21 files changed, 79 insertions, 60 deletions

diff --git a/include/asm-m68knommu/cacheflush.h b/include/asm-m68knommu/cacheflush.h
index 29bc0aad2ebc..87e5dc0413b4 100644
--- a/include/asm-m68knommu/cacheflush.h
+++ b/include/asm-m68knommu/cacheflush.h
@@ -54,28 +54,28 @@ static inline void __flush_cache_all(void)
 #if defined(CONFIG_M527x) || defined(CONFIG_M528x)
         __asm__ __volatile__ (
                 "movel  #0x81000200, %%d0\n\t"
-                "movec  %%d0, %%CACR\n\t"
+                "movec  %%d0, %%CACR\n\t"
                 "nop\n\t"
                 : : : "d0" );
 #endif /* CONFIG_M527x || CONFIG_M528x */
 #if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || defined(CONFIG_M5272)
         __asm__ __volatile__ (
-                "movel  #0x81000100, %%d0\n\t"
-                "movec  %%d0, %%CACR\n\t"
+                "movel  #0x81000100, %%d0\n\t"
+                "movec  %%d0, %%CACR\n\t"
                 "nop\n\t"
                 : : : "d0" );
 #endif /* CONFIG_M5206 || CONFIG_M5206e || CONFIG_M5272 */
 #ifdef CONFIG_M5249
         __asm__ __volatile__ (
-                "movel  #0xa1000200, %%d0\n\t"
-                "movec  %%d0, %%CACR\n\t"
+                "movel  #0xa1000200, %%d0\n\t"
+                "movec  %%d0, %%CACR\n\t"
                 "nop\n\t"
                 : : : "d0" );
 #endif /* CONFIG_M5249 */
 #ifdef CONFIG_M532x
         __asm__ __volatile__ (
-                "movel  #0x81000200, %%d0\n\t"
-                "movec  %%d0, %%CACR\n\t"
+                "movel  #0x81000200, %%d0\n\t"
+                "movec  %%d0, %%CACR\n\t"
                 "nop\n\t"
                 : : : "d0" );
 #endif /* CONFIG_M532x */
diff --git a/include/asm-m68knommu/system.h b/include/asm-m68knommu/system.h
index 039ab3f81732..64c64432bbb8 100644
--- a/include/asm-m68knommu/system.h
+++ b/include/asm-m68knommu/system.h
@@ -104,7 +104,7 @@ asmlinkage void resume(void);
 #define mb()   asm volatile (""   : : :"memory")
 #define rmb()  asm volatile (""   : : :"memory")
 #define wmb()  asm volatile (""   : : :"memory")
-#define set_mb(var, value) do { xchg(&var, value); } while (0)
+#define set_mb(var, value)      ({ (var) = (value); wmb(); })
 
 #ifdef CONFIG_SMP
 #define smp_mb()        mb()
diff --git a/include/asm-powerpc/systbl.h b/include/asm-powerpc/systbl.h
index e996521fb3a6..ae7085c65692 100644
--- a/include/asm-powerpc/systbl.h
+++ b/include/asm-powerpc/systbl.h
@@ -309,8 +309,10 @@ SYSCALL_SPU(getcpu)
 COMPAT_SYS(epoll_pwait)
 COMPAT_SYS_SPU(utimensat)
 COMPAT_SYS_SPU(signalfd)
-SYSCALL(ni_syscall)
+SYSCALL_SPU(timerfd_create)
 SYSCALL_SPU(eventfd)
 COMPAT_SYS_SPU(sync_file_range2)
 COMPAT_SYS(fallocate)
 SYSCALL(subpage_prot)
+COMPAT_SYS_SPU(timerfd_settime)
+COMPAT_SYS_SPU(timerfd_gettime)
diff --git a/include/asm-powerpc/unistd.h b/include/asm-powerpc/unistd.h
index fedc4b8e49e2..ce91bb662063 100644
--- a/include/asm-powerpc/unistd.h
+++ b/include/asm-powerpc/unistd.h
@@ -328,15 +328,17 @@
 #define __NR_epoll_pwait        303
 #define __NR_utimensat          304
 #define __NR_signalfd           305
-#define __NR_timerfd            306
+#define __NR_timerfd_create     306
 #define __NR_eventfd            307
 #define __NR_sync_file_range2   308
 #define __NR_fallocate          309
 #define __NR_subpage_prot       310
+#define __NR_timerfd_settime    311
+#define __NR_timerfd_gettime    312
 
 #ifdef __KERNEL__
 
-#define __NR_syscalls           311
+#define __NR_syscalls           313
 
 #define __NR__exit __NR_exit
 #define NR_syscalls     __NR_syscalls
diff --git a/include/asm-ppc/page.h b/include/asm-ppc/page.h
index ad4c5a1bc9d6..37e4756b6b2d 100644
--- a/include/asm-ppc/page.h
+++ b/include/asm-ppc/page.h
@@ -125,6 +125,8 @@ extern __inline__ int get_order(unsigned long size)
         return 32 - lz;
 }
 
+typedef struct page *pgtable_t;
+
 #endif /* __ASSEMBLY__ */
 
 #define VM_DATA_DEFAULT_FLAGS   (VM_READ | VM_WRITE | VM_EXEC | \
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index 6a22212b4b20..5396c212d8c0 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -48,12 +48,15 @@ void cpa_init(void);
 
 #ifdef CONFIG_DEBUG_RODATA
 void mark_rodata_ro(void);
+extern const int rodata_test_data;
 #endif
+
 #ifdef CONFIG_DEBUG_RODATA_TEST
-void rodata_test(void);
+int rodata_test(void);
 #else
-static inline void rodata_test(void)
+static inline int rodata_test(void)
 {
+        return 0;
 }
 #endif
 
diff --git a/include/asm-x86/kdebug.h b/include/asm-x86/kdebug.h
index dd442a1632c0..99dcbafa1511 100644
--- a/include/asm-x86/kdebug.h
+++ b/include/asm-x86/kdebug.h
@@ -31,7 +31,6 @@ extern void show_trace(struct task_struct *t, struct pt_regs *regs,
                         unsigned long *sp, unsigned long bp);
 extern void __show_regs(struct pt_regs *regs);
 extern void show_regs(struct pt_regs *regs);
-extern void dump_pagetable(unsigned long);
 extern unsigned long oops_begin(void);
 extern void oops_end(unsigned long, struct pt_regs *, int signr);
 
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 97153027207a..2af9ec025015 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -534,8 +534,7 @@ extern void		    audit_log_n_untrustedstring(struct audit_buffer *ab,
                                                         const char *string);
 extern void                 audit_log_d_path(struct audit_buffer *ab,
                                              const char *prefix,
-                                             struct dentry *dentry,
-                                             struct vfsmount *vfsmnt);
+                                             struct path *path);
 extern void                 audit_log_lost(const char *message);
                                 /* Private API (for audit.c only) */
 extern int audit_filter_user(struct netlink_skb_parms *cb, int type);
@@ -552,7 +551,7 @@ extern int audit_enabled;
 #define audit_log_hex(a,b,l) do { ; } while (0)
 #define audit_log_untrustedstring(a,s) do { ; } while (0)
 #define audit_log_n_untrustedstring(a,n,s) do { ; } while (0)
-#define audit_log_d_path(b,p,d,v) do { ; } while (0)
+#define audit_log_d_path(b, p, d) do { ; } while (0)
 #define audit_enabled 0
 #endif
 #endif
diff --git a/include/linux/configfs.h b/include/linux/configfs.h
index 8c6967f3fb11..4b287ad9371a 100644
--- a/include/linux/configfs.h
+++ b/include/linux/configfs.h
@@ -37,6 +37,7 @@
 
 #ifdef __KERNEL__
 
+#include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/list.h>
 #include <linux/kref.h>
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index c2c153f97e8f..6bd646096fa6 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -10,6 +10,7 @@
 #include <linux/rcupdate.h>
 
 struct nameidata;
+struct path;
 struct vfsmount;
 
 /*
@@ -300,8 +301,8 @@ extern int d_validate(struct dentry *, struct dentry *);
  */
 extern char *dynamic_dname(struct dentry *, char *, int, const char *, ...);
 
-extern char * d_path(struct dentry *, struct vfsmount *, char *, int);
-  
+extern char *d_path(struct path *, char *, int);
+
 /* Allocation counts.. */
 
 /**
diff --git a/include/linux/dcookies.h b/include/linux/dcookies.h
index 98c69ab80c84..24c806f12a6c 100644
--- a/include/linux/dcookies.h
+++ b/include/linux/dcookies.h
@@ -13,6 +13,7 @@
 #ifdef CONFIG_PROFILING
  
 #include <linux/dcache.h>
+#include <linux/path.h>
 #include <linux/types.h>
  
 struct dcookie_user;
@@ -43,8 +44,7 @@ void dcookie_unregister(struct dcookie_user * user);
  *
  * Returns 0 on success, with *cookie filled in
  */
-int get_dcookie(struct dentry * dentry, struct vfsmount * vfsmnt,
-        unsigned long * cookie);
+int get_dcookie(struct path *path, unsigned long *cookie);
 
 #else
 
@@ -57,13 +57,12 @@ static inline void dcookie_unregister(struct dcookie_user * user)
 {
         return;
 }
- 
-static inline int get_dcookie(struct dentry * dentry,
-        struct vfsmount * vfsmnt, unsigned long * cookie)
+
+static inline int get_dcookie(struct path *path, unsigned long *cookie)
 {
         return -ENOSYS;
-} 
- 
+}
+
 #endif /* CONFIG_PROFILING */
- 
+
 #endif /* DCOOKIES_H */
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 18cfbf76ec5b..98ffb6ead434 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1284,8 +1284,10 @@ struct super_operations {
  *
  * I_DIRTY_SYNC         Inode is dirty, but doesn't have to be written on
  *                      fdatasync().  i_atime is the usual cause.
- * I_DIRTY_DATASYNC     Inode is dirty and must be written on fdatasync(), f.e.
- *                      because i_size changed.
+ * I_DIRTY_DATASYNC     Data-related inode changes pending. We keep track of
+ *                      these changes separately from I_DIRTY_SYNC so that we
+ *                      don't have to write inode on fdatasync() when only
+ *                      mtime has changed in it.
  * I_DIRTY_PAGES        Inode has dirty pages.  Inode itself may be clean.
  * I_NEW                get_new_inode() sets i_state to I_LOCK|I_NEW.  Both
  *                      are cleared by unlock_new_inode(), called from iget().
diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
index 11a36ceddf73..282f54219129 100644
--- a/include/linux/fs_struct.h
+++ b/include/linux/fs_struct.h
@@ -1,15 +1,13 @@
 #ifndef _LINUX_FS_STRUCT_H
 #define _LINUX_FS_STRUCT_H
 
-struct dentry;
-struct vfsmount;
+#include <linux/path.h>
 
 struct fs_struct {
         atomic_t count;
         rwlock_t lock;
         int umask;
-        struct dentry * root, * pwd, * altroot;
-        struct vfsmount * rootmnt, * pwdmnt, * altrootmnt;
+        struct path root, pwd, altroot;
 };
 
 #define INIT_FS {                               \
@@ -22,8 +20,8 @@ extern struct kmem_cache *fs_cachep;
 
 extern void exit_fs(struct task_struct *);
 extern void set_fs_altroot(void);
-extern void set_fs_root(struct fs_struct *, struct vfsmount *, struct dentry *);
-extern void set_fs_pwd(struct fs_struct *, struct vfsmount *, struct dentry *);
+extern void set_fs_root(struct fs_struct *, struct path *);
+extern void set_fs_pwd(struct fs_struct *, struct path *);
 extern struct fs_struct *copy_fs_struct(struct fs_struct *);
 extern void put_fs_struct(struct fs_struct *);
 
diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index 36c542b70c6d..2cd7fa73d1af 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -310,6 +310,8 @@ static inline ktime_t ktime_sub_us(const ktime_t kt, const u64 usec)
         return ktime_sub_ns(kt, usec * 1000);
 }
 
+extern ktime_t ktime_add_safe(const ktime_t lhs, const ktime_t rhs);
+
 /*
  * The resolution of the clocks. The resolution value is returned in
  * the clock_getres() system call to give application programmers an
diff --git a/include/linux/module.h b/include/linux/module.h
index 330bec08c2c4..819c4e889bf1 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -567,8 +567,7 @@ static inline void print_modules(void)
 {
 }
 
-static inline void module_update_markers(struct module *probe_module,
-                int *refcount)
+static inline void module_update_markers(void)
 {
 }
 
diff --git a/include/linux/namei.h b/include/linux/namei.h
index c13e411491f4..24d88e98a626 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -3,6 +3,7 @@
 
 #include <linux/dcache.h>
 #include <linux/linkage.h>
+#include <linux/path.h>
 
 struct vfsmount;
 
@@ -15,8 +16,7 @@ struct open_intent {
 enum { MAX_NESTED_LINKS = 8 };
 
 struct nameidata {
-        struct dentry   *dentry;
-        struct vfsmount *mnt;
+        struct path     path;
         struct qstr     last;
         unsigned int    flags;
         int             last_type;
@@ -29,11 +29,6 @@ struct nameidata {
         } intent;
 };
 
-struct path {
-        struct vfsmount *mnt;
-        struct dentry *dentry;
-};
-
 /*
  * Type of the last component on LOOKUP_PARENT
  */
@@ -71,8 +66,6 @@ extern int __user_walk_fd(int dfd, const char __user *, unsigned, struct nameida
 extern int path_lookup(const char *, unsigned, struct nameidata *);
 extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
                            const char *, unsigned int, struct nameidata *);
-extern void path_release(struct nameidata *);
-extern void path_release_on_umount(struct nameidata *);
 
 extern int __user_path_lookup_open(const char __user *, unsigned lookup_flags, struct nameidata *nd, int open_flags);
 extern int path_lookup_open(int dfd, const char *name, unsigned lookup_flags, struct nameidata *, int open_flags);
diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h
index 3a1687251367..5431512b2757 100644
--- a/include/linux/nfsd/export.h
+++ b/include/linux/nfsd/export.h
@@ -84,9 +84,8 @@ struct svc_export {
         struct cache_head       h;
         struct auth_domain *    ex_client;
         int                     ex_flags;
-        struct vfsmount *       ex_mnt;
-        struct dentry *         ex_dentry;
-        char *                  ex_path;
+        struct path             ex_path;
+        char                    *ex_pathname;
         uid_t                   ex_anon_uid;
         gid_t                   ex_anon_gid;
         int                     ex_fsid;
@@ -107,8 +106,7 @@ struct svc_expkey {
         int                     ek_fsidtype;
         u32                     ek_fsid[6];
 
-        struct vfsmount *       ek_mnt;
-        struct dentry *         ek_dentry;
+        struct path             ek_path;
 };
 
 #define EX_SECURE(exp)          (!((exp)->ex_flags & NFSEXP_INSECURE_PORT))
diff --git a/include/linux/path.h b/include/linux/path.h
new file mode 100644
index 000000000000..915e0c382a51
--- /dev/null
+++ b/include/linux/path.h
@@ -0,0 +1,15 @@
+#ifndef _LINUX_PATH_H
+#define _LINUX_PATH_H
+
+struct dentry;
+struct vfsmount;
+
+struct path {
+        struct vfsmount *mnt;
+        struct dentry *dentry;
+};
+
+extern void path_get(struct path *);
+extern void path_put(struct path *);
+
+#endif  /* _LINUX_PATH_H */
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index d6a4f69bdc92..d9a9e718ad19 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -269,7 +269,7 @@ extern void kclist_add(struct kcore_list *, void *, size_t);
 #endif
 
 union proc_op {
-        int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **);
+        int (*proc_get_link)(struct inode *, struct path *);
         int (*proc_read)(struct task_struct *task, char *page);
         int (*proc_show)(struct seq_file *m,
                 struct pid_namespace *ns, struct pid *pid,
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 648dfeb444db..67c2563961f3 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -8,8 +8,7 @@
 
 struct seq_operations;
 struct file;
-struct vfsmount;
-struct dentry;
+struct path;
 struct inode;
 
 struct seq_file {
@@ -42,7 +41,7 @@ int seq_puts(struct seq_file *m, const char *s);
 int seq_printf(struct seq_file *, const char *, ...)
         __attribute__ ((format (printf,2,3)));
 
-int seq_path(struct seq_file *, struct vfsmount *, struct dentry *, char *);
+int seq_path(struct seq_file *, struct path *, char *);
 
 int single_open(struct file *, int (*)(struct seq_file *, void *), void *);
 int single_release(struct inode *, struct file *);
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 5e6d3d634d5b..57deecc79d52 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -71,6 +71,7 @@ struct kmem_cache {
 
         /* Allocation and freeing of slabs */
         int objects;            /* Number of objects in slab */
+        gfp_t allocflags;       /* gfp flags to use on each alloc */
         int refcount;           /* Refcount for slab cache destroy */
         void (*ctor)(struct kmem_cache *, void *);
         int inuse;              /* Offset to metadata */
@@ -110,7 +111,7 @@ struct kmem_cache {
  * We keep the general caches in an array of slab caches that are used for
  * 2^x bytes of allocations.
  */
-extern struct kmem_cache kmalloc_caches[PAGE_SHIFT];
+extern struct kmem_cache kmalloc_caches[PAGE_SHIFT + 1];
 
 /*
  * Sorry that the following has to be that ugly but some versions of GCC
@@ -188,12 +189,16 @@ static __always_inline struct kmem_cache *kmalloc_slab(size_t size)
 void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
 void *__kmalloc(size_t size, gfp_t flags);
 
+static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
+{
+        return (void *)__get_free_pages(flags | __GFP_COMP, get_order(size));
+}
+
 static __always_inline void *kmalloc(size_t size, gfp_t flags)
 {
         if (__builtin_constant_p(size)) {
-                if (size > PAGE_SIZE / 2)
-                        return (void *)__get_free_pages(flags | __GFP_COMP,
-                                                        get_order(size));
+                if (size > PAGE_SIZE)
+                        return kmalloc_large(size, flags);
 
                 if (!(flags & SLUB_DMA)) {
                         struct kmem_cache *s = kmalloc_slab(size);
@@ -214,7 +219,7 @@ void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
 static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
 {
         if (__builtin_constant_p(size) &&
-                size <= PAGE_SIZE / 2 && !(flags & SLUB_DMA)) {
+                size <= PAGE_SIZE && !(flags & SLUB_DMA)) {
                         struct kmem_cache *s = kmalloc_slab(size);
 
                 if (!s)