Merge branch 'linus' into core/percpu

Conflicts:
	kernel/irq/handle.c

14 files changed, 164 insertions, 55 deletions

diff --git a/include/drm/drm.h b/include/drm/drm.h
index 32e5096554e9..8e77357334ad 100644
--- a/include/drm/drm.h
+++ b/include/drm/drm.h
@@ -458,7 +458,7 @@ enum drm_vblank_seq_type {
         _DRM_VBLANK_FLIP = 0x8000000,   /**< Scheduled buffer swap should flip */
         _DRM_VBLANK_NEXTONMISS = 0x10000000,    /**< If missed, wait for next vblank */
         _DRM_VBLANK_SECONDARY = 0x20000000,     /**< Secondary display controller */
-        _DRM_VBLANK_SIGNAL = 0x40000000 /**< Send signal instead of blocking */
+        _DRM_VBLANK_SIGNAL = 0x40000000 /**< Send signal instead of blocking, unsupported */
 };
 
 #define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE)
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index afb7858c068d..8190b9bcc2d9 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -545,13 +545,6 @@ struct drm_ctx_list {
         struct drm_file *tag;           /**< associated fd private data */
 };
 
-struct drm_vbl_sig {
-        struct list_head head;
-        unsigned int sequence;
-        struct siginfo info;
-        struct task_struct *task;
-};
-
 /* location of GART table */
 #define DRM_ATI_GART_MAIN 1
 #define DRM_ATI_GART_FB   2
@@ -903,8 +896,6 @@ struct drm_device {
         wait_queue_head_t *vbl_queue;   /**< VBLANK wait queue */
         atomic_t *_vblank_count;        /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
         spinlock_t vbl_lock;
-        struct list_head *vbl_sigs;     /**< signal list to send on VBLANK */
-        atomic_t vbl_signal_pending;    /* number of signals pending on all crtcs*/
         atomic_t *vblank_refcount;      /* number of users of vblank interruptsper crtc */
         u32 *last_vblank;               /* protected by dev->vbl_lock, used */
                                         /* for wraparound handling */
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index e267e62827bb..e4e8e117d27d 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -99,6 +99,7 @@ static inline bool css_tryget(struct cgroup_subsys_state *css)
         while (!atomic_inc_not_zero(&css->refcnt)) {
                 if (test_bit(CSS_REMOVED, &css->flags))
                         return false;
+                cpu_relax();
         }
         return true;
 }
diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index 34161907b2f8..d741b9ceb0e0 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -38,6 +38,7 @@ struct dmi_device {
 #ifdef CONFIG_DMI
 
 extern int dmi_check_system(const struct dmi_system_id *list);
+const struct dmi_system_id *dmi_first_match(const struct dmi_system_id *list);
 extern const char * dmi_get_system_info(int field);
 extern const struct dmi_device * dmi_find_device(int type, const char *name,
         const struct dmi_device *from);
@@ -64,6 +65,8 @@ static inline int dmi_walk(void (*decode)(const struct dmi_header *))
         { return -1; }
 static inline bool dmi_match(enum dmi_field f, const char *str)
         { return false; }
+static inline const struct dmi_system_id *
+        dmi_first_match(const struct dmi_system_id *list) { return NULL; }
 
 #endif
 
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index d6ea19e314bb..32851eef48f0 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -49,6 +49,13 @@
 
 /* Attach to insert probes on any functions which should be ignored*/
 #define __kprobes       __attribute__((__section__(".kprobes.text"))) notrace
+#else /* CONFIG_KPROBES */
+typedef int kprobe_opcode_t;
+struct arch_specific_insn {
+        int dummy;
+};
+#define __kprobes       notrace
+#endif /* CONFIG_KPROBES */
 
 struct kprobe;
 struct pt_regs;
@@ -131,23 +138,6 @@ struct jprobe {
 /* For backward compatibility with old code using JPROBE_ENTRY() */
 #define JPROBE_ENTRY(handler)   (handler)
 
-DECLARE_PER_CPU(struct kprobe *, current_kprobe);
-DECLARE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
-
-#ifdef CONFIG_KRETPROBES
-extern void arch_prepare_kretprobe(struct kretprobe_instance *ri,
-                                   struct pt_regs *regs);
-extern int arch_trampoline_kprobe(struct kprobe *p);
-#else /* CONFIG_KRETPROBES */
-static inline void arch_prepare_kretprobe(struct kretprobe *rp,
-                                        struct pt_regs *regs)
-{
-}
-static inline int arch_trampoline_kprobe(struct kprobe *p)
-{
-        return 0;
-}
-#endif /* CONFIG_KRETPROBES */
 /*
  * Function-return probe -
  * Note:
@@ -188,6 +178,25 @@ struct kprobe_blackpoint {
         unsigned long range;
 };
 
+#ifdef CONFIG_KPROBES
+DECLARE_PER_CPU(struct kprobe *, current_kprobe);
+DECLARE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
+
+#ifdef CONFIG_KRETPROBES
+extern void arch_prepare_kretprobe(struct kretprobe_instance *ri,
+                                   struct pt_regs *regs);
+extern int arch_trampoline_kprobe(struct kprobe *p);
+#else /* CONFIG_KRETPROBES */
+static inline void arch_prepare_kretprobe(struct kretprobe *rp,
+                                        struct pt_regs *regs)
+{
+}
+static inline int arch_trampoline_kprobe(struct kprobe *p)
+{
+        return 0;
+}
+#endif /* CONFIG_KRETPROBES */
+
 extern struct kretprobe_blackpoint kretprobe_blacklist[];
 
 static inline void kretprobe_assert(struct kretprobe_instance *ri,
@@ -264,10 +273,6 @@ void recycle_rp_inst(struct kretprobe_instance *ri, struct hlist_head *head);
 
 #else /* CONFIG_KPROBES */
 
-#define __kprobes       notrace
-struct jprobe;
-struct kretprobe;
-
 static inline struct kprobe *get_kprobe(void *addr)
 {
         return NULL;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 2c6bd66209ff..bca3ba25f52a 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -187,6 +187,8 @@ enum {
         ATA_FLAG_PIO_POLLING    = (1 << 9), /* use polling PIO if LLD
                                              * doesn't handle PIO interrupts */
         ATA_FLAG_NCQ            = (1 << 10), /* host supports NCQ */
+        ATA_FLAG_NO_POWEROFF_SPINDOWN = (1 << 11), /* don't spindown before poweroff */
+        ATA_FLAG_NO_HIBERNATE_SPINDOWN = (1 << 12), /* don't spindown before hibernation */
         ATA_FLAG_DEBUGMSG       = (1 << 13),
         ATA_FLAG_IGN_SIMPLEX    = (1 << 15), /* ignore SIMPLEX */
         ATA_FLAG_NO_IORDY       = (1 << 16), /* controller lacks iordy */
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 97b91d1abb43..fde86671f48f 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -443,6 +443,13 @@ struct dmi_system_id {
         struct dmi_strmatch matches[4];
         void *driver_data;
 };
+/*
+ * struct dmi_device_id appears during expansion of
+ * "MODULE_DEVICE_TABLE(dmi, x)". Compiler doesn't look inside it
+ * but this is enough for gcc 3.4.6 to error out:
+ *      error: storage size of '__mod_dmi_device_table' isn't known
+ */
+#define dmi_device_id dmi_system_id
 #endif
 
 #define DMI_MATCH(a, b) { a, b }
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index d56ad9c21c09..febc10ed3858 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1357,6 +1357,7 @@
 #define PCI_DEVICE_ID_VIA_8783_0        0x3208
 #define PCI_DEVICE_ID_VIA_8237          0x3227
 #define PCI_DEVICE_ID_VIA_8251          0x3287
+#define PCI_DEVICE_ID_VIA_8261          0x3402
 #define PCI_DEVICE_ID_VIA_8237A         0x3337
 #define PCI_DEVICE_ID_VIA_8237S         0x3372
 #define PCI_DEVICE_ID_VIA_SATA_EIDE     0x5324
@@ -1366,10 +1367,13 @@
 #define PCI_DEVICE_ID_VIA_CX700         0x8324
 #define PCI_DEVICE_ID_VIA_CX700_IDE     0x0581
 #define PCI_DEVICE_ID_VIA_VX800         0x8353
+#define PCI_DEVICE_ID_VIA_VX855         0x8409
 #define PCI_DEVICE_ID_VIA_8371_1        0x8391
 #define PCI_DEVICE_ID_VIA_82C598_1      0x8598
 #define PCI_DEVICE_ID_VIA_838X_1        0xB188
 #define PCI_DEVICE_ID_VIA_83_87XX_1     0xB198
+#define PCI_DEVICE_ID_VIA_C409_IDE      0XC409
+#define PCI_DEVICE_ID_VIA_ANON          0xFFFF
 
 #define PCI_VENDOR_ID_SIEMENS           0x110A
 #define PCI_DEVICE_ID_SIEMENS_DSCC4     0x2102
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 681394f3a0cf..2225c207801c 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -630,7 +630,6 @@ struct user_struct {
         atomic_t inotify_devs;  /* How many inotify devs does this user have opened? */
 #endif
 #ifdef CONFIG_EPOLL
-        atomic_t epoll_devs;    /* The number of epoll descriptors currently open */
         atomic_t epoll_watches; /* The number of file descriptors currently watched */
 #endif
 #ifdef CONFIG_POSIX_MQUEUE
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 2b409c44db83..c7d9bb1832ba 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -237,6 +237,7 @@ extern int hibernate_nvs_alloc(void);
 extern void hibernate_nvs_free(void);
 extern void hibernate_nvs_save(void);
 extern void hibernate_nvs_restore(void);
+extern bool system_entering_hibernation(void);
 #else /* CONFIG_HIBERNATION */
 static inline int swsusp_page_is_forbidden(struct page *p) { return 0; }
 static inline void swsusp_set_page_free(struct page *p) {}
@@ -252,6 +253,7 @@ static inline int hibernate_nvs_alloc(void) { return 0; }
 static inline void hibernate_nvs_free(void) {}
 static inline void hibernate_nvs_save(void) {}
 static inline void hibernate_nvs_restore(void) {}
+static inline bool system_entering_hibernation(void) { return false; }
 #endif /* CONFIG_HIBERNATION */
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 16875f89e6a7..0eda02ff2414 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -108,9 +108,14 @@ struct old_linux_dirent;
         asm ("\t.globl " #alias "\n\t.set " #alias ", " #name "\n"      \
              "\t.globl ." #alias "\n\t.set ." #alias ", ." #name)
 #else
+#ifdef CONFIG_ALPHA
+#define SYSCALL_ALIAS(alias, name)                                      \
+        asm ( #alias " = " #name "\n\t.globl " #alias)
+#else
 #define SYSCALL_ALIAS(alias, name)                                      \
         asm ("\t.globl " #alias "\n\t.set " #alias ", " #name)
 #endif
+#endif
 
 #ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
 
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 85ee9be9361e..88079fd60235 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -418,6 +418,8 @@ struct usb_tt;
  * @autosuspend_disabled: autosuspend disabled by the user
  * @autoresume_disabled: autoresume disabled by the user
  * @skip_sys_resume: skip the next system resume
+ * @wusb_dev: if this is a Wireless USB device, link to the WUSB
+ *      specific data for the device.
  *
  * Notes:
  * Usbcore drivers should not set usbdev->state directly.  Instead use
diff --git a/include/media/videobuf-dma-sg.h b/include/media/videobuf-dma-sg.h
index 90edd22d343c..dda47f0082e9 100644
--- a/include/media/videobuf-dma-sg.h
+++ b/include/media/videobuf-dma-sg.h
@@ -49,7 +49,7 @@ struct scatterlist* videobuf_pages_to_sg(struct page **pages, int nr_pages,
  *      does memory allocation too using vmalloc_32().
  *
  * videobuf_dma_*()
- *      see Documentation/DMA-mapping.txt, these functions to
+ *      see Documentation/PCI/PCI-DMA-mapping.txt, these functions to
  *      basically the same.  The map function does also build a
  *      scatterlist for the buffer (and unmap frees it ...)
  *
diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h
index 2dc2eb2b8e22..296efae3525e 100644
--- a/include/mtd/ubi-user.h
+++ b/include/mtd/ubi-user.h
@@ -40,37 +40,37 @@
  * UBI volume creation
  * ~~~~~~~~~~~~~~~~~~~
  *
- * UBI volumes are created via the %UBI_IOCMKVOL IOCTL command of UBI character
+ * UBI volumes are created via the %UBI_IOCMKVOL ioctl command of UBI character
  * device. A &struct ubi_mkvol_req object has to be properly filled and a
- * pointer to it has to be passed to the IOCTL.
+ * pointer to it has to be passed to the ioctl.
  *
  * UBI volume deletion
  * ~~~~~~~~~~~~~~~~~~~
  *
- * To delete a volume, the %UBI_IOCRMVOL IOCTL command of the UBI character
+ * To delete a volume, the %UBI_IOCRMVOL ioctl command of the UBI character
  * device should be used. A pointer to the 32-bit volume ID hast to be passed
- * to the IOCTL.
+ * to the ioctl.
  *
  * UBI volume re-size
  * ~~~~~~~~~~~~~~~~~~
  *
- * To re-size a volume, the %UBI_IOCRSVOL IOCTL command of the UBI character
+ * To re-size a volume, the %UBI_IOCRSVOL ioctl command of the UBI character
  * device should be used. A &struct ubi_rsvol_req object has to be properly
- * filled and a pointer to it has to be passed to the IOCTL.
+ * filled and a pointer to it has to be passed to the ioctl.
  *
  * UBI volumes re-name
  * ~~~~~~~~~~~~~~~~~~~
  *
  * To re-name several volumes atomically at one go, the %UBI_IOCRNVOL command
  * of the UBI character device should be used. A &struct ubi_rnvol_req object
- * has to be properly filled and a pointer to it has to be passed to the IOCTL.
+ * has to be properly filled and a pointer to it has to be passed to the ioctl.
  *
  * UBI volume update
  * ~~~~~~~~~~~~~~~~~
  *
- * Volume update should be done via the %UBI_IOCVOLUP IOCTL command of the
+ * Volume update should be done via the %UBI_IOCVOLUP ioctl command of the
  * corresponding UBI volume character device. A pointer to a 64-bit update
- * size should be passed to the IOCTL. After this, UBI expects user to write
+ * size should be passed to the ioctl. After this, UBI expects user to write
  * this number of bytes to the volume character device. The update is finished
  * when the claimed number of bytes is passed. So, the volume update sequence
  * is something like:
@@ -80,14 +80,58 @@
  * write(fd, buf, image_size);
  * close(fd);
  *
- * Atomic eraseblock change
+ * Logical eraseblock erase
  * ~~~~~~~~~~~~~~~~~~~~~~~~
  *
- * Atomic eraseblock change operation is done via the %UBI_IOCEBCH IOCTL
- * command of the corresponding UBI volume character device. A pointer to
- * &struct ubi_leb_change_req has to be passed to the IOCTL. Then the user is
- * expected to write the requested amount of bytes. This is similar to the
- * "volume update" IOCTL.
+ * To erase a logical eraseblock, the %UBI_IOCEBER ioctl command of the
+ * corresponding UBI volume character device should be used. This command
+ * unmaps the requested logical eraseblock, makes sure the corresponding
+ * physical eraseblock is successfully erased, and returns.
+ *
+ * Atomic logical eraseblock change
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * Atomic logical eraseblock change operation is called using the %UBI_IOCEBCH
+ * ioctl command of the corresponding UBI volume character device. A pointer to
+ * a &struct ubi_leb_change_req object has to be passed to the ioctl. Then the
+ * user is expected to write the requested amount of bytes (similarly to what
+ * should be done in case of the "volume update" ioctl).
+ *
+ * Logical eraseblock map
+ * ~~~~~~~~~~~~~~~~~~~~~
+ *
+ * To map a logical eraseblock to a physical eraseblock, the %UBI_IOCEBMAP
+ * ioctl command should be used. A pointer to a &struct ubi_map_req object is
+ * expected to be passed. The ioctl maps the requested logical eraseblock to
+ * a physical eraseblock and returns.  Only non-mapped logical eraseblocks can
+ * be mapped. If the logical eraseblock specified in the request is already
+ * mapped to a physical eraseblock, the ioctl fails and returns error.
+ *
+ * Logical eraseblock unmap
+ * ~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * To unmap a logical eraseblock to a physical eraseblock, the %UBI_IOCEBUNMAP
+ * ioctl command should be used. The ioctl unmaps the logical eraseblocks,
+ * schedules corresponding physical eraseblock for erasure, and returns. Unlike
+ * the "LEB erase" command, it does not wait for the physical eraseblock being
+ * erased. Note, the side effect of this is that if an unclean reboot happens
+ * after the unmap ioctl returns, you may find the LEB mapped again to the same
+ * physical eraseblock after the UBI is run again.
+ *
+ * Check if logical eraseblock is mapped
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * To check if a logical eraseblock is mapped to a physical eraseblock, the
+ * %UBI_IOCEBISMAP ioctl command should be used. It returns %0 if the LEB is
+ * not mapped, and %1 if it is mapped.
+ *
+ * Set an UBI volume property
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * To set an UBI volume property the %UBI_IOCSETPROP ioctl command should be
+ * used. A pointer to a &struct ubi_set_prop_req object is expected to be
+ * passed. The object describes which property should be set, and to which value
+ * it should be set.
  */
 
 /*
@@ -101,7 +145,7 @@
 /* Maximum volume name length */
 #define UBI_MAX_VOLUME_NAME 127
 
-/* IOCTL commands of UBI character devices */
+/* ioctl commands of UBI character devices */
 
 #define UBI_IOC_MAGIC 'o'
 
@@ -114,7 +158,7 @@
 /* Re-name volumes */
 #define UBI_IOCRNVOL _IOW(UBI_IOC_MAGIC, 3, struct ubi_rnvol_req)
 
-/* IOCTL commands of the UBI control character device */
+/* ioctl commands of the UBI control character device */
 
 #define UBI_CTRL_IOC_MAGIC 'o'
 
@@ -123,16 +167,24 @@
 /* Detach an MTD device */
 #define UBI_IOCDET _IOW(UBI_CTRL_IOC_MAGIC, 65, int32_t)
 
-/* IOCTL commands of UBI volume character devices */
+/* ioctl commands of UBI volume character devices */
 
 #define UBI_VOL_IOC_MAGIC 'O'
 
 /* Start UBI volume update */
 #define UBI_IOCVOLUP _IOW(UBI_VOL_IOC_MAGIC, 0, int64_t)
-/* An eraseblock erasure command, used for debugging, disabled by default */
+/* LEB erasure command, used for debugging, disabled by default */
 #define UBI_IOCEBER _IOW(UBI_VOL_IOC_MAGIC, 1, int32_t)
-/* An atomic eraseblock change command */
+/* Atomic LEB change command */
 #define UBI_IOCEBCH _IOW(UBI_VOL_IOC_MAGIC, 2, int32_t)
+/* Map LEB command */
+#define UBI_IOCEBMAP _IOW(UBI_VOL_IOC_MAGIC, 3, struct ubi_map_req)
+/* Unmap LEB command */
+#define UBI_IOCEBUNMAP _IOW(UBI_VOL_IOC_MAGIC, 4, int32_t)
+/* Check if LEB is mapped command */
+#define UBI_IOCEBISMAP _IOR(UBI_VOL_IOC_MAGIC, 5, int32_t)
+/* Set an UBI volume property */
+#define UBI_IOCSETPROP _IOW(UBI_VOL_IOC_MAGIC, 6, struct ubi_set_prop_req)
 
 /* Maximum MTD device name length supported by UBI */
 #define MAX_UBI_MTD_NAME_LEN 127
@@ -168,6 +220,16 @@ enum {
         UBI_STATIC_VOLUME  = 4,
 };
 
+/*
+ * UBI set property ioctl constants
+ *
+ * @UBI_PROP_DIRECT_WRITE: allow / disallow user to directly write and
+ *                         erase individual eraseblocks on dynamic volumes
+ */
+enum {
+       UBI_PROP_DIRECT_WRITE = 1,
+};
+
 /**
  * struct ubi_attach_req - attach MTD device request.
  * @ubi_num: UBI device number to create
@@ -305,8 +367,8 @@ struct ubi_rnvol_req {
 } __attribute__ ((packed));
 
 /**
- * struct ubi_leb_change_req - a data structure used in atomic logical
- *                             eraseblock change requests.
+ * struct ubi_leb_change_req - a data structure used in atomic LEB change
+ *                             requests.
  * @lnum: logical eraseblock number to change
  * @bytes: how many bytes will be written to the logical eraseblock
  * @dtype: data type (%UBI_LONGTERM, %UBI_SHORTTERM, %UBI_UNKNOWN)
@@ -319,4 +381,30 @@ struct ubi_leb_change_req {
         int8_t  padding[7];
 } __attribute__ ((packed));
 
+/**
+ * struct ubi_map_req - a data structure used in map LEB requests.
+ * @lnum: logical eraseblock number to unmap
+ * @dtype: data type (%UBI_LONGTERM, %UBI_SHORTTERM, %UBI_UNKNOWN)
+ * @padding: reserved for future, not used, has to be zeroed
+ */
+struct ubi_map_req {
+        int32_t lnum;
+        int8_t  dtype;
+        int8_t  padding[3];
+} __attribute__ ((packed));
+
+
+/**
+ * struct ubi_set_prop_req - a data structure used to set an ubi volume
+ *                           property.
+ * @property: property to set (%UBI_PROP_DIRECT_WRITE)
+ * @padding: reserved for future, not used, has to be zeroed
+ * @value: value to set
+ */
+struct ubi_set_prop_req {
+       uint8_t  property;
+       uint8_t  padding[7];
+       uint64_t value;
+}  __attribute__ ((packed));
+
 #endif /* __UBI_USER_H__ */