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

Pull fourth vfs update from Al Viro:
 "d_inode() annotations from David Howells (sat in for-next since before
  the beginning of merge window) + four assorted fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  RCU pathwalk breakage when running into a symlink overmounting something
  fix I_DIO_WAKEUP definition
  direct-io: only inc/dec inode->i_dio_count for file systems
  fs/9p: fix readdir()
  VFS: assorted d_backing_inode() annotations
  VFS: fs/inode.c helpers: d_inode() annotations
  VFS: fs/cachefiles: d_backing_inode() annotations
  VFS: fs library helpers: d_inode() annotations
  VFS: assorted weird filesystems: d_inode() annotations
  VFS: normal filesystems (and lustre): d_inode() annotations
  VFS: security/: d_inode() annotations
  VFS: security/: d_backing_inode() annotations
  VFS: net/: d_inode() annotations
  VFS: net/unix: d_backing_inode() annotations
  VFS: kernel/: d_inode() annotations
  VFS: audit: d_backing_inode() annotations
  VFS: Fix up some ->d_inode accesses in the chelsio driver
  VFS: Cachefiles should perform fs modifications on the top layer only
  VFS: AF_UNIX sockets should call mknod on the top layer only

8 files changed, 19 insertions, 19 deletions

diff --git a/kernel/audit.c b/kernel/audit.c
index ab5745ddf962..1c13e4267de6 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1928,7 +1928,7 @@ void audit_log_link_denied(const char *operation, struct path *link)
 
         /* Generate AUDIT_PATH record with object. */
         name->type = AUDIT_TYPE_NORMAL;
-        audit_copy_inode(name, link->dentry, link->dentry->d_inode);
+        audit_copy_inode(name, link->dentry, d_backing_inode(link->dentry));
         audit_log_name(current->audit_context, name, link, 0, NULL);
 out:
         kfree(name);
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index 71fd1f289885..b0f9877273fc 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -577,7 +577,7 @@ int audit_remove_tree_rule(struct audit_krule *rule)
 
 static int compare_root(struct vfsmount *mnt, void *arg)
 {
-        return mnt->mnt_root->d_inode == arg;
+        return d_backing_inode(mnt->mnt_root) == arg;
 }
 
 void audit_trim_trees(void)
@@ -649,7 +649,7 @@ void audit_put_tree(struct audit_tree *tree)
 
 static int tag_mount(struct vfsmount *mnt, void *arg)
 {
-        return tag_chunk(mnt->mnt_root->d_inode, arg);
+        return tag_chunk(d_backing_inode(mnt->mnt_root), arg);
 }
 
 /*
diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
index ad9c1682f616..6e30024d9aac 100644
--- a/kernel/audit_watch.c
+++ b/kernel/audit_watch.c
@@ -146,7 +146,7 @@ int audit_watch_compare(struct audit_watch *watch, unsigned long ino, dev_t dev)
 /* Initialize a parent watch entry. */
 static struct audit_parent *audit_init_parent(struct path *path)
 {
-        struct inode *inode = path->dentry->d_inode;
+        struct inode *inode = d_backing_inode(path->dentry);
         struct audit_parent *parent;
         int ret;
 
@@ -361,11 +361,11 @@ static int audit_get_nd(struct audit_watch *watch, struct path *parent)
         struct dentry *d = kern_path_locked(watch->path, parent);
         if (IS_ERR(d))
                 return PTR_ERR(d);
-        mutex_unlock(&parent->dentry->d_inode->i_mutex);
-        if (d->d_inode) {
+        mutex_unlock(&d_backing_inode(parent->dentry)->i_mutex);
+        if (d_is_positive(d)) {
                 /* update watch filter fields */
-                watch->dev = d->d_inode->i_sb->s_dev;
-                watch->ino = d->d_inode->i_ino;
+                watch->dev = d_backing_inode(d)->i_sb->s_dev;
+                watch->ino = d_backing_inode(d)->i_ino;
         }
         dput(d);
         return 0;
@@ -426,7 +426,7 @@ int audit_add_watch(struct audit_krule *krule, struct list_head **list)
                 return ret;
 
         /* either find an old parent or attach a new one */
-        parent = audit_find_parent(parent_path.dentry->d_inode);
+        parent = audit_find_parent(d_backing_inode(parent_path.dentry));
         if (!parent) {
                 parent = audit_init_parent(&parent_path);
                 if (IS_ERR(parent)) {
@@ -482,7 +482,7 @@ static int audit_watch_handle_event(struct fsnotify_group *group,
 
         switch (data_type) {
         case (FSNOTIFY_EVENT_PATH):
-                inode = ((struct path *)data)->dentry->d_inode;
+                inode = d_backing_inode(((struct path *)data)->dentry);
                 break;
         case (FSNOTIFY_EVENT_INODE):
                 inode = (struct inode *)data;
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 84c74d08c62b..9fb9d1cb83ce 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1629,7 +1629,7 @@ retry:
         rcu_read_lock();
         seq = read_seqbegin(&rename_lock);
         for(;;) {
-                struct inode *inode = d->d_inode;
+                struct inode *inode = d_backing_inode(d);
                 if (inode && unlikely(!hlist_empty(&inode->i_fsnotify_marks))) {
                         struct audit_chunk *chunk;
                         chunk = audit_tree_lookup(inode);
@@ -1754,7 +1754,7 @@ void __audit_inode(struct filename *name, const struct dentry *dentry,
                    unsigned int flags)
 {
         struct audit_context *context = current->audit_context;
-        const struct inode *inode = dentry->d_inode;
+        const struct inode *inode = d_backing_inode(dentry);
         struct audit_names *n;
         bool parent = flags & AUDIT_INODE_PARENT;
 
@@ -1853,7 +1853,7 @@ void __audit_inode_child(const struct inode *parent,
                          const unsigned char type)
 {
         struct audit_context *context = current->audit_context;
-        const struct inode *inode = dentry->d_inode;
+        const struct inode *inode = d_backing_inode(dentry);
         const char *dname = dentry->d_name.name;
         struct audit_names *n, *found_parent = NULL, *found_child = NULL;
 
diff --git a/kernel/relay.c b/kernel/relay.c
index 5a56d3c8dc03..e9dbaeb8fd65 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -407,7 +407,7 @@ static inline void relay_set_buf_dentry(struct rchan_buf *buf,
                                         struct dentry *dentry)
 {
         buf->dentry = dentry;
-        buf->dentry->d_inode->i_size = buf->early_bytes;
+        d_inode(buf->dentry)->i_size = buf->early_bytes;
 }
 
 static struct dentry *relay_create_buf_file(struct rchan *chan,
@@ -733,7 +733,7 @@ size_t relay_switch_subbuf(struct rchan_buf *buf, size_t length)
                 buf->padding[old_subbuf] = buf->prev_padding;
                 buf->subbufs_produced++;
                 if (buf->dentry)
-                        buf->dentry->d_inode->i_size +=
+                        d_inode(buf->dentry)->i_size +=
                                 buf->chan->subbuf_size -
                                 buf->padding[old_subbuf];
                 else
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 91eecaaa43e0..05330494a0df 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6079,7 +6079,7 @@ trace_create_cpu_file(const char *name, umode_t mode, struct dentry *parent,
         struct dentry *ret = trace_create_file(name, mode, parent, data, fops);
 
         if (ret) /* See tracing_get_cpu() */
-                ret->d_inode->i_cdev = (void *)(cpu + 1);
+                d_inode(ret)->i_cdev = (void *)(cpu + 1);
         return ret;
 }
 
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 3ab69fb72b85..c4de47fc5cca 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -494,8 +494,8 @@ static void remove_event_file_dir(struct ftrace_event_file *file)
         if (dir) {
                 spin_lock(&dir->d_lock);        /* probably unneeded */
                 list_for_each_entry(child, &dir->d_subdirs, d_child) {
-                        if (child->d_inode)     /* probably unneeded */
-                                child->d_inode->i_private = NULL;
+                        if (d_really_is_positive(child))        /* probably unneeded */
+                                d_inode(child)->i_private = NULL;
                 }
                 spin_unlock(&dir->d_lock);
 
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index d60fe62ec4fa..6dd022c7b5bc 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -443,7 +443,7 @@ static int create_trace_uprobe(int argc, char **argv)
         if (ret)
                 goto fail_address_parse;
 
-        inode = igrab(path.dentry->d_inode);
+        inode = igrab(d_inode(path.dentry));
         path_put(&path);
 
         if (!inode || !S_ISREG(inode->i_mode)) {