+ * For bio-based dm.
+ * One of these is allocated for each bio.
+ * This structure shouldn't be touched directly by target drivers.
+ * It is here so that we can inline dm_per_bio_data and
+ * dm_bio_from_per_bio_data
+ */
+struct dm_target_io {
+        struct dm_io *io;
+        struct dm_target *ti;
+        union map_info info;
+        unsigned target_request_nr;
+        struct bio clone;
+};
+
+static inline void *dm_per_bio_data(struct bio *bio, size_t data_size)
+{
+        return (char *)bio - offsetof(struct dm_target_io, clone) - data_size;
+}
+
+static inline struct bio *dm_bio_from_per_bio_data(void *data, size_t data_size)
+{
+        return (struct bio *)((char *)data + data_size + offsetof(struct dm_target_io, clone));
+}
+
+static inline unsigned dm_bio_get_target_request_nr(const struct bio *bio)
+{
+        return container_of(bio, struct dm_target_io, clone)->target_request_nr;
+}
+
 int dm_register_target(struct target_type *t);
 void dm_unregister_target(struct target_type *t);
 
diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index 171ad8aedc83..fc0e34ce038f 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -39,6 +39,8 @@ extern void debug_dma_map_page(struct device *dev, struct page *page,
                                int direction, dma_addr_t dma_addr,
                                bool map_single);
 
+extern void debug_dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
+
 extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
                                  size_t size, int direction, bool map_single);
 
@@ -105,6 +107,11 @@ static inline void debug_dma_map_page(struct device *dev, struct page *page,
 {
 }
 
+static inline void debug_dma_mapping_error(struct device *dev,
+                                          dma_addr_t dma_addr)
+{
+}
+
 static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
                                         size_t size, int direction,
                                         bool map_single)
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index c7e6b6392ab8..5b9b5b317180 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -83,6 +83,11 @@ enum fid_type {
          * 64 bit parent inode number.
          */
         FILEID_NILFS_WITH_PARENT = 0x62,
+
+        /*
+         * Filesystems must not use 0xff file ID.
+         */
+        FILEID_INVALID = 0xff,
 };
 
 struct fid {
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
new file mode 100644
index 000000000000..f9a12f6243a5
--- /dev/null
+++ b/include/linux/f2fs_fs.h
@@ -0,0 +1,413 @@
+/**
+ * include/linux/f2fs_fs.h
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *             http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _LINUX_F2FS_FS_H
+#define _LINUX_F2FS_FS_H
+
+#include <linux/pagemap.h>
+#include <linux/types.h>
+
+#define F2FS_SUPER_OFFSET               1024    /* byte-size offset */
+#define F2FS_LOG_SECTOR_SIZE            9       /* 9 bits for 512 byte */
+#define F2FS_LOG_SECTORS_PER_BLOCK      3       /* 4KB: F2FS_BLKSIZE */
+#define F2FS_BLKSIZE                    4096    /* support only 4KB block */
+#define F2FS_MAX_EXTENSION              64      /* # of extension entries */
+
+#define NULL_ADDR               0x0U
+#define NEW_ADDR                -1U
+
+#define F2FS_ROOT_INO(sbi)      (sbi->root_ino_num)
+#define F2FS_NODE_INO(sbi)      (sbi->node_ino_num)
+#define F2FS_META_INO(sbi)      (sbi->meta_ino_num)
+
+/* This flag is used by node and meta inodes, and by recovery */
+#define GFP_F2FS_ZERO   (GFP_NOFS | __GFP_ZERO)
+
+/*
+ * For further optimization on multi-head logs, on-disk layout supports maximum
+ * 16 logs by default. The number, 16, is expected to cover all the cases
+ * enoughly. The implementaion currently uses no more than 6 logs.
+ * Half the logs are used for nodes, and the other half are used for data.
+ */
+#define MAX_ACTIVE_LOGS 16
+#define MAX_ACTIVE_NODE_LOGS    8
+#define MAX_ACTIVE_DATA_LOGS    8
+
+/*
+ * For superblock
+ */
+struct f2fs_super_block {
+        __le32 magic;                   /* Magic Number */
+        __le16 major_ver;               /* Major Version */
+        __le16 minor_ver;               /* Minor Version */
+        __le32 log_sectorsize;          /* log2 sector size in bytes */
+        __le32 log_sectors_per_block;   /* log2 # of sectors per block */
+        __le32 log_blocksize;           /* log2 block size in bytes */
+        __le32 log_blocks_per_seg;      /* log2 # of blocks per segment */
+        __le32 segs_per_sec;            /* # of segments per section */
+        __le32 secs_per_zone;           /* # of sections per zone */
+        __le32 checksum_offset;         /* checksum offset inside super block */
+        __le64 block_count;             /* total # of user blocks */
+        __le32 section_count;           /* total # of sections */
+        __le32 segment_count;           /* total # of segments */
+        __le32 segment_count_ckpt;      /* # of segments for checkpoint */
+        __le32 segment_count_sit;       /* # of segments for SIT */
+        __le32 segment_count_nat;       /* # of segments for NAT */
+        __le32 segment_count_ssa;       /* # of segments for SSA */
+        __le32 segment_count_main;      /* # of segments for main area */
+        __le32 segment0_blkaddr;        /* start block address of segment 0 */
+        __le32 cp_blkaddr;              /* start block address of checkpoint */
+        __le32 sit_blkaddr;             /* start block address of SIT */
+        __le32 nat_blkaddr;             /* start block address of NAT */
+        __le32 ssa_blkaddr;             /* start block address of SSA */
+        __le32 main_blkaddr;            /* start block address of main area */
+        __le32 root_ino;                /* root inode number */
+        __le32 node_ino;                /* node inode number */
+        __le32 meta_ino;                /* meta inode number */
+        __u8 uuid[16];                  /* 128-bit uuid for volume */
+        __le16 volume_name[512];        /* volume name */
+        __le32 extension_count;         /* # of extensions below */
+        __u8 extension_list[F2FS_MAX_EXTENSION][8];     /* extension array */
+} __packed;
+
+/*
+ * For checkpoint
+ */
+#define CP_ERROR_FLAG           0x00000008
+#define CP_COMPACT_SUM_FLAG     0x00000004
+#define CP_ORPHAN_PRESENT_FLAG  0x00000002
+#define CP_UMOUNT_FLAG          0x00000001
+
+struct f2fs_checkpoint {
+        __le64 checkpoint_ver;          /* checkpoint block version number */
+        __le64 user_block_count;        /* # of user blocks */
+        __le64 valid_block_count;       /* # of valid blocks in main area */
+        __le32 rsvd_segment_count;      /* # of reserved segments for gc */
+        __le32 overprov_segment_count;  /* # of overprovision segments */
+        __le32 free_segment_count;      /* # of free segments in main area */
+
+        /* information of current node segments */
+        __le32 cur_node_segno[MAX_ACTIVE_NODE_LOGS];
+        __le16 cur_node_blkoff[MAX_ACTIVE_NODE_LOGS];
+        /* information of current data segments */
+        __le32 cur_data_segno[MAX_ACTIVE_DATA_LOGS];
+        __le16 cur_data_blkoff[MAX_ACTIVE_DATA_LOGS];
+        __le32 ckpt_flags;              /* Flags : umount and journal_present */
+        __le32 cp_pack_total_block_count;       /* total # of one cp pack */
+        __le32 cp_pack_start_sum;       /* start block number of data summary */
+        __le32 valid_node_count;        /* Total number of valid nodes */
+        __le32 valid_inode_count;       /* Total number of valid inodes */
+        __le32 next_free_nid;           /* Next free node number */
+        __le32 sit_ver_bitmap_bytesize; /* Default value 64 */
+        __le32 nat_ver_bitmap_bytesize; /* Default value 256 */
+        __le32 checksum_offset;         /* checksum offset inside cp block */
+        __le64 elapsed_time;            /* mounted time */
+        /* allocation type of current segment */
+        unsigned char alloc_type[MAX_ACTIVE_LOGS];
+
+        /* SIT and NAT version bitmap */
+        unsigned char sit_nat_version_bitmap[1];
+} __packed;
+
+/*
+ * For orphan inode management
+ */
+#define F2FS_ORPHANS_PER_BLOCK  1020
+
+struct f2fs_orphan_block {
+        __le32 ino[F2FS_ORPHANS_PER_BLOCK];     /* inode numbers */
+        __le32 reserved;        /* reserved */
+        __le16 blk_addr;        /* block index in current CP */
+        __le16 blk_count;       /* Number of orphan inode blocks in CP */
+        __le32 entry_count;     /* Total number of orphan nodes in current CP */
+        __le32 check_sum;       /* CRC32 for orphan inode block */
+} __packed;
+
+/*
+ * For NODE structure
+ */
+struct f2fs_extent {
+        __le32 fofs;            /* start file offset of the extent */
+        __le32 blk_addr;        /* start block address of the extent */
+        __le32 len;             /* lengh of the extent */
+} __packed;
+
+#define F2FS_MAX_NAME_LEN       256
+#define ADDRS_PER_INODE         923     /* Address Pointers in an Inode */
+#define ADDRS_PER_BLOCK         1018    /* Address Pointers in a Direct Block */
+#define NIDS_PER_BLOCK          1018    /* Node IDs in an Indirect Block */
+
+struct f2fs_inode {
+        __le16 i_mode;                  /* file mode */
+        __u8 i_advise;                  /* file hints */
+        __u8 i_reserved;                /* reserved */
+        __le32 i_uid;                   /* user ID */
+        __le32 i_gid;                   /* group ID */
+        __le32 i_links;                 /* links count */
+        __le64 i_size;                  /* file size in bytes */
+        __le64 i_blocks;                /* file size in blocks */
+        __le64 i_atime;                 /* access time */
+        __le64 i_ctime;                 /* change time */
+        __le64 i_mtime;                 /* modification time */
+        __le32 i_atime_nsec;            /* access time in nano scale */
+        __le32 i_ctime_nsec;            /* change time in nano scale */
+        __le32 i_mtime_nsec;            /* modification time in nano scale */
+        __le32 i_generation;            /* file version (for NFS) */
+        __le32 i_current_depth;         /* only for directory depth */
+        __le32 i_xattr_nid;             /* nid to save xattr */
+        __le32 i_flags;                 /* file attributes */
+        __le32 i_pino;                  /* parent inode number */
+        __le32 i_namelen;               /* file name length */
+        __u8 i_name[F2FS_MAX_NAME_LEN]; /* file name for SPOR */
+
+        struct f2fs_extent i_ext;       /* caching a largest extent */
+
+        __le32 i_addr[ADDRS_PER_INODE]; /* Pointers to data blocks */
+
+        __le32 i_nid[5];                /* direct(2), indirect(2),
+                                                double_indirect(1) node id */
+} __packed;
+
+struct direct_node {
+        __le32 addr[ADDRS_PER_BLOCK];   /* array of data block address */
+} __packed;
+
+struct indirect_node {
+        __le32 nid[NIDS_PER_BLOCK];     /* array of data block address */
+} __packed;
+
+enum {
+        COLD_BIT_SHIFT = 0,
+        FSYNC_BIT_SHIFT,
+        DENT_BIT_SHIFT,
+        OFFSET_BIT_SHIFT
+};
+
+struct node_footer {
+        __le32 nid;             /* node id */
+        __le32 ino;             /* inode nunmber */
+        __le32 flag;            /* include cold/fsync/dentry marks and offset */
+        __le64 cp_ver;          /* checkpoint version */
+        __le32 next_blkaddr;    /* next node page block address */
+} __packed;
+
+struct f2fs_node {
+        /* can be one of three types: inode, direct, and indirect types */
+        union {
+                struct f2fs_inode i;
+                struct direct_node dn;
+                struct indirect_node in;
+        };
+        struct node_footer footer;
+} __packed;
+
+/*
+ * For NAT entries
+ */
+#define NAT_ENTRY_PER_BLOCK (PAGE_CACHE_SIZE / sizeof(struct f2fs_nat_entry))
+
+struct f2fs_nat_entry {
+        __u8 version;           /* latest version of cached nat entry */
+        __le32 ino;             /* inode number */
+        __le32 block_addr;      /* block address */
+} __packed;
+
+struct f2fs_nat_block {
+        struct f2fs_nat_entry entries[NAT_ENTRY_PER_BLOCK];
+} __packed;
+
+/*
+ * For SIT entries
+ *
+ * Each segment is 2MB in size by default so that a bitmap for validity of
+ * there-in blocks should occupy 64 bytes, 512 bits.
+ * Not allow to change this.
+ */
+#define SIT_VBLOCK_MAP_SIZE 64
+#define SIT_ENTRY_PER_BLOCK (PAGE_CACHE_SIZE / sizeof(struct f2fs_sit_entry))
+
+/*
+ * Note that f2fs_sit_entry->vblocks has the following bit-field information.
+ * [15:10] : allocation type such as CURSEG_XXXX_TYPE
+ * [9:0] : valid block count
+ */
+#define SIT_VBLOCKS_SHIFT       10
+#define SIT_VBLOCKS_MASK        ((1 << SIT_VBLOCKS_SHIFT) - 1)
+#define GET_SIT_VBLOCKS(raw_sit)                                \
+        (le16_to_cpu((raw_sit)->vblocks) & SIT_VBLOCKS_MASK)
+#define GET_SIT_TYPE(raw_sit)                                   \
+        ((le16_to_cpu((raw_sit)->vblocks) & ~SIT_VBLOCKS_MASK)  \
+         >> SIT_VBLOCKS_SHIFT)
+
+struct f2fs_sit_entry {
+        __le16 vblocks;                         /* reference above */
+        __u8 valid_map[SIT_VBLOCK_MAP_SIZE];    /* bitmap for valid blocks */
+        __le64 mtime;                           /* segment age for cleaning */
+} __packed;
+
+struct f2fs_sit_block {
+        struct f2fs_sit_entry entries[SIT_ENTRY_PER_BLOCK];
+} __packed;
+
+/*
+ * For segment summary
+ *
+ * One summary block contains exactly 512 summary entries, which represents
+ * exactly 2MB segment by default. Not allow to change the basic units.
+ *
+ * NOTE: For initializing fields, you must use set_summary
+ *
+ * - If data page, nid represents dnode's nid
+ * - If node page, nid represents the node page's nid.
+ *
+ * The ofs_in_node is used by only data page. It represents offset
+ * from node's page's beginning to get a data block address.
+ * ex) data_blkaddr = (block_t)(nodepage_start_address + ofs_in_node)
+ */
+#define ENTRIES_IN_SUM          512
+#define SUMMARY_SIZE            (7)     /* sizeof(struct summary) */
+#define SUM_FOOTER_SIZE         (5)     /* sizeof(struct summary_footer) */
+#define SUM_ENTRY_SIZE          (SUMMARY_SIZE * ENTRIES_IN_SUM)
+
+/* a summary entry for a 4KB-sized block in a segment */
+struct f2fs_summary {
+        __le32 nid;             /* parent node id */
+        union {
+                __u8 reserved[3];
+                struct {
+                        __u8 version;           /* node version number */
+                        __le16 ofs_in_node;     /* block index in parent node */
+                } __packed;
+        };
+} __packed;
+
+/* summary block type, node or data, is stored to the summary_footer */
+#define SUM_TYPE_NODE           (1)
+#define SUM_TYPE_DATA           (0)
+
+struct summary_footer {
+        unsigned char entry_type;       /* SUM_TYPE_XXX */
+        __u32 check_sum;                /* summary checksum */
+} __packed;
+
+#define SUM_JOURNAL_SIZE        (F2FS_BLKSIZE - SUM_FOOTER_SIZE -\
+                                SUM_ENTRY_SIZE)
+#define NAT_JOURNAL_ENTRIES     ((SUM_JOURNAL_SIZE - 2) /\
+                                sizeof(struct nat_journal_entry))
+#define NAT_JOURNAL_RESERVED    ((SUM_JOURNAL_SIZE - 2) %\
+                                sizeof(struct nat_journal_entry))
+#define SIT_JOURNAL_ENTRIES     ((SUM_JOURNAL_SIZE - 2) /\
+                                sizeof(struct sit_journal_entry))
+#define SIT_JOURNAL_RESERVED    ((SUM_JOURNAL_SIZE - 2) %\
+                                sizeof(struct sit_journal_entry))
+/*
+ * frequently updated NAT/SIT entries can be stored in the spare area in
+ * summary blocks
+ */
+enum {
+        NAT_JOURNAL = 0,
+        SIT_JOURNAL
+};
+
+struct nat_journal_entry {
+        __le32 nid;
+        struct f2fs_nat_entry ne;
+} __packed;
+
+struct nat_journal {
+        struct nat_journal_entry entries[NAT_JOURNAL_ENTRIES];
+        __u8 reserved[NAT_JOURNAL_RESERVED];
+} __packed;
+
+struct sit_journal_entry {
+        __le32 segno;
+        struct f2fs_sit_entry se;
+} __packed;
+
+struct sit_journal {
+        struct sit_journal_entry entries[SIT_JOURNAL_ENTRIES];
+        __u8 reserved[SIT_JOURNAL_RESERVED];
+} __packed;
+
+/* 4KB-sized summary block structure */
+struct f2fs_summary_block {
+        struct f2fs_summary entries[ENTRIES_IN_SUM];
+        union {
+                __le16 n_nats;
+                __le16 n_sits;
+        };
+        /* spare area is used by NAT or SIT journals */
+        union {
+                struct nat_journal nat_j;
+                struct sit_journal sit_j;
+        };
+        struct summary_footer footer;
+} __packed;
+
+/*
+ * For directory operations
+ */
+#define F2FS_DOT_HASH           0
+#define F2FS_DDOT_HASH          F2FS_DOT_HASH
+#define F2FS_MAX_HASH           (~((0x3ULL) << 62))
+#define F2FS_HASH_COL_BIT       ((0x1ULL) << 63)
+
+typedef __le32  f2fs_hash_t;
+
+/* One directory entry slot covers 8bytes-long file name */
+#define F2FS_NAME_LEN           8
+#define F2FS_NAME_LEN_BITS      3
+
+#define GET_DENTRY_SLOTS(x)     ((x + F2FS_NAME_LEN - 1) >> F2FS_NAME_LEN_BITS)
+
+/* the number of dentry in a block */
+#define NR_DENTRY_IN_BLOCK      214
+
+/* MAX level for dir lookup */
+#define MAX_DIR_HASH_DEPTH      63
+
+#define SIZE_OF_DIR_ENTRY       11      /* by byte */
+#define SIZE_OF_DENTRY_BITMAP   ((NR_DENTRY_IN_BLOCK + BITS_PER_BYTE - 1) / \
+                                        BITS_PER_BYTE)
+#define SIZE_OF_RESERVED        (PAGE_SIZE - ((SIZE_OF_DIR_ENTRY + \
+                                F2FS_NAME_LEN) * \
+                                NR_DENTRY_IN_BLOCK + SIZE_OF_DENTRY_BITMAP))
+
+/* One directory entry slot representing F2FS_NAME_LEN-sized file name */
+struct f2fs_dir_entry {
+        __le32 hash_code;       /* hash code of file name */
+        __le32 ino;             /* inode number */
+        __le16 name_len;        /* lengh of file name */
+        __u8 file_type;         /* file type */
+} __packed;
+
+/* 4KB-sized directory entry block */
+struct f2fs_dentry_block {
+        /* validity bitmap for directory entries in each block */
+        __u8 dentry_bitmap[SIZE_OF_DENTRY_BITMAP];
+        __u8 reserved[SIZE_OF_RESERVED];
+        struct f2fs_dir_entry dentry[NR_DENTRY_IN_BLOCK];
+        __u8 filename[NR_DENTRY_IN_BLOCK][F2FS_NAME_LEN];
+} __packed;
+
+/* file types used in inode_info->flags */
+enum {
+        F2FS_FT_UNKNOWN,
+        F2FS_FT_REG_FILE,
+        F2FS_FT_DIR,
+        F2FS_FT_CHRDEV,
+        F2FS_FT_BLKDEV,
+        F2FS_FT_FIFO,
+        F2FS_FT_SOCK,
+        F2FS_FT_SYMLINK,
+        F2FS_FT_MAX
+};
+
+#endif  /* _LINUX_F2FS_FS_H */
diff --git a/include/linux/fs.h b/include/linux/fs.h
index a823d4be38e7..7617ee04f066 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1445,10 +1445,6 @@ static inline void sb_start_intwrite(struct super_block *sb)
 
 extern bool inode_owner_or_capable(const struct inode *inode);
 
-/* not quite ready to be deprecated, but... */
-extern void lock_super(struct super_block *);
-extern void unlock_super(struct super_block *);
-
 /*
  * VFS helper functions..
  */
@@ -1565,7 +1561,6 @@ struct inode_operations {
         int (*mknod) (struct inode *,struct dentry *,umode_t,dev_t);
         int (*rename) (struct inode *, struct dentry *,
                         struct inode *, struct dentry *);
-        void (*truncate) (struct inode *);
         int (*setattr) (struct dentry *, struct iattr *);
         int (*getattr) (struct vfsmount *mnt, struct dentry *, struct kstat *);
         int (*setxattr) (struct dentry *, const char *,const void *,size_t,int);
@@ -1999,6 +1994,7 @@ struct filename {
         bool                    separate; /* should "name" be freed? */
 };
 
+extern long vfs_truncate(struct path *, loff_t);
 extern int do_truncate(struct dentry *, loff_t start, unsigned int time_attrs,
                        struct file *filp);
 extern int do_fallocate(struct file *file, int mode, loff_t offset,
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index ce31408b1e47..5dfa0aa216b6 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -75,6 +75,16 @@ extern wait_queue_head_t fscache_cache_cleared_wq;
 typedef void (*fscache_operation_release_t)(struct fscache_operation *op);
 typedef void (*fscache_operation_processor_t)(struct fscache_operation *op);
 
+enum fscache_operation_state {
+        FSCACHE_OP_ST_BLANK,            /* Op is not yet submitted */
+        FSCACHE_OP_ST_INITIALISED,      /* Op is initialised */
+        FSCACHE_OP_ST_PENDING,          /* Op is blocked from running */
+        FSCACHE_OP_ST_IN_PROGRESS,      /* Op is in progress */
+        FSCACHE_OP_ST_COMPLETE,         /* Op is complete */
+        FSCACHE_OP_ST_CANCELLED,        /* Op has been cancelled */
+        FSCACHE_OP_ST_DEAD              /* Op is now dead */
+};
+
 struct fscache_operation {
         struct work_struct      work;           /* record for async ops */
         struct list_head        pend_link;      /* link in object->pending_ops */
@@ -86,10 +96,10 @@ struct fscache_operation {
 #define FSCACHE_OP_MYTHREAD     0x0002  /* - processing is done be issuing thread, not pool */
 #define FSCACHE_OP_WAITING      4       /* cleared when op is woken */
 #define FSCACHE_OP_EXCLUSIVE    5       /* exclusive op, other ops must wait */
-#define FSCACHE_OP_DEAD         6       /* op is now dead */
-#define FSCACHE_OP_DEC_READ_CNT 7       /* decrement object->n_reads on destruction */
-#define FSCACHE_OP_KEEP_FLAGS   0xc0    /* flags to keep when repurposing an op */
+#define FSCACHE_OP_DEC_READ_CNT 6       /* decrement object->n_reads on destruction */
+#define FSCACHE_OP_KEEP_FLAGS   0x0070  /* flags to keep when repurposing an op */
 
+        enum fscache_operation_state state;
         atomic_t                usage;
         unsigned                debug_id;       /* debugging ID */
 
@@ -106,6 +116,7 @@ extern atomic_t fscache_op_debug_id;
 extern void fscache_op_work_func(struct work_struct *work);
 
 extern void fscache_enqueue_operation(struct fscache_operation *);
+extern void fscache_op_complete(struct fscache_operation *, bool);
 extern void fscache_put_operation(struct fscache_operation *);
 
 /**
@@ -122,6 +133,7 @@ static inline void fscache_operation_init(struct fscache_operation *op,
 {
         INIT_WORK(&op->work, fscache_op_work_func);
         atomic_set(&op->usage, 1);
+        op->state = FSCACHE_OP_ST_INITIALISED;
         op->debug_id = atomic_inc_return(&fscache_op_debug_id);
         op->processor = processor;
         op->release = release;
@@ -138,6 +150,7 @@ struct fscache_retrieval {
         void                    *context;       /* netfs read context (pinned) */
         struct list_head        to_do;          /* list of things to be done by the backend */
         unsigned long           start_time;     /* time at which retrieval started */
+        unsigned                n_pages;        /* number of pages to be retrieved */
 };
 
 typedef int (*fscache_page_retrieval_func_t)(struct fscache_retrieval *op,
@@ -174,8 +187,22 @@ static inline void fscache_enqueue_retrieval(struct fscache_retrieval *op)
 }
 
 /**
+ * fscache_retrieval_complete - Record (partial) completion of a retrieval
+ * @op: The retrieval operation affected
+ * @n_pages: The number of pages to account for
+ */
+static inline void fscache_retrieval_complete(struct fscache_retrieval *op,
+                                              int n_pages)
+{
+        op->n_pages -= n_pages;
+        if (op->n_pages <= 0)
+                fscache_op_complete(&op->op, true);
+}
+
+/**
  * fscache_put_retrieval - Drop a reference to a retrieval operation
  * @op: The retrieval operation affected
+ * @n_pages: The number of pages to account for
  *
  * Drop a reference to a retrieval operation.
  */
@@ -227,6 +254,9 @@ struct fscache_cache_ops {
         /* store the updated auxiliary data on an object */
         void (*update_object)(struct fscache_object *object);
 
+        /* Invalidate an object */
+        void (*invalidate_object)(struct fscache_operation *op);
+
         /* discard the resources pinned by an object and effect retirement if
          * necessary */
         void (*drop_object)(struct fscache_object *object);
@@ -301,11 +331,30 @@ struct fscache_cookie {
 #define FSCACHE_COOKIE_PENDING_FILL     3       /* T if pending initial fill on object */
 #define FSCACHE_COOKIE_FILLING          4       /* T if filling object incrementally */
 #define FSCACHE_COOKIE_UNAVAILABLE      5       /* T if cookie is unavailable (error, etc) */
+#define FSCACHE_COOKIE_WAITING_ON_READS 6       /* T if cookie is waiting on reads */
+#define FSCACHE_COOKIE_INVALIDATING     7       /* T if cookie is being invalidated */
 };
 
 extern struct fscache_cookie fscache_fsdef_index;
 
 /*
+ * Event list for fscache_object::{event_mask,events}
+ */
+enum {
+        FSCACHE_OBJECT_EV_REQUEUE,      /* T if object should be requeued */
+        FSCACHE_OBJECT_EV_UPDATE,       /* T if object should be updated */
+        FSCACHE_OBJECT_EV_INVALIDATE,   /* T if cache requested object invalidation */
+        FSCACHE_OBJECT_EV_CLEARED,      /* T if accessors all gone */
+        FSCACHE_OBJECT_EV_ERROR,        /* T if fatal error occurred during processing */
+        FSCACHE_OBJECT_EV_RELEASE,      /* T if netfs requested object release */
+        FSCACHE_OBJECT_EV_RETIRE,       /* T if netfs requested object retirement */
+        FSCACHE_OBJECT_EV_WITHDRAW,     /* T if cache requested object withdrawal */
+        NR_FSCACHE_OBJECT_EVENTS
+};
+
+#define FSCACHE_OBJECT_EVENTS_MASK ((1UL << NR_FSCACHE_OBJECT_EVENTS) - 1)
+
+/*
  * on-disk cache file or index handle
  */
 struct fscache_object {
@@ -317,6 +366,7 @@ struct fscache_object {
                 /* active states */
                 FSCACHE_OBJECT_AVAILABLE,       /* cleaning up object after creation */
                 FSCACHE_OBJECT_ACTIVE,          /* object is usable */
+                FSCACHE_OBJECT_INVALIDATING,    /* object is invalidating */
                 FSCACHE_OBJECT_UPDATING,        /* object is updating */
 
                 /* terminal states */
@@ -332,10 +382,10 @@ struct fscache_object {
 
         int                     debug_id;       /* debugging ID */
         int                     n_children;     /* number of child objects */
-        int                     n_ops;          /* number of ops outstanding on object */
+        int                     n_ops;          /* number of extant ops on object */
         int                     n_obj_ops;      /* number of object ops outstanding on object */
         int                     n_in_progress;  /* number of ops in progress */
-        int                     n_exclusive;    /* number of exclusive ops queued */
+        int                     n_exclusive;    /* number of exclusive ops queued or in progress */
         atomic_t                n_reads;        /* number of read ops in progress */
         spinlock_t              lock;           /* state and operations lock */
 
@@ -343,14 +393,6 @@ struct fscache_object {
         unsigned long           event_mask;     /* events this object is interested in */
         unsigned long           events;         /* events to be processed by this object
                                                  * (order is important - using fls) */
-#define FSCACHE_OBJECT_EV_REQUEUE       0       /* T if object should be requeued */
-#define FSCACHE_OBJECT_EV_UPDATE        1       /* T if object should be updated */
-#define FSCACHE_OBJECT_EV_CLEARED       2       /* T if accessors all gone */
-#define FSCACHE_OBJECT_EV_ERROR         3       /* T if fatal error occurred during processing */
-#define FSCACHE_OBJECT_EV_RELEASE       4       /* T if netfs requested object release */
-#define FSCACHE_OBJECT_EV_RETIRE        5       /* T if netfs requested object retirement */
-#define FSCACHE_OBJECT_EV_WITHDRAW      6       /* T if cache requested object withdrawal */
-#define FSCACHE_OBJECT_EVENTS_MASK      0x7f    /* mask of all events*/
 
         unsigned long           flags;
 #define FSCACHE_OBJECT_LOCK             0       /* T if object is busy being processed */
@@ -504,6 +546,9 @@ extern void fscache_withdraw_cache(struct fscache_cache *cache);
 
 extern void fscache_io_error(struct fscache_cache *cache);
 
+extern void fscache_mark_page_cached(struct fscache_retrieval *op,
+                                     struct page *page);
+
 extern void fscache_mark_pages_cached(struct fscache_retrieval *op,
                                       struct pagevec *pagevec);
 
diff --git a/include/linux/fscache.h b/include/linux/fscache.h
index 9ec20dec3353..7a086235da4b 100644
--- a/include/linux/fscache.h
+++ b/include/linux/fscache.h
@@ -135,14 +135,14 @@ struct fscache_cookie_def {
          */
         void (*put_context)(void *cookie_netfs_data, void *context);
 
-        /* indicate pages that now have cache metadata retained
-         * - this function should mark the specified pages as now being cached
-         * - the pages will have been marked with PG_fscache before this is
+        /* indicate page that now have cache metadata retained
+         * - this function should mark the specified page as now being cached
+         * - the page will have been marked with PG_fscache before this is
          *   called, so this is optional
          */
-        void (*mark_pages_cached)(void *cookie_netfs_data,
-                                  struct address_space *mapping,
-                                  struct pagevec *cached_pvec);
+        void (*mark_page_cached)(void *cookie_netfs_data,
+                                 struct address_space *mapping,
+                                 struct page *page);
 
         /* indicate the cookie is no longer cached
          * - this function is called when the backing store currently caching
@@ -185,6 +185,8 @@ extern struct fscache_cookie *__fscache_acquire_cookie(
 extern void __fscache_relinquish_cookie(struct fscache_cookie *, int);
 extern void __fscache_update_cookie(struct fscache_cookie *);
 extern int __fscache_attr_changed(struct fscache_cookie *);
+extern void __fscache_invalidate(struct fscache_cookie *);
+extern void __fscache_wait_on_invalidate(struct fscache_cookie *);
 extern int __fscache_read_or_alloc_page(struct fscache_cookie *,
                                         struct page *,
                                         fscache_rw_complete_t,
@@ -390,6 +392,42 @@ int fscache_attr_changed(struct fscache_cookie *cookie)
 }
 
 /**
+ * fscache_invalidate - Notify cache that an object needs invalidation
+ * @cookie: The cookie representing the cache object
+ *
+ * Notify the cache that an object is needs to be invalidated and that it
+ * should abort any retrievals or stores it is doing on the cache.  The object
+ * is then marked non-caching until such time as the invalidation is complete.
+ *
+ * This can be called with spinlocks held.
+ *
+ * See Documentation/filesystems/caching/netfs-api.txt for a complete
+ * description.
+ */
+static inline
+void fscache_invalidate(struct fscache_cookie *cookie)
+{
+        if (fscache_cookie_valid(cookie))
+                __fscache_invalidate(cookie);
+}
+
+/**
+ * fscache_wait_on_invalidate - Wait for invalidation to complete
+ * @cookie: The cookie representing the cache object
+ *
+ * Wait for the invalidation of an object to complete.
+ *
+ * See Documentation/filesystems/caching/netfs-api.txt for a complete
+ * description.
+ */
+static inline
+void fscache_wait_on_invalidate(struct fscache_cookie *cookie)
+{
+        if (fscache_cookie_valid(cookie))
+                __fscache_wait_on_invalidate(cookie);
+}
+
+/**
  * fscache_reserve_space - Reserve data space for a cached object
  * @cookie: The cookie representing the cache object
  * @i_size: The amount of space to be reserved
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index 63d966d5c2ea..d5b0910d4961 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -88,9 +88,10 @@ struct fsnotify_event_private_data;
  *              if the group is interested in this event.
  * handle_event - main call for a group to handle an fs event
  * free_group_priv - called when a group refcnt hits 0 to clean up the private union
- * freeing-mark - this means that a mark has been flagged to die when everything
- *              finishes using it.  The function is supplied with what must be a
- *              valid group and inode to use to clean up.
+ * freeing_mark - called when a mark is being destroyed for some reason.  The group
+ *              MUST be holding a reference on each mark and that reference must be
+ *              dropped in this function.  inotify uses this function to send
+ *              userspace messages that marks have been removed.
  */
 struct fsnotify_ops {
         bool (*should_send_event)(struct fsnotify_group *group, struct inode *inode,
@@ -141,12 +142,14 @@ struct fsnotify_group {
         unsigned int priority;
 
         /* stores all fastpath marks assoc with this group so they can be cleaned on unregister */
-        spinlock_t mark_lock;           /* protect marks_list */
+        struct mutex mark_mutex;        /* protect marks_list */
         atomic_t num_marks;             /* 1 for each mark and 1 for not being
                                          * past the point of no return when freeing
                                          * a group */
         struct list_head marks_list;    /* all inode marks for this group */
 
+        struct fasync_struct    *fsn_fa;    /* async notification */
+
         /* groups can define private fields here or use the void *private */
         union {
                 void *private;
@@ -155,7 +158,6 @@ struct fsnotify_group {
                         spinlock_t      idr_lock;
                         struct idr      idr;
                         u32             last_wd;
-                        struct fasync_struct    *fa;    /* async notification */
                         struct user_struct      *user;
                 } inotify_data;
 #endif
@@ -287,7 +289,6 @@ struct fsnotify_mark {
                 struct fsnotify_inode_mark i;
                 struct fsnotify_vfsmount_mark m;
         };
-        struct list_head free_g_list;   /* tmp list used when freeing this mark */
         __u32 ignored_mask;             /* events types to ignore */
 #define FSNOTIFY_MARK_FLAG_INODE                0x01
 #define FSNOTIFY_MARK_FLAG_VFSMOUNT             0x02
@@ -360,11 +361,16 @@ static inline void __fsnotify_d_instantiate(struct dentry *dentry, struct inode
 
 /* called from fsnotify listeners, such as fanotify or dnotify */
 
-/* get a reference to an existing or create a new group */
+/* create a new group */
 extern struct fsnotify_group *fsnotify_alloc_group(const struct fsnotify_ops *ops);
+/* get reference to a group */
+extern void fsnotify_get_group(struct fsnotify_group *group);
 /* drop reference on a group from fsnotify_alloc_group */
 extern void fsnotify_put_group(struct fsnotify_group *group);
-
+/* destroy group */
+extern void fsnotify_destroy_group(struct fsnotify_group *group);
+/* fasync handler function */
+extern int fsnotify_fasync(int fd, struct file *file, int on);
 /* take a reference to an event */
 extern void fsnotify_get_event(struct fsnotify_event *event);
 extern void fsnotify_put_event(struct fsnotify_event *event);
@@ -405,8 +411,13 @@ extern void fsnotify_set_mark_mask_locked(struct fsnotify_mark *mark, __u32 mask
 /* attach the mark to both the group and the inode */
 extern int fsnotify_add_mark(struct fsnotify_mark *mark, struct fsnotify_group *group,
                              struct inode *inode, struct vfsmount *mnt, int allow_dups);
-/* given a mark, flag it to be freed when all references are dropped */
-extern void fsnotify_destroy_mark(struct fsnotify_mark *mark);
+extern int fsnotify_add_mark_locked(struct fsnotify_mark *mark, struct fsnotify_group *group,
+                                    struct inode *inode, struct vfsmount *mnt, int allow_dups);
+/* given a group and a mark, flag mark to be freed when all references are dropped */
+extern void fsnotify_destroy_mark(struct fsnotify_mark *mark,
+                                  struct fsnotify_group *group);
+extern void fsnotify_destroy_mark_locked(struct fsnotify_mark *mark,
+                                         struct fsnotify_group *group);
 /* run all the marks in a group, and clear all of the vfsmount marks */
 extern void fsnotify_clear_vfsmount_marks_by_group(struct fsnotify_group *group);
 /* run all the marks in a group, and clear all of the inode marks */
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index d140e8fb075f..c566927efcbd 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -77,13 +77,15 @@
 
 /*
  * Divide positive or negative dividend by positive divisor and round
- * to closest integer. Result is undefined for negative divisors.
+ * to closest integer. Result is undefined for negative divisors and
+ * for negative dividends if the divisor variable type is unsigned.
  */
 #define DIV_ROUND_CLOSEST(x, divisor)(                  \
 {                                                       \
         typeof(x) __x = x;                              \
         typeof(divisor) __d = divisor;                  \
-        (((typeof(x))-1) > 0 || (__x) > 0) ?            \
+        (((typeof(x))-1) > 0 ||                         \
+         ((typeof(divisor))-1) > 0 || (__x) > 0) ?      \
                 (((__x) + ((__d) / 2)) / (__d)) :       \
                 (((__x) - ((__d) / 2)) / (__d));        \
 }                                                       \
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 21821da2abfd..20ea939c22a6 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -625,6 +625,7 @@ struct mlx4_dev {
         u8                      rev_id;
         char                    board_id[MLX4_BOARD_ID_LEN];
         int                     num_vfs;
+        int                     oper_log_mgm_entry_size;
         u64                     regid_promisc_array[MLX4_MAX_PORTS + 1];
         u64                     regid_allmulti_array[MLX4_MAX_PORTS + 1];
 };
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 7f4f906190bd..63204078f72b 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1007,7 +1007,6 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping,
 
 extern void truncate_pagecache(struct inode *inode, loff_t old, loff_t new);
 extern void truncate_setsize(struct inode *inode, loff_t newsize);
-extern int vmtruncate(struct inode *inode, loff_t offset);
 void truncate_pagecache_range(struct inode *inode, loff_t offset, loff_t end);
 int truncate_inode_page(struct address_space *mapping, struct page *page);
 int generic_error_remove_page(struct address_space *mapping, struct page *page);
diff --git a/include/linux/namei.h b/include/linux/namei.h
index 4bf19d8174ed..e998c030061d 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -65,8 +65,8 @@ extern int user_path_at_empty(int, const char __user *, unsigned, struct path *,
 
 extern int kern_path(const char *, unsigned, struct path *);
 
-extern struct dentry *kern_path_create(int, const char *, struct path *, int);
-extern struct dentry *user_path_create(int, const char __user *, struct path *, int);
+extern struct dentry *kern_path_create(int, const char *, struct path *, unsigned int);
+extern struct dentry *user_path_create(int, const char __user *, struct path *, unsigned int);
 extern void done_path_create(struct path *, struct dentry *);
 extern struct dentry *kern_path_locked(const char *, struct path *);
 extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
@@ -98,4 +98,20 @@ static inline void nd_terminate_link(void *name, size_t len, size_t maxlen)
         ((char *) name)[min(len, maxlen)] = '\0';
 }
 
+/**
+ * retry_estale - determine whether the caller should retry an operation
+ * @error: the error that would currently be returned
+ * @flags: flags being used for next lookup attempt
+ *
+ * Check to see if the error code was -ESTALE, and then determine whether
+ * to retry the call based on whether "flags" already has LOOKUP_REVAL set.
+ *
+ * Returns true if the caller should try the operation again.
+ */
+static inline bool
+retry_estale(const long error, const unsigned int flags)
+{
+        return error == -ESTALE && !(flags & LOOKUP_REVAL);
+}
+
 #endif /* _LINUX_NAMEI_H */
diff --git a/include/linux/platform_data/iommu-omap.h b/include/linux/platform_data/iommu-omap.h
index c677b9f2fefa..5b429c43a297 100644
--- a/include/linux/platform_data/iommu-omap.h
+++ b/include/linux/platform_data/iommu-omap.h
@@ -10,6 +10,8 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/platform_device.h>
+
 #define MMU_REG_SIZE            256
 
 /**
@@ -42,8 +44,11 @@ struct omap_mmu_dev_attr {
 
 struct iommu_platform_data {
         const char *name;
-        const char *clk_name;
-        const int nr_tlb_entries;
+        const char *reset_name;
+        int nr_tlb_entries;
         u32 da_start;
         u32 da_end;
+
+        int (*assert_reset)(struct platform_device *pdev, const char *name);
+        int (*deassert_reset)(struct platform_device *pdev, const char *name);
 };
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index addfbe7c180e..1693775ecfe8 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -344,6 +344,10 @@ static inline void user_single_step_siginfo(struct task_struct *tsk,
 #define signal_pt_regs() task_pt_regs(current)
 #endif
 
+#ifndef current_user_stack_pointer
+#define current_user_stack_pointer() user_stack_pointer(current_pt_regs())
+#endif
+
 extern int task_current_syscall(struct task_struct *target, long *callno,
                                 unsigned long args[6], unsigned int maxargs,
                                 unsigned long *sp, unsigned long *pc);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f712465b05c5..206bb089c06b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2353,9 +2353,7 @@ extern int do_execve(const char *,
                      const char __user * const __user *);
 extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *);
 struct task_struct *fork_idle(int);
-#ifdef CONFIG_GENERIC_KERNEL_THREAD
 extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
-#endif
 
 extern void set_task_comm(struct task_struct *tsk, char *from);
 extern char *get_task_comm(char *to, struct task_struct *tsk);
diff --git a/include/linux/signal.h b/include/linux/signal.h
index e19a011b43b7..0a89ffc48466 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -385,4 +385,7 @@ int unhandled_signal(struct task_struct *tsk, int sig);
 
 void signals_init(void);
 
+int restore_altstack(const stack_t __user *);
+int __save_altstack(stack_t __user *, unsigned long);
+
 #endif /* _LINUX_SIGNAL_H */
diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h
index f792794f6634..5dc9ee4d616e 100644
--- a/include/linux/sunrpc/cache.h
+++ b/include/linux/sunrpc/cache.h
@@ -217,6 +217,8 @@ extern int qword_get(char **bpp, char *dest, int bufsize);
 static inline int get_int(char **bpp, int *anint)
 {
         char buf[50];
+        char *ep;
+        int rv;
         int len = qword_get(bpp, buf, sizeof(buf));
 
         if (len < 0)
@@ -224,9 +226,11 @@ static inline int get_int(char **bpp, int *anint)
         if (len == 0)
                 return -ENOENT;
 
-        if (kstrtoint(buf, 0, anint))
+        rv = simple_strtol(buf, &ep, 0);
+        if (*ep)
                 return -EINVAL;
 
+        *anint = rv;
         return 0;
 }
 
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index d83db800fe02..676ddf53b3ee 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -243,6 +243,7 @@ struct svc_rqst {
         struct page *           rq_pages[RPCSVC_MAXPAGES];
         struct page *           *rq_respages;   /* points into rq_pages */
         int                     rq_resused;     /* number of pages used for result */
+        struct page *           *rq_next_page; /* next reply page to use */
 
         struct kvec             rq_vec[RPCSVC_MAXPAGES]; /* generally useful.. */
 
@@ -338,9 +339,8 @@ xdr_ressize_check(struct svc_rqst *rqstp, __be32 *p)
 
 static inline void svc_free_res_pages(struct svc_rqst *rqstp)
 {
-        while (rqstp->rq_resused) {
-                struct page **pp = (rqstp->rq_respages +
-                                    --rqstp->rq_resused);
+        while (rqstp->rq_next_page != rqstp->rq_respages) {
+                struct page **pp = --rqstp->rq_next_page;
                 if (*pp) {
                         put_page(*pp);
                         *pp = NULL;
diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
index 92ad02f0dcc0..62fd1b756e99 100644
--- a/include/linux/sunrpc/svcsock.h
+++ b/include/linux/sunrpc/svcsock.h
@@ -26,11 +26,28 @@ struct svc_sock {
         void                    (*sk_owspace)(struct sock *);
 
         /* private TCP part */
-        u32                     sk_reclen;      /* length of record */
-        u32                     sk_tcplen;      /* current read length */
+        /* On-the-wire fragment header: */
+        __be32                  sk_reclen;
+        /* As we receive a record, this includes the length received so
+         * far (including the fragment header): */
+        u32                     sk_tcplen;
+        /* Total length of the data (not including fragment headers)
+         * received so far in the fragments making up this rpc: */
+        u32                     sk_datalen;
+
         struct page *           sk_pages[RPCSVC_MAXPAGES];      /* received data */
 };
 
+static inline u32 svc_sock_reclen(struct svc_sock *svsk)
+{
+        return ntohl(svsk->sk_reclen) & RPC_FRAGMENT_SIZE_MASK;
+}
+
+static inline u32 svc_sock_final_rec(struct svc_sock *svsk)
+{
+        return ntohl(svsk->sk_reclen) & RPC_LAST_STREAM_FRAGMENT;
+}
+
 /*
  * Function prototypes.
  */
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 6caee34bf8a2..45e2db270255 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -63,6 +63,7 @@ struct getcpu_cache;
 struct old_linux_dirent;
 struct perf_event_attr;
 struct file_handle;
+struct sigaltstack;
 
 #include <linux/types.h>
 #include <linux/aio_abi.h>
@@ -299,6 +300,11 @@ asmlinkage long sys_personality(unsigned int personality);
 asmlinkage long sys_sigpending(old_sigset_t __user *set);
 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
                                 old_sigset_t __user *oset);
+#ifdef CONFIG_GENERIC_SIGALTSTACK
+asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
+                                struct sigaltstack __user *uoss);
+#endif
+
 asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
 asmlinkage long sys_setitimer(int which,
                                 struct itimerval __user *value,
@@ -827,15 +833,6 @@ asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
                                   const char  __user *pathname);
 asmlinkage long sys_syncfs(int fd);
 
-#ifndef CONFIG_GENERIC_KERNEL_EXECVE
-int kernel_execve(const char *filename, const char *const argv[], const char *const envp[]);
-#else
-#define kernel_execve(filename, argv, envp) \
-        do_execve(filename, \
-                (const char __user *const __user *)argv, \
-                (const char __user *const __user *)envp)
-#endif
-
 asmlinkage long sys_fork(void);
 asmlinkage long sys_vfork(void);
 #ifdef CONFIG_CLONE_BACKWARDS
diff --git a/include/uapi/asm-generic/signal.h b/include/uapi/asm-generic/signal.h
index 0a78028984de..6fae30fd16ab 100644
--- a/include/uapi/asm-generic/signal.h
+++ b/include/uapi/asm-generic/signal.h
@@ -80,12 +80,6 @@
  *      SA_RESTORER     0x04000000
  */
 
-/*
- * sigaltstack controls
- */
-#define SS_ONSTACK      1
-#define SS_DISABLE      2
-
 #define MINSIGSTKSZ     2048
 #define SIGSTKSZ        8192
 
diff --git a/include/uapi/linux/dm-ioctl.h b/include/uapi/linux/dm-ioctl.h
index 91e3a360f611..539b179b349c 100644
--- a/include/uapi/linux/dm-ioctl.h
+++ b/include/uapi/linux/dm-ioctl.h
@@ -268,8 +268,8 @@ enum {
 
 #define DM_VERSION_MAJOR        4
 #define DM_VERSION_MINOR        23
-#define DM_VERSION_PATCHLEVEL   0
-#define DM_VERSION_EXTRA        "-ioctl (2012-07-25)"
+#define DM_VERSION_PATCHLEVEL   1
+#define DM_VERSION_EXTRA        "-ioctl (2012-12-18)"
 
 /* Status bits */
 #define DM_READONLY_FLAG        (1 << 0) /* In/Out */
diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
index 12f68c7ceba6..873e086ce3a1 100644
--- a/include/uapi/linux/magic.h
+++ b/include/uapi/linux/magic.h
@@ -23,6 +23,7 @@
 #define EXT4_SUPER_MAGIC        0xEF53
 #define BTRFS_SUPER_MAGIC       0x9123683E
 #define NILFS_SUPER_MAGIC       0x3434
+#define F2FS_SUPER_MAGIC        0xF2F52010
 #define HPFS_SUPER_MAGIC        0xf995e849
 #define ISOFS_SUPER_MAGIC       0x9660
 #define JFFS2_SUPER_MAGIC       0x72b6
diff --git a/include/uapi/linux/signal.h b/include/uapi/linux/signal.h
index dff452ed6d00..e1bd50c29ded 100644
--- a/include/uapi/linux/signal.h
+++ b/include/uapi/linux/signal.h
@@ -4,5 +4,7 @@
 #include <asm/signal.h>
 #include <asm/siginfo.h>
 
+#define SS_ONSTACK      1
+#define SS_DISABLE      2
 
 #endif /* _UAPI_LINUX_SIGNAL_H */