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

1 files changed, 25 insertions, 25 deletions

diff --git a/security/security.c b/security/security.c
index 730ac65a5737..8e9b1f4b9b45 100644
--- a/security/security.c
+++ b/security/security.c
@@ -410,7 +410,7 @@ EXPORT_SYMBOL(security_old_inode_init_security);
 int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
 			unsigned int dev)
 {
-	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 		return 0;
 	return security_ops->path_mknod(dir, dentry, mode, dev);
 }
@@ -418,7 +418,7 @@ EXPORT_SYMBOL(security_path_mknod);
 
 int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
 {
-	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 		return 0;
 	return security_ops->path_mkdir(dir, dentry, mode);
 }
@@ -426,14 +426,14 @@ EXPORT_SYMBOL(security_path_mkdir);
 
 int security_path_rmdir(struct path *dir, struct dentry *dentry)
 {
-	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 		return 0;
 	return security_ops->path_rmdir(dir, dentry);
 }
 
 int security_path_unlink(struct path *dir, struct dentry *dentry)
 {
-	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 		return 0;
 	return security_ops->path_unlink(dir, dentry);
 }
@@ -442,7 +442,7 @@ EXPORT_SYMBOL(security_path_unlink);
 int security_path_symlink(struct path *dir, struct dentry *dentry,
 			  const char *old_name)
 {
-	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 		return 0;
 	return security_ops->path_symlink(dir, dentry, old_name);
 }
@@ -450,7 +450,7 @@ int security_path_symlink(struct path *dir, struct dentry *dentry,
 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 		       struct dentry *new_dentry)
 {
-	if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
 		return 0;
 	return security_ops->path_link(old_dentry, new_dir, new_dentry);
 }
@@ -459,8 +459,8 @@ int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
 			 struct path *new_dir, struct dentry *new_dentry,
 			 unsigned int flags)
 {
-	if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
-		     (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
+	if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
+		     (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
 		return 0;
 
 	if (flags & RENAME_EXCHANGE) {
@@ -477,21 +477,21 @@ EXPORT_SYMBOL(security_path_rename);
 
 int security_path_truncate(struct path *path)
 {
-	if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
 		return 0;
 	return security_ops->path_truncate(path);
 }
 
 int security_path_chmod(struct path *path, umode_t mode)
 {
-	if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
 		return 0;
 	return security_ops->path_chmod(path, mode);
 }
 
 int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
 {
-	if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
 		return 0;
 	return security_ops->path_chown(path, uid, gid);
 }
@@ -513,14 +513,14 @@ EXPORT_SYMBOL_GPL(security_inode_create);
 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 			 struct dentry *new_dentry)
 {
-	if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
 		return 0;
 	return security_ops->inode_link(old_dentry, dir, new_dentry);
 }
 
 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
 {
-	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 		return 0;
 	return security_ops->inode_unlink(dir, dentry);
 }
@@ -543,7 +543,7 @@ EXPORT_SYMBOL_GPL(security_inode_mkdir);
 
 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
 {
-	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 		return 0;
 	return security_ops->inode_rmdir(dir, dentry);
 }
@@ -559,8 +559,8 @@ int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 			   struct inode *new_dir, struct dentry *new_dentry,
 			   unsigned int flags)
 {
-        if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
-            (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
+        if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
+            (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
 		return 0;
 
 	if (flags & RENAME_EXCHANGE) {
@@ -576,14 +576,14 @@ int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 
 int security_inode_readlink(struct dentry *dentry)
 {
-	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 		return 0;
 	return security_ops->inode_readlink(dentry);
 }
 
 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
-	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 		return 0;
 	return security_ops->inode_follow_link(dentry, nd);
 }
@@ -599,7 +599,7 @@ int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
 {
 	int ret;
 
-	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 		return 0;
 	ret = security_ops->inode_setattr(dentry, attr);
 	if (ret)
@@ -610,7 +610,7 @@ EXPORT_SYMBOL_GPL(security_inode_setattr);
 
 int security_inode_getattr(const struct path *path)
 {
-	if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
 		return 0;
 	return security_ops->inode_getattr(path);
 }
@@ -620,7 +620,7 @@ int security_inode_setxattr(struct dentry *dentry, const char *name,
 {
 	int ret;
 
-	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 		return 0;
 	ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
 	if (ret)
@@ -634,7 +634,7 @@ int security_inode_setxattr(struct dentry *dentry, const char *name,
 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 				  const void *value, size_t size, int flags)
 {
-	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 		return;
 	security_ops->inode_post_setxattr(dentry, name, value, size, flags);
 	evm_inode_post_setxattr(dentry, name, value, size);
@@ -642,14 +642,14 @@ void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 
 int security_inode_getxattr(struct dentry *dentry, const char *name)
 {
-	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 		return 0;
 	return security_ops->inode_getxattr(dentry, name);
 }
 
 int security_inode_listxattr(struct dentry *dentry)
 {
-	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 		return 0;
 	return security_ops->inode_listxattr(dentry);
 }
@@ -658,7 +658,7 @@ int security_inode_removexattr(struct dentry *dentry, const char *name)
 {
 	int ret;
 
-	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+	if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 		return 0;
 	ret = security_ops->inode_removexattr(dentry, name);
 	if (ret)