7 files changed, 63 insertions, 44 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/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/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/page-flags.h b/include/linux/page-flags.h
index b5d13841604e..70473da47b3f 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -362,7 +362,7 @@ static inline void ClearPageCompound(struct page *page)
  * pages on the LRU and/or pagecache.
  */
 TESTPAGEFLAG(Compound, compound)
-__PAGEFLAG(Head, compound)
+__SETPAGEFLAG(Head, compound)  __CLEARPAGEFLAG(Head, compound)
 
 /*
  * PG_reclaim is used in combination with PG_compound to mark the
@@ -374,8 +374,14 @@ __PAGEFLAG(Head, compound)
  * PG_compound & PG_reclaim     => Tail page
  * PG_compound & ~PG_reclaim    => Head page
  */
+#define PG_head_mask ((1L << PG_compound))
 #define PG_head_tail_mask ((1L << PG_compound) | (1L << PG_reclaim))
 
+static inline int PageHead(struct page *page)
+{
+        return ((page->flags & PG_head_tail_mask) == PG_head_mask);
+}
+
 static inline int PageTail(struct page *page)
 {
         return ((page->flags & PG_head_tail_mask) == PG_head_tail_mask);
diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h
index 87490ac4bd87..3a9df2f43be6 100644
--- a/include/linux/watchdog.h
+++ b/include/linux/watchdog.h
@@ -129,7 +129,7 @@ static inline void *watchdog_get_drvdata(struct watchdog_device *wdd)
         return wdd->driver_data;
 }
 
-/* drivers/watchdog/core/watchdog_core.c */
+/* drivers/watchdog/watchdog_core.c */
 extern int watchdog_register_device(struct watchdog_device *);
 extern void watchdog_unregister_device(struct watchdog_device *);
 
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 */