Merge commit 'v2.6.38-rc4' into x86/cpu

Merge reason: pick up the latest fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

20 files changed, 82 insertions, 56 deletions

diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 2296d8b1931f..b0ada6f37dd6 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -1,5 +1,6 @@
 header-y += byteorder/
 header-y += can/
+header-y += caif/
 header-y += dvb/
 header-y += hdlc/
 header-y += isdn/
diff --git a/include/linux/caif/Kbuild b/include/linux/caif/Kbuild
new file mode 100644
index 000000000000..a9cf250689dc
--- /dev/null
+++ b/include/linux/caif/Kbuild
@@ -0,0 +1,2 @@
+header-y += caif_socket.h
+header-y += if_caif.h
diff --git a/include/linux/console.h b/include/linux/console.h
index 9774fe6a1a97..7453cfd593c8 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -139,9 +139,9 @@ extern int update_console_cmdline(char *name, int idx, char *name_new, int idx_n
 extern void register_console(struct console *);
 extern int unregister_console(struct console *);
 extern struct console *console_drivers;
-extern void acquire_console_sem(void);
-extern int try_acquire_console_sem(void);
-extern void release_console_sem(void);
+extern void console_lock(void);
+extern int console_trylock(void);
+extern void console_unlock(void);
 extern void console_conditional_schedule(void);
 extern void console_unblank(void);
 extern struct tty_driver *console_device(int *);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 32b38cd829d3..bd3215940c37 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2555,9 +2555,12 @@ int proc_nr_inodes(struct ctl_table *table, int write,
                    void __user *buffer, size_t *lenp, loff_t *ppos);
 int __init get_filesystem_list(char *buf);
 
+#define __FMODE_EXEC            ((__force int) FMODE_EXEC)
+#define __FMODE_NONOTIFY        ((__force int) FMODE_NONOTIFY)
+
 #define ACC_MODE(x) ("\004\002\006\006"[(x)&O_ACCMODE])
 #define OPEN_FMODE(flag) ((__force fmode_t)(((flag + 1) & O_ACCMODE) | \
-                                            (flag & FMODE_NONOTIFY)))
+                                            (flag & __FMODE_NONOTIFY)))
 
 #endif /* __KERNEL__ */
 #endif /* _LINUX_FS_H */
diff --git a/include/linux/input/bu21013.h b/include/linux/input/bu21013.h
index e470d387dd49..05e03284b92a 100644
--- a/include/linux/input/bu21013.h
+++ b/include/linux/input/bu21013.h
@@ -12,8 +12,6 @@
  * @cs_en:      pointer to the cs enable function
  * @cs_dis:     pointer to the cs disable function
  * @irq_read_val:    pointer to read the pen irq value function
- * @x_max_res: xmax resolution
- * @y_max_res: ymax resolution
  * @touch_x_max: touch x max
  * @touch_y_max: touch y max
  * @cs_pin: chip select pin
@@ -29,8 +27,6 @@ struct bu21013_platform_device {
         int (*cs_en)(int reset_pin);
         int (*cs_dis)(int reset_pin);
         int (*irq_read_val)(void);
-        int x_max_res;
-        int y_max_res;
         int touch_x_max;
         int touch_y_max;
         unsigned int cs_pin;
diff --git a/include/linux/irq.h b/include/linux/irq.h
index abde2527c699..80fcb53057bc 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -74,7 +74,8 @@ typedef	void (*irq_flow_handler_t)(unsigned int irq,
 
 #define IRQF_MODIFY_MASK        \
         (IRQ_TYPE_SENSE_MASK | IRQ_NOPROBE | IRQ_NOREQUEST | \
-         IRQ_NOAUTOEN | IRQ_MOVE_PCNTXT | IRQ_LEVEL)
+         IRQ_NOAUTOEN | IRQ_MOVE_PCNTXT | IRQ_LEVEL | IRQ_NO_BALANCING | \
+         IRQ_PER_CPU)
 
 #ifdef CONFIG_IRQ_PER_CPU
 # define CHECK_IRQ_PER_CPU(var) ((var) & IRQ_PER_CPU)
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index e2f4d6af2125..2fe6e84894a4 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -588,7 +588,7 @@ struct sysinfo {
 
 /**
  * BUILD_BUG_ON - break compile if a condition is true.
- * @cond: the condition which the compiler should know is false.
+ * @condition: the condition which the compiler should know is false.
  *
  * If you have some code which relies on certain constants being equal, or
  * other compile-time-evaluated condition, you should use BUILD_BUG_ON to
diff --git a/include/linux/module.h b/include/linux/module.h
index e7c6385c6683..9bdf27c7615b 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -377,7 +377,7 @@ struct module
            keeping pointers to this stuff */
         char *args;
 #ifdef CONFIG_TRACEPOINTS
-        struct tracepoint *tracepoints;
+        struct tracepoint * const *tracepoints_ptrs;
         unsigned int num_tracepoints;
 #endif
 #ifdef HAVE_JUMP_LABEL
@@ -389,7 +389,7 @@ struct module
         unsigned int num_trace_bprintk_fmt;
 #endif
 #ifdef CONFIG_EVENT_TRACING
-        struct ftrace_event_call *trace_events;
+        struct ftrace_event_call **trace_events;
         unsigned int num_trace_events;
 #endif
 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
diff --git a/include/linux/mroute.h b/include/linux/mroute.h
index 0fa7a3a874c8..b21d567692b2 100644
--- a/include/linux/mroute.h
+++ b/include/linux/mroute.h
@@ -150,6 +150,7 @@ static inline int ip_mroute_opt(int opt)
 extern int ip_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
 extern int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
 extern int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);
+extern int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
 extern int ip_mr_init(void);
 #else
 static inline
diff --git a/include/linux/mroute6.h b/include/linux/mroute6.h
index 6091ab77f388..9d2deb200f54 100644
--- a/include/linux/mroute6.h
+++ b/include/linux/mroute6.h
@@ -136,6 +136,7 @@ extern int ip6_mroute_setsockopt(struct sock *, int, char __user *, unsigned int
 extern int ip6_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
 extern int ip6_mr_input(struct sk_buff *skb);
 extern int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg);
+extern int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
 extern int ip6_mr_init(void);
 extern void ip6_mr_cleanup(void);
 #else
diff --git a/include/linux/nfsacl.h b/include/linux/nfsacl.h
index f321b578edeb..fabcb1e5c460 100644
--- a/include/linux/nfsacl.h
+++ b/include/linux/nfsacl.h
@@ -51,10 +51,10 @@ nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default)
         return w;
 }
 
-extern unsigned int
+extern int
 nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
               struct posix_acl *acl, int encode_entries, int typeflag);
-extern unsigned int
+extern int
 nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt,
               struct posix_acl **pacl);
 
diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
index d68283a898bb..54211c1cd926 100644
--- a/include/linux/posix_acl.h
+++ b/include/linux/posix_acl.h
@@ -71,6 +71,7 @@ posix_acl_release(struct posix_acl *acl)
 
 /* posix_acl.c */
 
+extern void posix_acl_init(struct posix_acl *, int);
 extern struct posix_acl *posix_acl_alloc(int, gfp_t);
 extern struct posix_acl *posix_acl_clone(const struct posix_acl *, gfp_t);
 extern int posix_acl_valid(const struct posix_acl *);
diff --git a/include/linux/res_counter.h b/include/linux/res_counter.h
index fcb9884df618..a5930cb66145 100644
--- a/include/linux/res_counter.h
+++ b/include/linux/res_counter.h
@@ -182,6 +182,26 @@ static inline bool res_counter_check_under_limit(struct res_counter *cnt)
         return ret;
 }
 
+/**
+ * res_counter_check_margin - check if the counter allows charging
+ * @cnt: the resource counter to check
+ * @bytes: the number of bytes to check the remaining space against
+ *
+ * Returns a boolean value on whether the counter can be charged
+ * @bytes or whether this would exceed the limit.
+ */
+static inline bool res_counter_check_margin(struct res_counter *cnt,
+                                            unsigned long bytes)
+{
+        bool ret;
+        unsigned long flags;
+
+        spin_lock_irqsave(&cnt->lock, flags);
+        ret = cnt->limit - cnt->usage >= bytes;
+        spin_unlock_irqrestore(&cnt->lock, flags);
+        return ret;
+}
+
 static inline bool res_counter_check_under_soft_limit(struct res_counter *cnt)
 {
         bool ret;
diff --git a/include/linux/sunrpc/bc_xprt.h b/include/linux/sunrpc/bc_xprt.h
index c50b458b8a3f..082884295f80 100644
--- a/include/linux/sunrpc/bc_xprt.h
+++ b/include/linux/sunrpc/bc_xprt.h
@@ -47,14 +47,6 @@ static inline int svc_is_backchannel(const struct svc_rqst *rqstp)
                 return 1;
         return 0;
 }
-static inline struct nfs4_sessionid *bc_xprt_sid(struct svc_rqst *rqstp)
-{
-        if (svc_is_backchannel(rqstp))
-                return (struct nfs4_sessionid *)
-                        rqstp->rq_server->sv_bc_xprt->xpt_bc_sid;
-        return NULL;
-}
-
 #else /* CONFIG_NFS_V4_1 */
 static inline int xprt_setup_backchannel(struct rpc_xprt *xprt,
                                          unsigned int min_reqs)
@@ -67,11 +59,6 @@ static inline int svc_is_backchannel(const struct svc_rqst *rqstp)
         return 0;
 }
 
-static inline struct nfs4_sessionid *bc_xprt_sid(struct svc_rqst *rqstp)
-{
-        return NULL;
-}
-
 static inline void xprt_free_bc_request(struct rpc_rqst *req)
 {
 }
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index 059877b4d85b..7ad9751a0d87 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -77,7 +77,6 @@ struct svc_xprt {
         size_t                  xpt_remotelen;  /* length of address */
         struct rpc_wait_queue   xpt_bc_pending; /* backchannel wait queue */
         struct list_head        xpt_users;      /* callbacks on free */
-        void                    *xpt_bc_sid;    /* back channel session ID */
 
         struct net              *xpt_net;
         struct rpc_xprt         *xpt_bc_xprt;   /* NFSv4.1 backchannel */
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 18cd0684fc4e..98664db1be47 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -125,39 +125,37 @@ extern struct trace_event_functions enter_syscall_print_funcs;
 extern struct trace_event_functions exit_syscall_print_funcs;
 
 #define SYSCALL_TRACE_ENTER_EVENT(sname)                                \
-        static struct syscall_metadata                                  \
-        __attribute__((__aligned__(4))) __syscall_meta_##sname;         \
+        static struct syscall_metadata __syscall_meta_##sname;          \
         static struct ftrace_event_call __used                          \
-          __attribute__((__aligned__(4)))                               \
-          __attribute__((section("_ftrace_events")))                    \
           event_enter_##sname = {                                       \
                 .name                   = "sys_enter"#sname,            \
                 .class                  = &event_class_syscall_enter,   \
                 .event.funcs            = &enter_syscall_print_funcs,   \
                 .data                   = (void *)&__syscall_meta_##sname,\
         };                                                              \
+        static struct ftrace_event_call __used                          \
+          __attribute__((section("_ftrace_events")))                    \
+         *__event_enter_##sname = &event_enter_##sname;                 \
         __TRACE_EVENT_FLAGS(enter_##sname, TRACE_EVENT_FL_CAP_ANY)
 
 #define SYSCALL_TRACE_EXIT_EVENT(sname)                                 \
-        static struct syscall_metadata                                  \
-        __attribute__((__aligned__(4))) __syscall_meta_##sname;         \
+        static struct syscall_metadata __syscall_meta_##sname;          \
         static struct ftrace_event_call __used                          \
-          __attribute__((__aligned__(4)))                               \
-          __attribute__((section("_ftrace_events")))                    \
           event_exit_##sname = {                                        \
                 .name                   = "sys_exit"#sname,             \
                 .class                  = &event_class_syscall_exit,    \
                 .event.funcs            = &exit_syscall_print_funcs,    \
                 .data                   = (void *)&__syscall_meta_##sname,\
         };                                                              \
+        static struct ftrace_event_call __used                          \
+          __attribute__((section("_ftrace_events")))                    \
+        *__event_exit_##sname = &event_exit_##sname;                    \
         __TRACE_EVENT_FLAGS(exit_##sname, TRACE_EVENT_FL_CAP_ANY)
 
 #define SYSCALL_METADATA(sname, nb)                             \
         SYSCALL_TRACE_ENTER_EVENT(sname);                       \
         SYSCALL_TRACE_EXIT_EVENT(sname);                        \
         static struct syscall_metadata __used                   \
-          __attribute__((__aligned__(4)))                       \
-          __attribute__((section("__syscalls_metadata")))       \
           __syscall_meta_##sname = {                            \
                 .name           = "sys"#sname,                  \
                 .nb_args        = nb,                           \
@@ -166,14 +164,15 @@ extern struct trace_event_functions exit_syscall_print_funcs;
                 .enter_event    = &event_enter_##sname,         \
                 .exit_event     = &event_exit_##sname,          \
                 .enter_fields   = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
-        };
+        };                                                      \
+        static struct syscall_metadata __used                   \
+          __attribute__((section("__syscalls_metadata")))       \
+         *__p_syscall_meta_##sname = &__syscall_meta_##sname;
 
 #define SYSCALL_DEFINE0(sname)                                  \
         SYSCALL_TRACE_ENTER_EVENT(_##sname);                    \
         SYSCALL_TRACE_EXIT_EVENT(_##sname);                     \
         static struct syscall_metadata __used                   \
-          __attribute__((__aligned__(4)))                       \
-          __attribute__((section("__syscalls_metadata")))       \
           __syscall_meta__##sname = {                           \
                 .name           = "sys_"#sname,                 \
                 .nb_args        = 0,                            \
@@ -181,6 +180,9 @@ extern struct trace_event_functions exit_syscall_print_funcs;
                 .exit_event     = &event_exit__##sname,         \
                 .enter_fields   = LIST_HEAD_INIT(__syscall_meta__##sname.enter_fields), \
         };                                                      \
+        static struct syscall_metadata __used                   \
+          __attribute__((section("__syscalls_metadata")))       \
+         *__p_syscall_meta_##sname = &__syscall_meta__##sname;  \
         asmlinkage long sys_##sname(void)
 #else
 #define SYSCALL_DEFINE0(name)      asmlinkage long sys_##name(void)
diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 387fa7d05c98..7faf933cced7 100644
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -17,6 +17,9 @@
 #include <linux/errno.h>
 #include <linux/types.h>
 
+/* Enable/disable SYSRQ support by default (0==no, 1==yes). */
+#define SYSRQ_DEFAULT_ENABLE    1
+
 /* Possible values of bitmask for enabling sysrq functions */
 /* 0x0001 is reserved for enable everything */
 #define SYSRQ_ENABLE_LOG        0x0002
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index c6814616653b..97c84a58efb8 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -33,12 +33,7 @@ struct tracepoint {
         void (*regfunc)(void);
         void (*unregfunc)(void);
         struct tracepoint_func __rcu *funcs;
-} __attribute__((aligned(32)));         /*
-                                         * Aligned on 32 bytes because it is
-                                         * globally visible and gcc happily
-                                         * align these on the structure size.
-                                         * Keep in sync with vmlinux.lds.h.
-                                         */
+};
 
 /*
  * Connect a probe to a tracepoint.
@@ -61,15 +56,15 @@ extern void tracepoint_probe_update_all(void);
 
 struct tracepoint_iter {
         struct module *module;
-        struct tracepoint *tracepoint;
+        struct tracepoint * const *tracepoint;
 };
 
 extern void tracepoint_iter_start(struct tracepoint_iter *iter);
 extern void tracepoint_iter_next(struct tracepoint_iter *iter);
 extern void tracepoint_iter_stop(struct tracepoint_iter *iter);
 extern void tracepoint_iter_reset(struct tracepoint_iter *iter);
-extern int tracepoint_get_iter_range(struct tracepoint **tracepoint,
-        struct tracepoint *begin, struct tracepoint *end);
+extern int tracepoint_get_iter_range(struct tracepoint * const **tracepoint,
+        struct tracepoint * const *begin, struct tracepoint * const *end);
 
 /*
  * tracepoint_synchronize_unregister must be called between the last tracepoint
@@ -84,11 +79,13 @@ static inline void tracepoint_synchronize_unregister(void)
 #define PARAMS(args...) args
 
 #ifdef CONFIG_TRACEPOINTS
-extern void tracepoint_update_probe_range(struct tracepoint *begin,
-        struct tracepoint *end);
+extern
+void tracepoint_update_probe_range(struct tracepoint * const *begin,
+        struct tracepoint * const *end);
 #else
-static inline void tracepoint_update_probe_range(struct tracepoint *begin,
-        struct tracepoint *end)
+static inline
+void tracepoint_update_probe_range(struct tracepoint * const *begin,
+        struct tracepoint * const *end)
 { }
 #endif /* CONFIG_TRACEPOINTS */
 
@@ -174,12 +171,20 @@ do_trace:								\
         {                                                               \
         }
 
+/*
+ * We have no guarantee that gcc and the linker won't up-align the tracepoint
+ * structures, so we create an array of pointers that will be used for iteration
+ * on the tracepoints.
+ */
 #define DEFINE_TRACE_FN(name, reg, unreg)                               \
         static const char __tpstrtab_##name[]                           \
         __attribute__((section("__tracepoints_strings"))) = #name;      \
         struct tracepoint __tracepoint_##name                           \
-        __attribute__((section("__tracepoints"), aligned(32))) =        \
-                { __tpstrtab_##name, 0, reg, unreg, NULL }
+        __attribute__((section("__tracepoints"))) =                     \
+                { __tpstrtab_##name, 0, reg, unreg, NULL };             \
+        static struct tracepoint * const __tracepoint_ptr_##name __used \
+        __attribute__((section("__tracepoints_ptrs"))) =                \
+                &__tracepoint_##name;
 
 #define DEFINE_TRACE(name)                                              \
         DEFINE_TRACE_FN(name, NULL, NULL);
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index dd6ee49a0844..a854fe89484e 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -112,6 +112,7 @@ struct usb_hcd {
         /* Flags that get set only during HCD registration or removal. */
         unsigned                rh_registered:1;/* is root hub registered? */
         unsigned                rh_pollable:1;  /* may we poll the root hub? */
+        unsigned                msix_enabled:1; /* driver has MSI-X enabled? */
 
         /* The next flag is a stopgap, to be removed when all the HCDs
          * support the new root-hub polling mechanism. */
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 16d682f4f7c3..c9049139a7a5 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -347,6 +347,9 @@ extern int usb_serial_generic_prepare_write_buffer(struct usb_serial_port *port,
 extern int usb_serial_handle_sysrq_char(struct usb_serial_port *port,
                                         unsigned int ch);
 extern int usb_serial_handle_break(struct usb_serial_port *port);
+extern void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port,
+                                         struct tty_struct *tty,
+                                         unsigned int status);
 
 
 extern int usb_serial_bus_register(struct usb_serial_driver *device);