Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits)
  reiserfs: Properly display mount options in /proc/mounts
  vfs: prevent remount read-only if pending removes
  vfs: count unlinked inodes
  vfs: protect remounting superblock read-only
  vfs: keep list of mounts for each superblock
  vfs: switch ->show_options() to struct dentry *
  vfs: switch ->show_path() to struct dentry *
  vfs: switch ->show_devname() to struct dentry *
  vfs: switch ->show_stats to struct dentry *
  switch security_path_chmod() to struct path *
  vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
  vfs: trim includes a bit
  switch mnt_namespace ->root to struct mount
  vfs: take /proc/*/mounts and friends to fs/proc_namespace.c
  vfs: opencode mntget() mnt_set_mountpoint()
  vfs: spread struct mount - remaining argument of next_mnt()
  vfs: move fsnotify junk to struct mount
  vfs: move mnt_devname
  vfs: move mnt_list to struct mount
  vfs: switch pnode.h macros to struct mount *
  ...

1 files changed, 76 insertions, 0 deletions

diff --git a/fs/mount.h b/fs/mount.h
new file mode 100644
index 000000000000..4ef36d93e5a2
--- /dev/null
+++ b/fs/mount.h
@@ -0,0 +1,76 @@
+#include <linux/mount.h>
+#include <linux/seq_file.h>
+#include <linux/poll.h>
+
+struct mnt_namespace {
+        atomic_t                count;
+        struct mount *  root;
+        struct list_head        list;
+        wait_queue_head_t poll;
+        int event;
+};
+
+struct mnt_pcp {
+        int mnt_count;
+        int mnt_writers;
+};
+
+struct mount {
+        struct list_head mnt_hash;
+        struct mount *mnt_parent;
+        struct dentry *mnt_mountpoint;
+        struct vfsmount mnt;
+#ifdef CONFIG_SMP
+        struct mnt_pcp __percpu *mnt_pcp;
+        atomic_t mnt_longterm;          /* how many of the refs are longterm */
+#else
+        int mnt_count;
+        int mnt_writers;
+#endif
+        struct list_head mnt_mounts;    /* list of children, anchored here */
+        struct list_head mnt_child;     /* and going through their mnt_child */
+        struct list_head mnt_instance;  /* mount instance on sb->s_mounts */
+        const char *mnt_devname;        /* Name of device e.g. /dev/dsk/hda1 */
+        struct list_head mnt_list;
+        struct list_head mnt_expire;    /* link in fs-specific expiry list */
+        struct list_head mnt_share;     /* circular list of shared mounts */
+        struct list_head mnt_slave_list;/* list of slave mounts */
+        struct list_head mnt_slave;     /* slave list entry */
+        struct mount *mnt_master;       /* slave is on master->mnt_slave_list */
+        struct mnt_namespace *mnt_ns;   /* containing namespace */
+#ifdef CONFIG_FSNOTIFY
+        struct hlist_head mnt_fsnotify_marks;
+        __u32 mnt_fsnotify_mask;
+#endif
+        int mnt_id;                     /* mount identifier */
+        int mnt_group_id;               /* peer group identifier */
+        int mnt_expiry_mark;            /* true if marked for expiry */
+        int mnt_pinned;
+        int mnt_ghosts;
+};
+
+static inline struct mount *real_mount(struct vfsmount *mnt)
+{
+        return container_of(mnt, struct mount, mnt);
+}
+
+static inline int mnt_has_parent(struct mount *mnt)
+{
+        return mnt != mnt->mnt_parent;
+}
+
+extern struct mount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
+
+static inline void get_mnt_ns(struct mnt_namespace *ns)
+{
+        atomic_inc(&ns->count);
+}
+
+struct proc_mounts {
+        struct seq_file m; /* must be the first element */
+        struct mnt_namespace *ns;
+        struct path root;
+        int (*show)(struct seq_file *, struct vfsmount *);
+};
+
+extern const struct seq_operations mounts_op;