Merge commit 'v3.7-rc1' into stable/for-linus-3.7

* commit 'v3.7-rc1': (10892 commits)
  Linux 3.7-rc1
  x86, boot: Explicitly include autoconf.h for hostprogs
  perf: Fix UAPI fallout
  ARM: config: make sure that platforms are ordered by option string
  ARM: config: sort select statements alphanumerically
  UAPI: (Scripted) Disintegrate include/linux/byteorder
  UAPI: (Scripted) Disintegrate include/linux
  UAPI: Unexport linux/blk_types.h
  UAPI: Unexport part of linux/ppp-comp.h
  perf: Handle new rbtree implementation
  procfs: don't need a PATH_MAX allocation to hold a string representation of an int
  vfs: embed struct filename inside of names_cache allocation if possible
  audit: make audit_inode take struct filename
  vfs: make path_openat take a struct filename pointer
  vfs: turn do_path_lookup into wrapper around struct filename variant
  audit: allow audit code to satisfy getname requests from its names_list
  vfs: define struct filename and have getname() return it
  btrfs: Fix compilation with user namespace support enabled
  userns: Fix posix_acl_file_xattr_userns gid conversion
  userns: Properly print bluetooth socket uids
  ...

1 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 83c44eefe698..68a04a343cad 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -13,6 +13,7 @@ struct file;
 struct path;
 struct inode;
 struct dentry;
+struct user_namespace;
 
 struct seq_file {
         char *buf;
@@ -25,6 +26,9 @@ struct seq_file {
         struct mutex lock;
         const struct seq_operations *op;
         int poll_event;
+#ifdef CONFIG_USER_NS
+        struct user_namespace *user_ns;
+#endif
         void *private;
 };
 
@@ -128,6 +132,16 @@ int seq_put_decimal_ull(struct seq_file *m, char delimiter,
 int seq_put_decimal_ll(struct seq_file *m, char delimiter,
                         long long num);
 
+static inline struct user_namespace *seq_user_ns(struct seq_file *seq)
+{
+#ifdef CONFIG_USER_NS
+        return seq->user_ns;
+#else
+        extern struct user_namespace init_user_ns;
+        return &init_user_ns;
+#endif
+}
+
 #define SEQ_START_TOKEN ((void *)1)
 /*
  * Helpers for iteration over list_head-s in seq_files