36 files changed, 906 insertions, 132 deletions

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 41f7ce7edd7a..0601075d09a1 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -82,6 +82,7 @@ char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
 int early_acpi_boot_init(void);
 int acpi_boot_init (void);
 int acpi_boot_table_init (void);
+int acpi_mps_check (void);
 int acpi_numa_init (void);
 
 int acpi_table_init (void);
@@ -250,6 +251,11 @@ static inline int acpi_boot_table_init(void)
         return 0;
 }
 
+static inline int acpi_mps_check(void)
+{
+        return 0;
+}
+
 static inline int acpi_check_resource_conflict(struct resource *res)
 {
         return 0;
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 61c15eaf3fb3..0933a14e6414 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -64,6 +64,7 @@ struct bio_vec {
 
 struct bio_set;
 struct bio;
+struct bio_integrity_payload;
 typedef void (bio_end_io_t) (struct bio *, int);
 typedef void (bio_destructor_t) (struct bio *);
 
@@ -112,6 +113,9 @@ struct bio {
         atomic_t                bi_cnt;         /* pin count */
 
         void                    *bi_private;
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+        struct bio_integrity_payload *bi_integrity;  /* data integrity */
+#endif
 
         bio_destructor_t        *bi_destructor; /* destructor */
 };
@@ -271,6 +275,29 @@ static inline void *bio_data(struct bio *bio)
  */
 #define bio_get(bio)    atomic_inc(&(bio)->bi_cnt)
 
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+/*
+ * bio integrity payload
+ */
+struct bio_integrity_payload {
+        struct bio              *bip_bio;       /* parent bio */
+        struct bio_vec          *bip_vec;       /* integrity data vector */
+
+        sector_t                bip_sector;     /* virtual start sector */
+
+        void                    *bip_buf;       /* generated integrity data */
+        bio_end_io_t            *bip_end_io;    /* saved I/O completion fn */
+
+        int                     bip_error;      /* saved I/O error */
+        unsigned int            bip_size;
+
+        unsigned short          bip_pool;       /* pool the ivec came from */
+        unsigned short          bip_vcnt;       /* # of integrity bio_vecs */
+        unsigned short          bip_idx;        /* current bip_vec index */
+
+        struct work_struct      bip_work;       /* I/O completion */
+};
+#endif /* CONFIG_BLK_DEV_INTEGRITY */
 
 /*
  * A bio_pair is used when we need to split a bio.
@@ -283,10 +310,14 @@ static inline void *bio_data(struct bio *bio)
  *   in bio2.bi_private
  */
 struct bio_pair {
-        struct bio      bio1, bio2;
-        struct bio_vec  bv1, bv2;
-        atomic_t        cnt;
-        int             error;
+        struct bio                      bio1, bio2;
+        struct bio_vec                  bv1, bv2;
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+        struct bio_integrity_payload    bip1, bip2;
+        struct bio_vec                  iv1, iv2;
+#endif
+        atomic_t                        cnt;
+        int                             error;
 };
 extern struct bio_pair *bio_split(struct bio *bi, mempool_t *pool,
                                   int first_sectors);
@@ -333,6 +364,39 @@ extern struct bio *bio_copy_user_iov(struct request_queue *, struct sg_iovec *,
                                      int, int);
 extern int bio_uncopy_user(struct bio *);
 void zero_fill_bio(struct bio *bio);
+extern struct bio_vec *bvec_alloc_bs(gfp_t, int, unsigned long *, struct bio_set *);
+extern unsigned int bvec_nr_vecs(unsigned short idx);
+
+/*
+ * bio_set is used to allow other portions of the IO system to
+ * allocate their own private memory pools for bio and iovec structures.
+ * These memory pools in turn all allocate from the bio_slab
+ * and the bvec_slabs[].
+ */
+#define BIO_POOL_SIZE 2
+#define BIOVEC_NR_POOLS 6
+
+struct bio_set {
+        mempool_t *bio_pool;
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+        mempool_t *bio_integrity_pool;
+#endif
+        mempool_t *bvec_pools[BIOVEC_NR_POOLS];
+};
+
+struct biovec_slab {
+        int nr_vecs;
+        char *name;
+        struct kmem_cache *slab;
+};
+
+extern struct bio_set *fs_bio_set;
+
+/*
+ * a small number of entries is fine, not going to be performance critical.
+ * basically we just need to survive
+ */
+#define BIO_SPLIT_ENTRIES 2
 
 #ifdef CONFIG_HIGHMEM
 /*
@@ -381,5 +445,63 @@ static inline char *__bio_kmap_irq(struct bio *bio, unsigned short idx,
         __bio_kmap_irq((bio), (bio)->bi_idx, (flags))
 #define bio_kunmap_irq(buf,flags)       __bio_kunmap_irq(buf, flags)
 
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+
+#define bip_vec_idx(bip, idx)   (&(bip->bip_vec[(idx)]))
+#define bip_vec(bip)            bip_vec_idx(bip, 0)
+
+#define __bip_for_each_vec(bvl, bip, i, start_idx)                      \
+        for (bvl = bip_vec_idx((bip), (start_idx)), i = (start_idx);    \
+             i < (bip)->bip_vcnt;                                       \
+             bvl++, i++)
+
+#define bip_for_each_vec(bvl, bip, i)                                   \
+        __bip_for_each_vec(bvl, bip, i, (bip)->bip_idx)
+
+static inline int bio_integrity(struct bio *bio)
+{
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+        return bio->bi_integrity != NULL;
+#else
+        return 0;
+#endif
+}
+
+extern struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *, gfp_t, unsigned int, struct bio_set *);
+extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int);
+extern void bio_integrity_free(struct bio *, struct bio_set *);
+extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int);
+extern int bio_integrity_enabled(struct bio *bio);
+extern int bio_integrity_set_tag(struct bio *, void *, unsigned int);
+extern int bio_integrity_get_tag(struct bio *, void *, unsigned int);
+extern int bio_integrity_prep(struct bio *);
+extern void bio_integrity_endio(struct bio *, int);
+extern void bio_integrity_advance(struct bio *, unsigned int);
+extern void bio_integrity_trim(struct bio *, unsigned int, unsigned int);
+extern void bio_integrity_split(struct bio *, struct bio_pair *, int);
+extern int bio_integrity_clone(struct bio *, struct bio *, struct bio_set *);
+extern int bioset_integrity_create(struct bio_set *, int);
+extern void bioset_integrity_free(struct bio_set *);
+extern void bio_integrity_init_slab(void);
+
+#else /* CONFIG_BLK_DEV_INTEGRITY */
+
+#define bio_integrity(a)                (0)
+#define bioset_integrity_create(a, b)   (0)
+#define bio_integrity_prep(a)           (0)
+#define bio_integrity_enabled(a)        (0)
+#define bio_integrity_clone(a, b, c)    (0)
+#define bioset_integrity_free(a)        do { } while (0)
+#define bio_integrity_free(a, b)        do { } while (0)
+#define bio_integrity_endio(a, b)       do { } while (0)
+#define bio_integrity_advance(a, b)     do { } while (0)
+#define bio_integrity_trim(a, b, c)     do { } while (0)
+#define bio_integrity_split(a, b, c)    do { } while (0)
+#define bio_integrity_set_tag(a, b, c)  do { } while (0)
+#define bio_integrity_get_tag(a, b, c)  do { } while (0)
+#define bio_integrity_init_slab(a)      do { } while (0)
+
+#endif /* CONFIG_BLK_DEV_INTEGRITY */
+
 #endif /* CONFIG_BLOCK */
 #endif /* __LINUX_BIO_H */
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index d2a1b71e93c3..1ffd8bfdc4c9 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -23,7 +23,6 @@
 struct scsi_ioctl_command;
 
 struct request_queue;
-typedef struct request_queue request_queue_t __deprecated;
 struct elevator_queue;
 typedef struct elevator_queue elevator_t;
 struct request_pm_state;
@@ -34,12 +33,6 @@ struct sg_io_hdr;
 #define BLKDEV_MIN_RQ   4
 #define BLKDEV_MAX_RQ   128     /* Default maximum */
 
-int put_io_context(struct io_context *ioc);
-void exit_io_context(void);
-struct io_context *get_io_context(gfp_t gfp_flags, int node);
-struct io_context *alloc_io_context(gfp_t gfp_flags, int node);
-void copy_io_context(struct io_context **pdst, struct io_context **psrc);
-
 struct request;
 typedef void (rq_end_io_fn)(struct request *, int);
 
@@ -113,6 +106,7 @@ enum rq_flag_bits {
         __REQ_ALLOCED,          /* request came from our alloc pool */
         __REQ_RW_META,          /* metadata io request */
         __REQ_COPY_USER,        /* contains copies of user pages */
+        __REQ_INTEGRITY,        /* integrity metadata has been remapped */
         __REQ_NR_BITS,          /* stops here */
 };
 
@@ -135,6 +129,7 @@ enum rq_flag_bits {
 #define REQ_ALLOCED     (1 << __REQ_ALLOCED)
 #define REQ_RW_META     (1 << __REQ_RW_META)
 #define REQ_COPY_USER   (1 << __REQ_COPY_USER)
+#define REQ_INTEGRITY   (1 << __REQ_INTEGRITY)
 
 #define BLK_MAX_CDB     16
 
@@ -259,7 +254,14 @@ typedef int (prep_rq_fn) (struct request_queue *, struct request *);
 typedef void (unplug_fn) (struct request_queue *);
 
 struct bio_vec;
-typedef int (merge_bvec_fn) (struct request_queue *, struct bio *, struct bio_vec *);
+struct bvec_merge_data {
+        struct block_device *bi_bdev;
+        sector_t bi_sector;
+        unsigned bi_size;
+        unsigned long bi_rw;
+};
+typedef int (merge_bvec_fn) (struct request_queue *, struct bvec_merge_data *,
+                             struct bio_vec *);
 typedef void (prepare_flush_fn) (struct request_queue *, struct request *);
 typedef void (softirq_done_fn)(struct request *);
 typedef int (dma_drain_needed_fn)(struct request *);
@@ -426,6 +428,32 @@ static inline void queue_flag_set_unlocked(unsigned int flag,
         __set_bit(flag, &q->queue_flags);
 }
 
+static inline int queue_flag_test_and_clear(unsigned int flag,
+                                            struct request_queue *q)
+{
+        WARN_ON_ONCE(!queue_is_locked(q));
+
+        if (test_bit(flag, &q->queue_flags)) {
+                __clear_bit(flag, &q->queue_flags);
+                return 1;
+        }
+
+        return 0;
+}
+
+static inline int queue_flag_test_and_set(unsigned int flag,
+                                          struct request_queue *q)
+{
+        WARN_ON_ONCE(!queue_is_locked(q));
+
+        if (!test_bit(flag, &q->queue_flags)) {
+                __set_bit(flag, &q->queue_flags);
+                return 0;
+        }
+
+        return 1;
+}
+
 static inline void queue_flag_set(unsigned int flag, struct request_queue *q)
 {
         WARN_ON_ONCE(!queue_is_locked(q));
@@ -676,7 +704,6 @@ extern int blk_execute_rq(struct request_queue *, struct gendisk *,
                           struct request *, int);
 extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *,
                                   struct request *, int, rq_end_io_fn *);
-extern int blk_verify_command(unsigned char *, int);
 extern void blk_unplug(struct request_queue *q);
 
 static inline struct request_queue *bdev_get_queue(struct block_device *bdev)
@@ -749,6 +776,7 @@ extern void blk_queue_max_segment_size(struct request_queue *, unsigned int);
 extern void blk_queue_hardsect_size(struct request_queue *, unsigned short);
 extern void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b);
 extern void blk_queue_dma_pad(struct request_queue *, unsigned int);
+extern void blk_queue_update_dma_pad(struct request_queue *, unsigned int);
 extern int blk_queue_dma_drain(struct request_queue *q,
                                dma_drain_needed_fn *dma_drain_needed,
                                void *buf, unsigned int size);
@@ -802,6 +830,15 @@ static inline struct request *blk_map_queue_find_tag(struct blk_queue_tag *bqt,
 
 extern int blkdev_issue_flush(struct block_device *, sector_t *);
 
+/*
+* command filter functions
+*/
+extern int blk_verify_command(struct file *file, unsigned char *cmd);
+extern int blk_cmd_filter_verify_command(struct blk_scsi_cmd_filter *filter,
+                                         unsigned char *cmd, mode_t *f_mode);
+extern int blk_register_filter(struct gendisk *disk);
+extern void blk_unregister_filter(struct gendisk *disk);
+
 #define MAX_PHYS_SEGMENTS 128
 #define MAX_HW_SEGMENTS 128
 #define SAFE_MAX_SECTORS 255
@@ -865,28 +902,116 @@ void kblockd_flush_work(struct work_struct *work);
 #define MODULE_ALIAS_BLOCKDEV_MAJOR(major) \
         MODULE_ALIAS("block-major-" __stringify(major) "-*")
 
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
 
-#else /* CONFIG_BLOCK */
-/*
- * stubs for when the block layer is configured out
- */
-#define buffer_heads_over_limit 0
+#define INTEGRITY_FLAG_READ     2       /* verify data integrity on read */
+#define INTEGRITY_FLAG_WRITE    4       /* generate data integrity on write */
 
-static inline long nr_blockdev_pages(void)
+struct blk_integrity_exchg {
+        void                    *prot_buf;
+        void                    *data_buf;
+        sector_t                sector;
+        unsigned int            data_size;
+        unsigned short          sector_size;
+        const char              *disk_name;
+};
+
+typedef void (integrity_gen_fn) (struct blk_integrity_exchg *);
+typedef int (integrity_vrfy_fn) (struct blk_integrity_exchg *);
+typedef void (integrity_set_tag_fn) (void *, void *, unsigned int);
+typedef void (integrity_get_tag_fn) (void *, void *, unsigned int);
+
+struct blk_integrity {
+        integrity_gen_fn        *generate_fn;
+        integrity_vrfy_fn       *verify_fn;
+        integrity_set_tag_fn    *set_tag_fn;
+        integrity_get_tag_fn    *get_tag_fn;
+
+        unsigned short          flags;
+        unsigned short          tuple_size;
+        unsigned short          sector_size;
+        unsigned short          tag_size;
+
+        const char              *name;
+
+        struct kobject          kobj;
+};
+
+extern int blk_integrity_register(struct gendisk *, struct blk_integrity *);
+extern void blk_integrity_unregister(struct gendisk *);
+extern int blk_integrity_compare(struct block_device *, struct block_device *);
+extern int blk_rq_map_integrity_sg(struct request *, struct scatterlist *);
+extern int blk_rq_count_integrity_sg(struct request *);
+
+static inline unsigned short blk_integrity_tuple_size(struct blk_integrity *bi)
 {
+        if (bi)
+                return bi->tuple_size;
+
         return 0;
 }
 
-static inline void exit_io_context(void)
+static inline struct blk_integrity *bdev_get_integrity(struct block_device *bdev)
 {
+        return bdev->bd_disk->integrity;
 }
 
-struct io_context;
-static inline int put_io_context(struct io_context *ioc)
+static inline unsigned int bdev_get_tag_size(struct block_device *bdev)
 {
-        return 1;
+        struct blk_integrity *bi = bdev_get_integrity(bdev);
+
+        if (bi)
+                return bi->tag_size;
+
+        return 0;
+}
+
+static inline int bdev_integrity_enabled(struct block_device *bdev, int rw)
+{
+        struct blk_integrity *bi = bdev_get_integrity(bdev);
+
+        if (bi == NULL)
+                return 0;
+
+        if (rw == READ && bi->verify_fn != NULL &&
+            (bi->flags & INTEGRITY_FLAG_READ))
+                return 1;
+
+        if (rw == WRITE && bi->generate_fn != NULL &&
+            (bi->flags & INTEGRITY_FLAG_WRITE))
+                return 1;
+
+        return 0;
 }
 
+static inline int blk_integrity_rq(struct request *rq)
+{
+        return bio_integrity(rq->bio);
+}
+
+#else /* CONFIG_BLK_DEV_INTEGRITY */
+
+#define blk_integrity_rq(rq)                    (0)
+#define blk_rq_count_integrity_sg(a)            (0)
+#define blk_rq_map_integrity_sg(a, b)           (0)
+#define bdev_get_integrity(a)                   (0)
+#define bdev_get_tag_size(a)                    (0)
+#define blk_integrity_compare(a, b)             (0)
+#define blk_integrity_register(a, b)            (0)
+#define blk_integrity_unregister(a)             do { } while (0);
+
+#endif /* CONFIG_BLK_DEV_INTEGRITY */
+
+#else /* CONFIG_BLOCK */
+/*
+ * stubs for when the block layer is configured out
+ */
+#define buffer_heads_over_limit 0
+
+static inline long nr_blockdev_pages(void)
+{
+        return 0;
+}
 
 #endif /* CONFIG_BLOCK */
 
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index e3ef903aae88..d084b8d227a5 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -129,6 +129,7 @@ struct blk_trace {
         u32 dev;
         struct dentry *dir;
         struct dentry *dropped_file;
+        struct dentry *msg_file;
         atomic_t dropped;
 };
 
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 686895bacd9d..a1d9b79078ea 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -84,6 +84,8 @@ extern int reserve_bootmem(unsigned long addr, unsigned long size, int flags);
         __alloc_bootmem_low(x, PAGE_SIZE, 0)
 #endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */
 
+extern int reserve_bootmem_generic(unsigned long addr, unsigned long size,
+                                   int flags);
 extern unsigned long free_all_bootmem(void);
 extern unsigned long free_all_bootmem_node(pg_data_t *pgdat);
 extern void *__alloc_bootmem_node(pg_data_t *pgdat,
diff --git a/include/linux/console.h b/include/linux/console.h
index a4f27fbdf549..248e6e3b9b73 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -108,6 +108,8 @@ struct console {
         struct   console *next;
 };
 
+extern int console_set_on_cmdline;
+
 extern int add_preferred_console(char *name, int idx, char *options);
 extern int update_console_cmdline(char *name, int idx, char *name_new, int idx_new, char *options);
 extern void register_console(struct console *);
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 425824bd49f3..c43dc47fdf75 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -30,15 +30,17 @@
  */
 #define CRYPTO_ALG_TYPE_MASK            0x0000000f
 #define CRYPTO_ALG_TYPE_CIPHER          0x00000001
-#define CRYPTO_ALG_TYPE_DIGEST          0x00000002
-#define CRYPTO_ALG_TYPE_HASH            0x00000003
+#define CRYPTO_ALG_TYPE_COMPRESS        0x00000002
+#define CRYPTO_ALG_TYPE_AEAD            0x00000003
 #define CRYPTO_ALG_TYPE_BLKCIPHER       0x00000004
 #define CRYPTO_ALG_TYPE_ABLKCIPHER      0x00000005
 #define CRYPTO_ALG_TYPE_GIVCIPHER       0x00000006
-#define CRYPTO_ALG_TYPE_COMPRESS        0x00000008
-#define CRYPTO_ALG_TYPE_AEAD            0x00000009
+#define CRYPTO_ALG_TYPE_DIGEST          0x00000008
+#define CRYPTO_ALG_TYPE_HASH            0x00000009
+#define CRYPTO_ALG_TYPE_AHASH           0x0000000a
 
 #define CRYPTO_ALG_TYPE_HASH_MASK       0x0000000e
+#define CRYPTO_ALG_TYPE_AHASH_MASK      0x0000000c
 #define CRYPTO_ALG_TYPE_BLKCIPHER_MASK  0x0000000c
 
 #define CRYPTO_ALG_LARVAL               0x00000010
@@ -102,6 +104,7 @@ struct crypto_async_request;
 struct crypto_aead;
 struct crypto_blkcipher;
 struct crypto_hash;
+struct crypto_ahash;
 struct crypto_tfm;
 struct crypto_type;
 struct aead_givcrypt_request;
@@ -131,6 +134,16 @@ struct ablkcipher_request {
         void *__ctx[] CRYPTO_MINALIGN_ATTR;
 };
 
+struct ahash_request {
+        struct crypto_async_request base;
+
+        unsigned int nbytes;
+        struct scatterlist *src;
+        u8                 *result;
+
+        void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
 /**
  *      struct aead_request - AEAD request
  *      @base: Common attributes for async crypto requests
@@ -195,6 +208,17 @@ struct ablkcipher_alg {
         unsigned int ivsize;
 };
 
+struct ahash_alg {
+        int (*init)(struct ahash_request *req);
+        int (*update)(struct ahash_request *req);
+        int (*final)(struct ahash_request *req);
+        int (*digest)(struct ahash_request *req);
+        int (*setkey)(struct crypto_ahash *tfm, const u8 *key,
+                        unsigned int keylen);
+
+        unsigned int digestsize;
+};
+
 struct aead_alg {
         int (*setkey)(struct crypto_aead *tfm, const u8 *key,
                       unsigned int keylen);
@@ -272,6 +296,7 @@ struct compress_alg {
 #define cra_cipher      cra_u.cipher
 #define cra_digest      cra_u.digest
 #define cra_hash        cra_u.hash
+#define cra_ahash       cra_u.ahash
 #define cra_compress    cra_u.compress
 
 struct crypto_alg {
@@ -298,6 +323,7 @@ struct crypto_alg {
                 struct cipher_alg cipher;
                 struct digest_alg digest;
                 struct hash_alg hash;
+                struct ahash_alg ahash;
                 struct compress_alg compress;
         } cra_u;
 
@@ -383,6 +409,18 @@ struct hash_tfm {
         unsigned int digestsize;
 };
 
+struct ahash_tfm {
+        int (*init)(struct ahash_request *req);
+        int (*update)(struct ahash_request *req);
+        int (*final)(struct ahash_request *req);
+        int (*digest)(struct ahash_request *req);
+        int (*setkey)(struct crypto_ahash *tfm, const u8 *key,
+                        unsigned int keylen);
+
+        unsigned int digestsize;
+        unsigned int reqsize;
+};
+
 struct compress_tfm {
         int (*cot_compress)(struct crypto_tfm *tfm,
                             const u8 *src, unsigned int slen,
@@ -397,6 +435,7 @@ struct compress_tfm {
 #define crt_blkcipher   crt_u.blkcipher
 #define crt_cipher      crt_u.cipher
 #define crt_hash        crt_u.hash
+#define crt_ahash       crt_u.ahash
 #define crt_compress    crt_u.compress
 
 struct crypto_tfm {
@@ -409,6 +448,7 @@ struct crypto_tfm {
                 struct blkcipher_tfm blkcipher;
                 struct cipher_tfm cipher;
                 struct hash_tfm hash;
+                struct ahash_tfm ahash;
                 struct compress_tfm compress;
         } crt_u;
         
diff --git a/include/linux/delay.h b/include/linux/delay.h
index 54552d21296e..fd832c6d419e 100644
--- a/include/linux/delay.h
+++ b/include/linux/delay.h
@@ -41,6 +41,7 @@ static inline void ndelay(unsigned long x)
 #define ndelay(x) ndelay(x)
 #endif
 
+extern unsigned long lpj_fine;
 void calibrate_delay(void);
 void msleep(unsigned int msecs);
 unsigned long msleep_interruptible(unsigned int msecs);
diff --git a/include/linux/efi.h b/include/linux/efi.h
index a5f359a7ad0e..807373d467f7 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -287,7 +287,6 @@ efi_guid_unparse(efi_guid_t *guid, char *out)
 extern void efi_init (void);
 extern void *efi_get_pal_addr (void);
 extern void efi_map_pal_code (void);
-extern void efi_map_memmap(void);
 extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg);
 extern void efi_gettimeofday (struct timespec *ts);
 extern void efi_enter_virtual_mode (void);      /* switch EFI to virtual mode, if possible */
@@ -295,14 +294,11 @@ extern u64 efi_get_iobase (void);
 extern u32 efi_mem_type (unsigned long phys_addr);
 extern u64 efi_mem_attributes (unsigned long phys_addr);
 extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size);
-extern int efi_mem_attribute_range (unsigned long phys_addr, unsigned long size,
-                                    u64 attr);
 extern int __init efi_uart_console_only (void);
 extern void efi_initialize_iomem_resources(struct resource *code_resource,
                 struct resource *data_resource, struct resource *bss_resource);
 extern unsigned long efi_get_time(void);
 extern int efi_set_rtc_mmss(unsigned long nowtime);
-extern int is_available_memory(efi_memory_desc_t * md);
 extern struct efi_memory_map memmap;
 
 /**
diff --git a/include/linux/firmware-map.h b/include/linux/firmware-map.h
new file mode 100644
index 000000000000..acbdbcc16051
--- /dev/null
+++ b/include/linux/firmware-map.h
@@ -0,0 +1,74 @@
+/*
+ * include/linux/firmware-map.h:
+ *  Copyright (C) 2008 SUSE LINUX Products GmbH
+ *  by Bernhard Walle <bwalle@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2.0 as published by
+ * the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#ifndef _LINUX_FIRMWARE_MAP_H
+#define _LINUX_FIRMWARE_MAP_H
+
+#include <linux/list.h>
+#include <linux/kobject.h>
+
+/*
+ * provide a dummy interface if CONFIG_FIRMWARE_MEMMAP is disabled
+ */
+#ifdef CONFIG_FIRMWARE_MEMMAP
+
+/**
+ * Adds a firmware mapping entry. This function uses kmalloc() for memory
+ * allocation. Use firmware_map_add_early() if you want to use the bootmem
+ * allocator.
+ *
+ * That function must be called before late_initcall.
+ *
+ * @start: Start of the memory range.
+ * @end:   End of the memory range (inclusive).
+ * @type:  Type of the memory range.
+ *
+ * Returns 0 on success, or -ENOMEM if no memory could be allocated.
+ */
+int firmware_map_add(resource_size_t start, resource_size_t end,
+                     const char *type);
+
+/**
+ * Adds a firmware mapping entry. This function uses the bootmem allocator
+ * for memory allocation. Use firmware_map_add() if you want to use kmalloc().
+ *
+ * That function must be called before late_initcall.
+ *
+ * @start: Start of the memory range.
+ * @end:   End of the memory range (inclusive).
+ * @type:  Type of the memory range.
+ *
+ * Returns 0 on success, or -ENOMEM if no memory could be allocated.
+ */
+int firmware_map_add_early(resource_size_t start, resource_size_t end,
+                           const char *type);
+
+#else /* CONFIG_FIRMWARE_MEMMAP */
+
+static inline int firmware_map_add(resource_size_t start, resource_size_t end,
+                                   const char *type)
+{
+        return 0;
+}
+
+static inline int firmware_map_add_early(resource_size_t start,
+                                         resource_size_t end, const char *type)
+{
+        return 0;
+}
+
+#endif /* CONFIG_FIRMWARE_MEMMAP */
+
+#endif /* _LINUX_FIRMWARE_MAP_H */
diff --git a/include/linux/fs.h b/include/linux/fs.h
index d8e2762ed14d..faac13e2cc5c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1870,7 +1870,8 @@ extern void
 file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping);
 extern loff_t no_llseek(struct file *file, loff_t offset, int origin);
 extern loff_t generic_file_llseek(struct file *file, loff_t offset, int origin);
-extern loff_t remote_llseek(struct file *file, loff_t offset, int origin);
+extern loff_t generic_file_llseek_unlocked(struct file *file, loff_t offset,
+                        int origin);
 extern int generic_file_open(struct inode * inode, struct file * filp);
 extern int nonseekable_open(struct inode * inode, struct file * filp);
 
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
new file mode 100644
index 000000000000..f368d041e02d
--- /dev/null
+++ b/include/linux/ftrace.h
@@ -0,0 +1,144 @@
+#ifndef _LINUX_FTRACE_H
+#define _LINUX_FTRACE_H
+
+#ifdef CONFIG_FTRACE
+
+#include <linux/linkage.h>
+#include <linux/fs.h>
+
+extern int ftrace_enabled;
+extern int
+ftrace_enable_sysctl(struct ctl_table *table, int write,
+                     struct file *filp, void __user *buffer, size_t *lenp,
+                     loff_t *ppos);
+
+typedef void (*ftrace_func_t)(unsigned long ip, unsigned long parent_ip);
+
+struct ftrace_ops {
+        ftrace_func_t     func;
+        struct ftrace_ops *next;
+};
+
+/*
+ * The ftrace_ops must be a static and should also
+ * be read_mostly.  These functions do modify read_mostly variables
+ * so use them sparely. Never free an ftrace_op or modify the
+ * next pointer after it has been registered. Even after unregistering
+ * it, the next pointer may still be used internally.
+ */
+int register_ftrace_function(struct ftrace_ops *ops);
+int unregister_ftrace_function(struct ftrace_ops *ops);
+void clear_ftrace_function(void);
+
+extern void ftrace_stub(unsigned long a0, unsigned long a1);
+
+#else /* !CONFIG_FTRACE */
+# define register_ftrace_function(ops) do { } while (0)
+# define unregister_ftrace_function(ops) do { } while (0)
+# define clear_ftrace_function(ops) do { } while (0)
+#endif /* CONFIG_FTRACE */
+
+#ifdef CONFIG_DYNAMIC_FTRACE
+# define FTRACE_HASHBITS        10
+# define FTRACE_HASHSIZE        (1<<FTRACE_HASHBITS)
+
+enum {
+        FTRACE_FL_FREE          = (1 << 0),
+        FTRACE_FL_FAILED        = (1 << 1),
+        FTRACE_FL_FILTER        = (1 << 2),
+        FTRACE_FL_ENABLED       = (1 << 3),
+        FTRACE_FL_NOTRACE       = (1 << 4),
+        FTRACE_FL_CONVERTED     = (1 << 5),
+        FTRACE_FL_FROZEN        = (1 << 6),
+};
+
+struct dyn_ftrace {
+        struct hlist_node node;
+        unsigned long     ip; /* address of mcount call-site */
+        unsigned long     flags;
+};
+
+int ftrace_force_update(void);
+void ftrace_set_filter(unsigned char *buf, int len, int reset);
+
+/* defined in arch */
+extern int ftrace_ip_converted(unsigned long ip);
+extern unsigned char *ftrace_nop_replace(void);
+extern unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr);
+extern int ftrace_dyn_arch_init(void *data);
+extern int ftrace_mcount_set(unsigned long *data);
+extern int ftrace_modify_code(unsigned long ip, unsigned char *old_code,
+                              unsigned char *new_code);
+extern int ftrace_update_ftrace_func(ftrace_func_t func);
+extern void ftrace_caller(void);
+extern void ftrace_call(void);
+extern void mcount_call(void);
+
+extern int skip_trace(unsigned long ip);
+
+void ftrace_disable_daemon(void);
+void ftrace_enable_daemon(void);
+
+#else
+# define skip_trace(ip)                         ({ 0; })
+# define ftrace_force_update()                  ({ 0; })
+# define ftrace_set_filter(buf, len, reset)     do { } while (0)
+# define ftrace_disable_daemon()                do { } while (0)
+# define ftrace_enable_daemon()                 do { } while (0)
+#endif /* CONFIG_DYNAMIC_FTRACE */
+
+/* totally disable ftrace - can not re-enable after this */
+void ftrace_kill(void);
+void ftrace_kill_atomic(void);
+
+static inline void tracer_disable(void)
+{
+#ifdef CONFIG_FTRACE
+        ftrace_enabled = 0;
+#endif
+}
+
+#ifdef CONFIG_FRAME_POINTER
+/* TODO: need to fix this for ARM */
+# define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))
+# define CALLER_ADDR1 ((unsigned long)__builtin_return_address(1))
+# define CALLER_ADDR2 ((unsigned long)__builtin_return_address(2))
+# define CALLER_ADDR3 ((unsigned long)__builtin_return_address(3))
+# define CALLER_ADDR4 ((unsigned long)__builtin_return_address(4))
+# define CALLER_ADDR5 ((unsigned long)__builtin_return_address(5))
+# define CALLER_ADDR6 ((unsigned long)__builtin_return_address(6))
+#else
+# define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))
+# define CALLER_ADDR1 0UL
+# define CALLER_ADDR2 0UL
+# define CALLER_ADDR3 0UL
+# define CALLER_ADDR4 0UL
+# define CALLER_ADDR5 0UL
+# define CALLER_ADDR6 0UL
+#endif
+
+#ifdef CONFIG_IRQSOFF_TRACER
+  extern void time_hardirqs_on(unsigned long a0, unsigned long a1);
+  extern void time_hardirqs_off(unsigned long a0, unsigned long a1);
+#else
+# define time_hardirqs_on(a0, a1)               do { } while (0)
+# define time_hardirqs_off(a0, a1)              do { } while (0)
+#endif
+
+#ifdef CONFIG_PREEMPT_TRACER
+  extern void trace_preempt_on(unsigned long a0, unsigned long a1);
+  extern void trace_preempt_off(unsigned long a0, unsigned long a1);
+#else
+# define trace_preempt_on(a0, a1)               do { } while (0)
+# define trace_preempt_off(a0, a1)              do { } while (0)
+#endif
+
+#ifdef CONFIG_TRACING
+extern void
+ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3);
+#else
+static inline void
+ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { }
+#endif
+
+#endif /* _LINUX_FTRACE_H */
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index ae7aec3cabee..e8787417f65a 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -110,6 +110,14 @@ struct hd_struct {
 #define GENHD_FL_SUPPRESS_PARTITION_INFO        32
 #define GENHD_FL_FAIL                           64
 
+#define BLK_SCSI_MAX_CMDS       (256)
+#define BLK_SCSI_CMD_PER_LONG   (BLK_SCSI_MAX_CMDS / (sizeof(long) * 8))
+
+struct blk_scsi_cmd_filter {
+        unsigned long read_ok[BLK_SCSI_CMD_PER_LONG];
+        unsigned long write_ok[BLK_SCSI_CMD_PER_LONG];
+        struct kobject kobj;
+};
 
 struct gendisk {
         int major;                      /* major number of driver */
@@ -120,6 +128,7 @@ struct gendisk {
         struct hd_struct **part;        /* [indexed by minor] */
         struct block_device_operations *fops;
         struct request_queue *queue;
+        struct blk_scsi_cmd_filter cmd_filter;
         void *private_data;
         sector_t capacity;
 
@@ -141,6 +150,9 @@ struct gendisk {
         struct disk_stats dkstats;
 #endif
         struct work_struct async_notify;
+#ifdef  CONFIG_BLK_DEV_INTEGRITY
+        struct blk_integrity *integrity;
+#endif
 };
 
 /* 
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index f1fc7470d26c..a86186dd0474 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -285,12 +285,11 @@ enum
 struct softirq_action
 {
         void    (*action)(struct softirq_action *);
-        void    *data;
 };
 
 asmlinkage void do_softirq(void);
 asmlinkage void __do_softirq(void);
-extern void open_softirq(int nr, void (*action)(struct softirq_action*), void *data);
+extern void open_softirq(int nr, void (*action)(struct softirq_action *));
 extern void softirq_init(void);
 #define __raise_softirq_irqoff(nr) do { or_softirq_pending(1UL << (nr)); } while (0)
 extern void raise_softirq_irqoff(unsigned int nr);
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index 2b7a1187cb29..08b987bccf89 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -99,4 +99,22 @@ static inline struct io_context *ioc_task_link(struct io_context *ioc)
         return NULL;
 }
 
+#ifdef CONFIG_BLOCK
+int put_io_context(struct io_context *ioc);
+void exit_io_context(void);
+struct io_context *get_io_context(gfp_t gfp_flags, int node);
+struct io_context *alloc_io_context(gfp_t gfp_flags, int node);
+void copy_io_context(struct io_context **pdst, struct io_context **psrc);
+#else
+static inline void exit_io_context(void)
+{
+}
+
+struct io_context;
+static inline int put_io_context(struct io_context *ioc)
+{
+        return 1;
+}
+#endif
+
 #endif
diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h
index e600c4e9b8c5..2b1c2e58566e 100644
--- a/include/linux/irqflags.h
+++ b/include/linux/irqflags.h
@@ -12,10 +12,10 @@
 #define _LINUX_TRACE_IRQFLAGS_H
 
 #ifdef CONFIG_TRACE_IRQFLAGS
-  extern void trace_hardirqs_on(void);
-  extern void trace_hardirqs_off(void);
   extern void trace_softirqs_on(unsigned long ip);
   extern void trace_softirqs_off(unsigned long ip);
+  extern void trace_hardirqs_on(void);
+  extern void trace_hardirqs_off(void);
 # define trace_hardirq_context(p)       ((p)->hardirq_context)
 # define trace_softirq_context(p)       ((p)->softirq_context)
 # define trace_hardirqs_enabled(p)      ((p)->hardirqs_enabled)
@@ -41,6 +41,15 @@
 # define INIT_TRACE_IRQFLAGS
 #endif
 
+#if defined(CONFIG_IRQSOFF_TRACER) || \
+        defined(CONFIG_PREEMPT_TRACER)
+ extern void stop_critical_timings(void);
+ extern void start_critical_timings(void);
+#else
+# define stop_critical_timings() do { } while (0)
+# define start_critical_timings() do { } while (0)
+#endif
+
 #ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT
 
 #include <asm/irqflags.h>
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 2e70006c7fa8..f9cd7a513f9c 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -187,9 +187,6 @@ asmlinkage int vprintk(const char *fmt, va_list args)
         __attribute__ ((format (printf, 1, 0)));
 asmlinkage int printk(const char * fmt, ...)
         __attribute__ ((format (printf, 1, 2))) __cold;
-extern int log_buf_get_len(void);
-extern int log_buf_read(int idx);
-extern int log_buf_copy(char *dest, int idx, int len);
 
 extern int printk_ratelimit_jiffies;
 extern int printk_ratelimit_burst;
@@ -205,9 +202,6 @@ static inline int vprintk(const char *s, va_list args) { return 0; }
 static inline int printk(const char *s, ...)
         __attribute__ ((format (printf, 1, 2)));
 static inline int __cold printk(const char *s, ...) { return 0; }
-static inline int log_buf_get_len(void) { return 0; }
-static inline int log_buf_read(int idx) { return 0; }
-static inline int log_buf_copy(char *dest, int idx, int len) { return 0; }
 static inline int printk_ratelimit(void) { return 0; }
 static inline int __printk_ratelimit(int ratelimit_jiffies, \
                                      int ratelimit_burst) { return 0; }
@@ -216,7 +210,7 @@ static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies, \
                 { return false; }
 #endif
 
-extern void __attribute__((format(printf, 1, 2)))
+extern void asmlinkage __attribute__((format(printf, 1, 2)))
         early_printk(const char *fmt, ...);
 
 unsigned long int_sqrt(unsigned long);
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index e8ffce898bf9..cf9f40a91c9c 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -1,11 +1,11 @@
 #ifndef _LINUX_KERNEL_STAT_H
 #define _LINUX_KERNEL_STAT_H
 
-#include <asm/irq.h>
 #include <linux/smp.h>
 #include <linux/threads.h>
 #include <linux/percpu.h>
 #include <linux/cpumask.h>
+#include <asm/irq.h>
 #include <asm/cputime.h>
 
 /*
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 1036631ff4fa..04a3556bdea6 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -259,6 +259,10 @@ void recycle_rp_inst(struct kretprobe_instance *ri, struct hlist_head *head);
 struct jprobe;
 struct kretprobe;
 
+static inline struct kprobe *get_kprobe(void *addr)
+{
+        return NULL;
+}
 static inline struct kprobe *kprobe_running(void)
 {
         return NULL;
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 2119610b24f8..56ba37394656 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -1,8 +1,11 @@
 #ifndef _LINUX_LINKAGE_H
 #define _LINUX_LINKAGE_H
 
+#include <linux/compiler.h>
 #include <asm/linkage.h>
 
+#define notrace __attribute__((no_instrument_function))
+
 #ifdef __cplusplus
 #define CPP_ASMLINKAGE extern "C"
 #else
@@ -17,6 +20,9 @@
 # define asmregparm
 #endif
 
+#define __page_aligned_data     __section(.data.page_aligned) __aligned(PAGE_SIZE)
+#define __page_aligned_bss      __section(.bss.page_aligned) __aligned(PAGE_SIZE)
+
 /*
  * This is used by architectures to keep arguments on the stack
  * untouched by the compiler by keeping them live until the end.
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 4c4d236ded18..2486eb4edbf1 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -182,6 +182,9 @@ struct lock_list {
  * We record lock dependency chains, so that we can cache them:
  */
 struct lock_chain {
+        u8                              irq_context;
+        u8                              depth;
+        u16                             base;
         struct list_head                entry;
         u64                             chain_key;
 };
@@ -276,14 +279,6 @@ extern void lockdep_init_map(struct lockdep_map *lock, const char *name,
                                  (lock)->dep_map.key, sub)
 
 /*
- * To initialize a lockdep_map statically use this macro.
- * Note that _name must not be NULL.
- */
-#define STATIC_LOCKDEP_MAP_INIT(_name, _key) \
-        { .name = (_name), .key = (void *)(_key), }
-
-
-/*
  * Acquire a lock.
  *
  * Values for "read":
diff --git a/include/linux/marker.h b/include/linux/marker.h
index 430f6adf9762..1290653f9241 100644
--- a/include/linux/marker.h
+++ b/include/linux/marker.h
@@ -44,8 +44,8 @@ struct marker {
                                  */
         char state;             /* Marker state. */
         char ptype;             /* probe type : 0 : single, 1 : multi */
-        void (*call)(const struct marker *mdata,        /* Probe wrapper */
-                void *call_private, const char *fmt, ...);
+                                /* Probe wrapper */
+        void (*call)(const struct marker *mdata, void *call_private, ...);
         struct marker_probe_closure single;
         struct marker_probe_closure *multi;
 } __attribute__((aligned(8)));
@@ -58,8 +58,12 @@ struct marker {
  * Make sure the alignment of the structure in the __markers section will
  * not add unwanted padding between the beginning of the section and the
  * structure. Force alignment to the same alignment as the section start.
+ *
+ * The "generic" argument controls which marker enabling mechanism must be used.
+ * If generic is true, a variable read is used.
+ * If generic is false, immediate values are used.
  */
-#define __trace_mark(name, call_private, format, args...)               \
+#define __trace_mark(generic, name, call_private, format, args...)      \
         do {                                                            \
                 static const char __mstrtab_##name[]                    \
                 __attribute__((section("__markers_strings")))           \
@@ -72,15 +76,14 @@ struct marker {
                 __mark_check_format(format, ## args);                   \
                 if (unlikely(__mark_##name.state)) {                    \
                         (*__mark_##name.call)                           \
-                                (&__mark_##name, call_private,          \
-                                format, ## args);                       \
+                                (&__mark_##name, call_private, ## args);\
                 }                                                       \
         } while (0)
 
 extern void marker_update_probe_range(struct marker *begin,
         struct marker *end);
 #else /* !CONFIG_MARKERS */
-#define __trace_mark(name, call_private, format, args...) \
+#define __trace_mark(generic, name, call_private, format, args...) \
                 __mark_check_format(format, ## args)
 static inline void marker_update_probe_range(struct marker *begin,
         struct marker *end)
@@ -88,15 +91,30 @@ static inline void marker_update_probe_range(struct marker *begin,
 #endif /* CONFIG_MARKERS */
 
 /**
- * trace_mark - Marker
+ * trace_mark - Marker using code patching
  * @name: marker name, not quoted.
  * @format: format string
  * @args...: variable argument list
  *
- * Places a marker.
+ * Places a marker using optimized code patching technique (imv_read())
+ * to be enabled when immediate values are present.
  */
 #define trace_mark(name, format, args...) \
-        __trace_mark(name, NULL, format, ## args)
+        __trace_mark(0, name, NULL, format, ## args)
+
+/**
+ * _trace_mark - Marker using variable read
+ * @name: marker name, not quoted.
+ * @format: format string
+ * @args...: variable argument list
+ *
+ * Places a marker using a standard memory read (_imv_read()) to be
+ * enabled. Should be used for markers in code paths where instruction
+ * modification based enabling is not welcome. (__init and __exit functions,
+ * lockdep, some traps, printk).
+ */
+#define _trace_mark(name, format, args...) \
+        __trace_mark(1, name, NULL, format, ## args)
 
 /**
  * MARK_NOARGS - Format string for a marker with no argument.
@@ -117,9 +135,9 @@ static inline void __printf(1, 2) ___mark_check_format(const char *fmt, ...)
 extern marker_probe_func __mark_empty_function;
 
 extern void marker_probe_cb(const struct marker *mdata,
-        void *call_private, const char *fmt, ...);
+        void *call_private, ...);
 extern void marker_probe_cb_noarg(const struct marker *mdata,
-        void *call_private, const char *fmt, ...);
+        void *call_private, ...);
 
 /*
  * Connect a probe to a marker.
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 689184446fc6..2128ef7780c6 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -999,8 +999,8 @@ extern void free_area_init_node(int nid, pg_data_t *pgdat,
 extern void free_area_init_nodes(unsigned long *max_zone_pfn);
 extern void add_active_range(unsigned int nid, unsigned long start_pfn,
                                         unsigned long end_pfn);
-extern void shrink_active_range(unsigned int nid, unsigned long old_end_pfn,
-                                                unsigned long new_end_pfn);
+extern void remove_active_range(unsigned int nid, unsigned long start_pfn,
+                                        unsigned long end_pfn);
 extern void push_node_boundaries(unsigned int nid, unsigned long start_pfn,
                                         unsigned long end_pfn);
 extern void remove_all_active_ranges(void);
@@ -1012,6 +1012,8 @@ extern unsigned long find_min_pfn_with_active_regions(void);
 extern unsigned long find_max_pfn_with_active_regions(void);
 extern void free_bootmem_with_active_regions(int nid,
                                                 unsigned long max_low_pfn);
+typedef int (*work_fn_t)(unsigned long, unsigned long, void *);
+extern void work_with_active_regions(int nid, work_fn_t work_fn, void *data);
 extern void sparse_memory_present_with_active_regions(int nid);
 #ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
 extern int early_pfn_to_nid(unsigned long pfn);
@@ -1025,6 +1027,7 @@ extern void mem_init(void);
 extern void show_mem(void);
 extern void si_meminfo(struct sysinfo * val);
 extern void si_meminfo_node(struct sysinfo *val, int nid);
+extern int after_bootmem;
 
 #ifdef CONFIG_NUMA
 extern void setup_per_cpu_pageset(void);
diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h
new file mode 100644
index 000000000000..61d19e1b7a0b
--- /dev/null
+++ b/include/linux/mmiotrace.h
@@ -0,0 +1,85 @@
+#ifndef MMIOTRACE_H
+#define MMIOTRACE_H
+
+#include <linux/types.h>
+#include <linux/list.h>
+
+struct kmmio_probe;
+struct pt_regs;
+
+typedef void (*kmmio_pre_handler_t)(struct kmmio_probe *,
+                                struct pt_regs *, unsigned long addr);
+typedef void (*kmmio_post_handler_t)(struct kmmio_probe *,
+                                unsigned long condition, struct pt_regs *);
+
+struct kmmio_probe {
+        struct list_head list; /* kmmio internal list */
+        unsigned long addr; /* start location of the probe point */
+        unsigned long len; /* length of the probe region */
+        kmmio_pre_handler_t pre_handler; /* Called before addr is executed. */
+        kmmio_post_handler_t post_handler; /* Called after addr is executed */
+        void *private;
+};
+
+/* kmmio is active by some kmmio_probes? */
+static inline int is_kmmio_active(void)
+{
+        extern unsigned int kmmio_count;
+        return kmmio_count;
+}
+
+extern int register_kmmio_probe(struct kmmio_probe *p);
+extern void unregister_kmmio_probe(struct kmmio_probe *p);
+
+/* Called from page fault handler. */
+extern int kmmio_handler(struct pt_regs *regs, unsigned long addr);
+
+/* Called from ioremap.c */
+#ifdef CONFIG_MMIOTRACE
+extern void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
+                                                        void __iomem *addr);
+extern void mmiotrace_iounmap(volatile void __iomem *addr);
+#else
+static inline void mmiotrace_ioremap(resource_size_t offset,
+                                        unsigned long size, void __iomem *addr)
+{
+}
+
+static inline void mmiotrace_iounmap(volatile void __iomem *addr)
+{
+}
+#endif /* CONFIG_MMIOTRACE_HOOKS */
+
+enum mm_io_opcode {
+        MMIO_READ = 0x1,     /* struct mmiotrace_rw */
+        MMIO_WRITE = 0x2,    /* struct mmiotrace_rw */
+        MMIO_PROBE = 0x3,    /* struct mmiotrace_map */
+        MMIO_UNPROBE = 0x4,  /* struct mmiotrace_map */
+        MMIO_MARKER = 0x5,   /* raw char data */
+        MMIO_UNKNOWN_OP = 0x6, /* struct mmiotrace_rw */
+};
+
+struct mmiotrace_rw {
+        resource_size_t phys;   /* PCI address of register */
+        unsigned long value;
+        unsigned long pc;       /* optional program counter */
+        int map_id;
+        unsigned char opcode;   /* one of MMIO_{READ,WRITE,UNKNOWN_OP} */
+        unsigned char width;    /* size of register access in bytes */
+};
+
+struct mmiotrace_map {
+        resource_size_t phys;   /* base address in PCI space */
+        unsigned long virt;     /* base virtual address */
+        unsigned long len;      /* mapping size */
+        int map_id;
+        unsigned char opcode;   /* MMIO_PROBE or MMIO_UNPROBE */
+};
+
+/* in kernel/trace/trace_mmiotrace.c */
+extern void enable_mmiotrace(void);
+extern void disable_mmiotrace(void);
+extern void mmio_trace_rw(struct mmiotrace_rw *rw);
+extern void mmio_trace_mapping(struct mmiotrace_map *map);
+
+#endif /* MMIOTRACE_H */
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 69b2342d5ebb..c4db5827963d 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -159,6 +159,15 @@ struct ap_device_id {
 
 #define AP_DEVICE_ID_MATCH_DEVICE_TYPE          0x01
 
+/* s390 css bus devices (subchannels) */
+struct css_device_id {
+        __u8 match_flags;
+        __u8 type; /* subchannel type */
+        __u16 pad2;
+        __u32 pad3;
+        kernel_ulong_t driver_data;
+};
+
 #define ACPI_ID_LEN     16 /* only 9 bytes needed here, 16 bytes are used */
                            /* to workaround crosscompile issues */
 
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index f31debfac926..0d2a4e7012aa 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -157,6 +157,7 @@ PAGEFLAG(Active, active) __CLEARPAGEFLAG(Active, active)
 __PAGEFLAG(Slab, slab)
 PAGEFLAG(Checked, owner_priv_1)         /* Used by some filesystems */
 PAGEFLAG(Pinned, owner_priv_1) TESTSCFLAG(Pinned, owner_priv_1) /* Xen */
+PAGEFLAG(SavePinned, dirty);                                    /* Xen */
 PAGEFLAG(Reserved, reserved) __CLEARPAGEFLAG(Reserved, reserved)
 PAGEFLAG(Private, private) __CLEARPAGEFLAG(Private, private)
         __SETPAGEFLAG(Private, private)
diff --git a/include/linux/pageblock-flags.h b/include/linux/pageblock-flags.h
index e875905f7b12..e8c06122be36 100644
--- a/include/linux/pageblock-flags.h
+++ b/include/linux/pageblock-flags.h
@@ -25,13 +25,11 @@
 
 #include <linux/types.h>
 
-/* Macro to aid the definition of ranges of bits */
-#define PB_range(name, required_bits) \
-        name, name ## _end = (name + required_bits) - 1
-
 /* Bit indices that affect a whole block of pages */
 enum pageblock_bits {
-        PB_range(PB_migrate, 3), /* 3 bits required for migrate types */
+        PB_migrate,
+        PB_migrate_end = PB_migrate + 3 - 1,
+                        /* 3 bits required for migrate types */
         NR_PAGEBLOCK_BITS
 };
 
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index 23f0c54175cd..72b1a10a59b6 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -10,7 +10,7 @@
 #include <linux/linkage.h>
 #include <linux/list.h>
 
-#ifdef CONFIG_DEBUG_PREEMPT
+#if defined(CONFIG_DEBUG_PREEMPT) || defined(CONFIG_PREEMPT_TRACER)
   extern void add_preempt_count(int val);
   extern void sub_preempt_count(int val);
 #else
@@ -52,6 +52,34 @@ do { \
         preempt_check_resched(); \
 } while (0)
 
+/* For debugging and tracer internals only! */
+#define add_preempt_count_notrace(val)                  \
+        do { preempt_count() += (val); } while (0)
+#define sub_preempt_count_notrace(val)                  \
+        do { preempt_count() -= (val); } while (0)
+#define inc_preempt_count_notrace() add_preempt_count_notrace(1)
+#define dec_preempt_count_notrace() sub_preempt_count_notrace(1)
+
+#define preempt_disable_notrace() \
+do { \
+        inc_preempt_count_notrace(); \
+        barrier(); \
+} while (0)
+
+#define preempt_enable_no_resched_notrace() \
+do { \
+        barrier(); \
+        dec_preempt_count_notrace(); \
+} while (0)
+
+/* preempt_check_resched is OK to trace */
+#define preempt_enable_notrace() \
+do { \
+        preempt_enable_no_resched_notrace(); \
+        barrier(); \
+        preempt_check_resched(); \
+} while (0)
+
 #else
 
 #define preempt_disable()               do { } while (0)
@@ -59,6 +87,10 @@ do { \
 #define preempt_enable()                do { } while (0)
 #define preempt_check_resched()         do { } while (0)
 
+#define preempt_disable_notrace()               do { } while (0)
+#define preempt_enable_no_resched_notrace()     do { } while (0)
+#define preempt_enable_notrace()                do { } while (0)
+
 #endif
 
 #ifdef CONFIG_PREEMPT_NOTIFIERS
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index f98501ba557e..c6f5f9dd0cee 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -95,8 +95,12 @@ extern void __ptrace_link(struct task_struct *child,
                           struct task_struct *new_parent);
 extern void __ptrace_unlink(struct task_struct *child);
 extern void ptrace_untrace(struct task_struct *child);
-extern int ptrace_may_attach(struct task_struct *task);
-extern int __ptrace_may_attach(struct task_struct *task);
+#define PTRACE_MODE_READ   1
+#define PTRACE_MODE_ATTACH 2
+/* Returns 0 on success, -errno on denial. */
+extern int __ptrace_may_access(struct task_struct *task, unsigned int mode);
+/* Returns true on success, false on denial. */
+extern bool ptrace_may_access(struct task_struct *task, unsigned int mode);
 
 static inline int ptrace_reparented(struct task_struct *child)
 {
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
new file mode 100644
index 000000000000..3945f803d514
--- /dev/null
+++ b/include/linux/pwm.h
@@ -0,0 +1,31 @@
+#ifndef __LINUX_PWM_H
+#define __LINUX_PWM_H
+
+struct pwm_device;
+
+/*
+ * pwm_request - request a PWM device
+ */
+struct pwm_device *pwm_request(int pwm_id, const char *label);
+
+/*
+ * pwm_free - free a PWM device
+ */
+void pwm_free(struct pwm_device *pwm);
+
+/*
+ * pwm_config - change a PWM device configuration
+ */
+int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns);
+
+/*
+ * pwm_enable - start a PWM output toggling
+ */
+int pwm_enable(struct pwm_device *pwm);
+
+/*
+ * pwm_disable - stop a PWM output toggling
+ */
+void pwm_disable(struct pwm_device *pwm);
+
+#endif /* __ASM_ARCH_PWM_H */
diff --git a/include/linux/pwm_backlight.h b/include/linux/pwm_backlight.h
new file mode 100644
index 000000000000..7a9754c96775
--- /dev/null
+++ b/include/linux/pwm_backlight.h
@@ -0,0 +1,17 @@
+/*
+ * Generic PWM backlight driver data - see drivers/video/backlight/pwm_bl.c
+ */
+#ifndef __LINUX_PWM_BACKLIGHT_H
+#define __LINUX_PWM_BACKLIGHT_H
+
+struct platform_pwm_backlight_data {
+        int pwm_id;
+        unsigned int max_brightness;
+        unsigned int dft_brightness;
+        unsigned int pwm_period_ns;
+        int (*init)(struct device *dev);
+        int (*notify)(int brightness);
+        void (*exit)(struct device *dev);
+};
+
+#endif
diff --git a/include/linux/resume-trace.h b/include/linux/resume-trace.h
index f3f4f28c6960..c9ba2fdf807d 100644
--- a/include/linux/resume-trace.h
+++ b/include/linux/resume-trace.h
@@ -8,7 +8,7 @@ extern int pm_trace_enabled;
 
 struct device;
 extern void set_trace_device(struct device *);
-extern void generate_resume_trace(void *tracedata, unsigned int user);
+extern void generate_resume_trace(const void *tracedata, unsigned int user);
 
 #define TRACE_DEVICE(dev) do { \
         if (pm_trace_enabled) \
diff --git a/include/linux/sched.h b/include/linux/sched.h
index c5d3f847ca8d..21349173d148 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -134,7 +134,6 @@ extern unsigned long nr_running(void);
 extern unsigned long nr_uninterruptible(void);
 extern unsigned long nr_active(void);
 extern unsigned long nr_iowait(void);
-extern unsigned long weighted_cpuload(const int cpu);
 
 struct seq_file;
 struct cfs_rq;
@@ -246,6 +245,8 @@ extern asmlinkage void schedule_tail(struct task_struct *prev);
 extern void init_idle(struct task_struct *idle, int cpu);
 extern void init_idle_bootup_task(struct task_struct *idle);
 
+extern int runqueue_is_locked(void);
+
 extern cpumask_t nohz_cpu_mask;
 #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ)
 extern int select_nohz_load_balancer(int cpu);
@@ -784,6 +785,8 @@ struct sched_domain {
         unsigned int balance_interval;  /* initialise to 1. units in ms. */
         unsigned int nr_balance_failed; /* initialise to 0 */
 
+        u64 last_update;
+
 #ifdef CONFIG_SCHEDSTATS
         /* load_balance() stats */
         unsigned int lb_count[CPU_MAX_IDLE_TYPES];
@@ -823,23 +826,6 @@ extern int arch_reinit_sched_domains(void);
 
 #endif  /* CONFIG_SMP */
 
-/*
- * A runqueue laden with a single nice 0 task scores a weighted_cpuload of
- * SCHED_LOAD_SCALE. This function returns 1 if any cpu is laden with a
- * task of nice 0 or enough lower priority tasks to bring up the
- * weighted_cpuload
- */
-static inline int above_background_load(void)
-{
-        unsigned long cpu;
-
-        for_each_online_cpu(cpu) {
-                if (weighted_cpuload(cpu) >= SCHED_LOAD_SCALE)
-                        return 1;
-        }
-        return 0;
-}
-
 struct io_context;                      /* See blkdev.h */
 #define NGROUPS_SMALL           32
 #define NGROUPS_PER_BLOCK       ((unsigned int)(PAGE_SIZE / sizeof(gid_t)))
@@ -921,8 +907,8 @@ struct sched_class {
         void (*set_cpus_allowed)(struct task_struct *p,
                                  const cpumask_t *newmask);
 
-        void (*join_domain)(struct rq *rq);
-        void (*leave_domain)(struct rq *rq);
+        void (*rq_online)(struct rq *rq);
+        void (*rq_offline)(struct rq *rq);
 
         void (*switched_from) (struct rq *this_rq, struct task_struct *task,
                                int running);
@@ -1039,6 +1025,7 @@ struct task_struct {
 #endif
 
         int prio, static_prio, normal_prio;
+        unsigned int rt_priority;
         const struct sched_class *sched_class;
         struct sched_entity se;
         struct sched_rt_entity rt;
@@ -1122,7 +1109,6 @@ struct task_struct {
         int __user *set_child_tid;              /* CLONE_CHILD_SETTID */
         int __user *clear_child_tid;            /* CLONE_CHILD_CLEARTID */
 
-        unsigned int rt_priority;
         cputime_t utime, stime, utimescaled, stimescaled;
         cputime_t gtime;
         cputime_t prev_utime, prev_stime;
@@ -1141,12 +1127,12 @@ struct task_struct {
         gid_t gid,egid,sgid,fsgid;
         struct group_info *group_info;
         kernel_cap_t   cap_effective, cap_inheritable, cap_permitted, cap_bset;
-        unsigned securebits;
         struct user_struct *user;
+        unsigned securebits;
 #ifdef CONFIG_KEYS
+        unsigned char jit_keyring;      /* default keyring to attach requested keys to */
         struct key *request_key_auth;   /* assumed request_key authority */
         struct key *thread_keyring;     /* keyring private to this thread */
-        unsigned char jit_keyring;      /* default keyring to attach requested keys to */
 #endif
         char comm[TASK_COMM_LEN]; /* executable name excluding path
                                      - access with [gs]et_task_comm (which lock
@@ -1233,8 +1219,8 @@ struct task_struct {
 # define MAX_LOCK_DEPTH 48UL
         u64 curr_chain_key;
         int lockdep_depth;
-        struct held_lock held_locks[MAX_LOCK_DEPTH];
         unsigned int lockdep_recursion;
+        struct held_lock held_locks[MAX_LOCK_DEPTH];
 #endif
 
 /* journalling filesystem info */
@@ -1262,10 +1248,6 @@ struct task_struct {
         u64 acct_vm_mem1;       /* accumulated virtual memory usage */
         cputime_t acct_stimexpd;/* stime since last update */
 #endif
-#ifdef CONFIG_NUMA
-        struct mempolicy *mempolicy;
-        short il_next;
-#endif
 #ifdef CONFIG_CPUSETS
         nodemask_t mems_allowed;
         int cpuset_mems_generation;
@@ -1285,6 +1267,10 @@ struct task_struct {
         struct list_head pi_state_list;
         struct futex_pi_state *pi_state_cache;
 #endif
+#ifdef CONFIG_NUMA
+        struct mempolicy *mempolicy;
+        short il_next;
+#endif
         atomic_t fs_excl;       /* holding fs exclusive resources */
         struct rcu_head rcu;
 
@@ -1504,6 +1490,7 @@ static inline void put_task_struct(struct task_struct *t)
 #define PF_SWAPWRITE    0x00800000      /* Allowed to write to swap */
 #define PF_SPREAD_PAGE  0x01000000      /* Spread page cache over cpuset */
 #define PF_SPREAD_SLAB  0x02000000      /* Spread some slab caches over cpuset */
+#define PF_THREAD_BOUND 0x04000000      /* Thread bound to specific cpu */
 #define PF_MEMPOLICY    0x10000000      /* Non-default NUMA mempolicy */
 #define PF_MUTEX_TESTER 0x20000000      /* Thread belongs to the rt mutex tester */
 #define PF_FREEZER_SKIP 0x40000000      /* Freezer should not count it as freezeable */
@@ -1573,13 +1560,28 @@ static inline void sched_clock_idle_sleep_event(void)
 static inline void sched_clock_idle_wakeup_event(u64 delta_ns)
 {
 }
-#else
+
+#ifdef CONFIG_NO_HZ
+static inline void sched_clock_tick_stop(int cpu)
+{
+}
+
+static inline void sched_clock_tick_start(int cpu)
+{
+}
+#endif
+
+#else /* CONFIG_HAVE_UNSTABLE_SCHED_CLOCK */
 extern void sched_clock_init(void);
 extern u64 sched_clock_cpu(int cpu);
 extern void sched_clock_tick(void);
 extern void sched_clock_idle_sleep_event(void);
 extern void sched_clock_idle_wakeup_event(u64 delta_ns);
+#ifdef CONFIG_NO_HZ
+extern void sched_clock_tick_stop(int cpu);
+extern void sched_clock_tick_start(int cpu);
 #endif
+#endif /* CONFIG_HAVE_UNSTABLE_SCHED_CLOCK */
 
 /*
  * For kernel-internal use: high-speed (but slightly incorrect) per-cpu
@@ -1622,6 +1624,7 @@ extern unsigned int sysctl_sched_child_runs_first;
 extern unsigned int sysctl_sched_features;
 extern unsigned int sysctl_sched_migration_cost;
 extern unsigned int sysctl_sched_nr_migrate;
+extern unsigned int sysctl_sched_shares_ratelimit;
 
 int sched_nr_latency_handler(struct ctl_table *table, int write,
                 struct file *file, void __user *buffer, size_t *length,
@@ -1655,6 +1658,8 @@ extern int can_nice(const struct task_struct *p, const int nice);
 extern int task_curr(const struct task_struct *p);
 extern int idle_cpu(int cpu);
 extern int sched_setscheduler(struct task_struct *, int, struct sched_param *);
+extern int sched_setscheduler_nocheck(struct task_struct *, int,
+                                      struct sched_param *);
 extern struct task_struct *idle_task(int cpu);
 extern struct task_struct *curr_task(int cpu);
 extern void set_curr_task(int cpu, struct task_struct *p);
@@ -2131,6 +2136,18 @@ static inline void arch_pick_mmap_layout(struct mm_struct *mm)
 }
 #endif
 
+#ifdef CONFIG_TRACING
+extern void
+__trace_special(void *__tr, void *__data,
+                unsigned long arg1, unsigned long arg2, unsigned long arg3);
+#else
+static inline void
+__trace_special(void *__tr, void *__data,
+                unsigned long arg1, unsigned long arg2, unsigned long arg3)
+{
+}
+#endif
+
 extern long sched_setaffinity(pid_t pid, const cpumask_t *new_mask);
 extern long sched_getaffinity(pid_t pid, cpumask_t *mask);
 
@@ -2225,6 +2242,8 @@ static inline void mm_init_owner(struct mm_struct *mm, struct task_struct *p)
 }
 #endif /* CONFIG_MM_OWNER */
 
+#define TASK_STATE_TO_CHAR_STR "RSDTtZX"
+
 #endif /* __KERNEL__ */
 
 #endif
diff --git a/include/linux/security.h b/include/linux/security.h
index 50737c70e78e..31c8851ec5d0 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -46,7 +46,8 @@ struct audit_krule;
  */
 extern int cap_capable(struct task_struct *tsk, int cap);
 extern int cap_settime(struct timespec *ts, struct timezone *tz);
-extern int cap_ptrace(struct task_struct *parent, struct task_struct *child);
+extern int cap_ptrace(struct task_struct *parent, struct task_struct *child,
+                      unsigned int mode);
 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
 extern int cap_capset_check(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
 extern void cap_capset_set(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
@@ -79,6 +80,7 @@ struct xfrm_selector;
 struct xfrm_policy;
 struct xfrm_state;
 struct xfrm_user_sec_ctx;
+struct seq_file;
 
 extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
 extern int cap_netlink_recv(struct sk_buff *skb, int cap);
@@ -289,10 +291,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *      Update module state after a successful pivot.
  *      @old_path contains the path for the old root.
  *      @new_path contains the path for the new root.
- * @sb_get_mnt_opts:
- *      Get the security relevant mount options used for a superblock
- *      @sb the superblock to get security mount options from
- *      @opts binary data structure containing all lsm mount data
  * @sb_set_mnt_opts:
  *      Set the security relevant mount options used for a superblock
  *      @sb the superblock to set security mount options for
@@ -1170,6 +1168,7 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *      attributes would be changed by the execve.
  *      @parent contains the task_struct structure for parent process.
  *      @child contains the task_struct structure for child process.
+ *      @mode contains the PTRACE_MODE flags indicating the form of access.
  *      Return 0 if permission is granted.
  * @capget:
  *      Get the @effective, @inheritable, and @permitted capability sets for
@@ -1240,11 +1239,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *      @pages contains the number of pages.
  *      Return 0 if permission is granted.
  *
- * @register_security:
- *      allow module stacking.
- *      @name contains the name of the security module being stacked.
- *      @ops contains a pointer to the struct security_operations of the module to stack.
- *
  * @secid_to_secctx:
  *      Convert secid to security context.
  *      @secid contains the security ID.
@@ -1295,7 +1289,8 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
 struct security_operations {
         char name[SECURITY_NAME_MAX + 1];
 
-        int (*ptrace) (struct task_struct *parent, struct task_struct *child);
+        int (*ptrace) (struct task_struct *parent, struct task_struct *child,
+                       unsigned int mode);
         int (*capget) (struct task_struct *target,
                        kernel_cap_t *effective,
                        kernel_cap_t *inheritable, kernel_cap_t *permitted);
@@ -1328,6 +1323,7 @@ struct security_operations {
         void (*sb_free_security) (struct super_block *sb);
         int (*sb_copy_data) (char *orig, char *copy);
         int (*sb_kern_mount) (struct super_block *sb, void *data);
+        int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
         int (*sb_statfs) (struct dentry *dentry);
         int (*sb_mount) (char *dev_name, struct path *path,
                          char *type, unsigned long flags, void *data);
@@ -1343,8 +1339,6 @@ struct security_operations {
                              struct path *new_path);
         void (*sb_post_pivotroot) (struct path *old_path,
                                    struct path *new_path);
-        int (*sb_get_mnt_opts) (const struct super_block *sb,
-                                struct security_mnt_opts *opts);
         int (*sb_set_mnt_opts) (struct super_block *sb,
                                 struct security_mnt_opts *opts);
         void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
@@ -1472,10 +1466,6 @@ struct security_operations {
         int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
         int (*netlink_recv) (struct sk_buff *skb, int cap);
 
-        /* allow module stacking */
-        int (*register_security) (const char *name,
-                                  struct security_operations *ops);
-
         void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
 
         int (*getprocattr) (struct task_struct *p, char *name, char **value);
@@ -1565,7 +1555,6 @@ struct security_operations {
 extern int security_init(void);
 extern int security_module_enable(struct security_operations *ops);
 extern int register_security(struct security_operations *ops);
-extern int mod_reg_security(const char *name, struct security_operations *ops);
 extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
                                              struct dentry *parent, void *data,
                                              const struct file_operations *fops);
@@ -1573,7 +1562,8 @@ extern struct dentry *securityfs_create_dir(const char *name, struct dentry *par
 extern void securityfs_remove(struct dentry *dentry);
 
 /* Security operations */
-int security_ptrace(struct task_struct *parent, struct task_struct *child);
+int security_ptrace(struct task_struct *parent, struct task_struct *child,
+                    unsigned int mode);
 int security_capget(struct task_struct *target,
                     kernel_cap_t *effective,
                     kernel_cap_t *inheritable,
@@ -1606,6 +1596,7 @@ int security_sb_alloc(struct super_block *sb);
 void security_sb_free(struct super_block *sb);
 int security_sb_copy_data(char *orig, char *copy);
 int security_sb_kern_mount(struct super_block *sb, void *data);
+int security_sb_show_options(struct seq_file *m, struct super_block *sb);
 int security_sb_statfs(struct dentry *dentry);
 int security_sb_mount(char *dev_name, struct path *path,
                       char *type, unsigned long flags, void *data);
@@ -1617,8 +1608,6 @@ void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *d
 void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint);
 int security_sb_pivotroot(struct path *old_path, struct path *new_path);
 void security_sb_post_pivotroot(struct path *old_path, struct path *new_path);
-int security_sb_get_mnt_opts(const struct super_block *sb,
-                                struct security_mnt_opts *opts);
 int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
                                 struct super_block *newsb);
@@ -1755,9 +1744,11 @@ static inline int security_init(void)
         return 0;
 }
 
-static inline int security_ptrace(struct task_struct *parent, struct task_struct *child)
+static inline int security_ptrace(struct task_struct *parent,
+                                  struct task_struct *child,
+                                  unsigned int mode)
 {
-        return cap_ptrace(parent, child);
+        return cap_ptrace(parent, child, mode);
 }
 
 static inline int security_capget(struct task_struct *target,
@@ -1881,6 +1872,12 @@ static inline int security_sb_kern_mount(struct super_block *sb, void *data)
         return 0;
 }
 
+static inline int security_sb_show_options(struct seq_file *m,
+                                           struct super_block *sb)
+{
+        return 0;
+}
+
 static inline int security_sb_statfs(struct dentry *dentry)
 {
         return 0;
@@ -1927,12 +1924,6 @@ static inline int security_sb_pivotroot(struct path *old_path,
 static inline void security_sb_post_pivotroot(struct path *old_path,
                                               struct path *new_path)
 { }
-static inline int security_sb_get_mnt_opts(const struct super_block *sb,
-                                           struct security_mnt_opts *opts)
-{
-        security_init_mnt_opts(opts);
-        return 0;
-}
 
 static inline int security_sb_set_mnt_opts(struct super_block *sb,
                                            struct security_mnt_opts *opts)
diff --git a/include/linux/smp_lock.h b/include/linux/smp_lock.h
index aab3a4cff4e1..813be59bf345 100644
--- a/include/linux/smp_lock.h
+++ b/include/linux/smp_lock.h
@@ -27,11 +27,24 @@ static inline int reacquire_kernel_lock(struct task_struct *task)
 extern void __lockfunc lock_kernel(void)        __acquires(kernel_lock);
 extern void __lockfunc unlock_kernel(void)      __releases(kernel_lock);
 
+/*
+ * Various legacy drivers don't really need the BKL in a specific
+ * function, but they *do* need to know that the BKL became available.
+ * This function just avoids wrapping a bunch of lock/unlock pairs
+ * around code which doesn't really need it.
+ */
+static inline void cycle_kernel_lock(void)
+{
+        lock_kernel();
+        unlock_kernel();
+}
+
 #else
 
 #define lock_kernel()                           do { } while(0)
 #define unlock_kernel()                         do { } while(0)
 #define release_kernel_lock(task)               do { } while(0)
+#define cycle_kernel_lock()                     do { } while(0)
 #define reacquire_kernel_lock(task)             0
 #define kernel_locked()                         1
 
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index f462439cc288..bd91987c065f 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -105,6 +105,8 @@ extern int vm_highmem_is_dirtyable;
 extern int block_dump;
 extern int laptop_mode;
 
+extern unsigned long determine_dirtyable_memory(void);
+
 extern int dirty_ratio_handler(struct ctl_table *table, int write,
                 struct file *filp, void __user *buffer, size_t *lenp,
                 loff_t *ppos);