[PATCH 3/4] fsnotify: simplify API for filename events

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Do not pass redundant parent inode arg.

Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx>
---
 arch/powerpc/platforms/cell/spufs/inode.c |  2 +-
 fs/btrfs/ioctl.c                          |  2 +-
 fs/debugfs/inode.c                        |  6 +++---
 fs/devpts/inode.c                         |  2 +-
 fs/namei.c                                | 16 ++++++++--------
 fs/ocfs2/refcounttree.c                   |  2 +-
 fs/tracefs/inode.c                        |  4 ++--
 include/linux/fsnotify.h                  | 20 +++++++++++++-------
 net/sunrpc/rpc_pipe.c                     |  6 +++---
 9 files changed, 33 insertions(+), 27 deletions(-)

diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 5364d4a..059ef91 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -587,7 +587,7 @@ long spufs_create(struct path *path, struct dentry *dentry,
 		ret = spufs_create_context(dir, dentry, path->mnt, flags, mode,
 					    filp);
 	if (ret >= 0)
-		fsnotify_mkdir(dir, dentry);
+		fsnotify_mkdir(dentry);
 
 	return ret;
 }
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 33f967d..3fb1af5 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -881,7 +881,7 @@ static noinline int btrfs_mksubvol(const struct path *parent,
 				      async_transid, inherit);
 	}
 	if (!error)
-		fsnotify_mkdir(dir, dentry);
+		fsnotify_mkdir(dentry);
 out_up_read:
 	up_read(&fs_info->subvol_sem);
 out_dput:
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index f17fcf8..c83336f 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -327,7 +327,7 @@ static struct dentry *__debugfs_create_file(const char *name, umode_t mode,
 	dentry->d_fsdata = (void *)real_fops;
 
 	d_instantiate(dentry, inode);
-	fsnotify_create(d_inode(dentry->d_parent), dentry);
+	fsnotify_create(dentry);
 	return end_creating(dentry);
 }
 
@@ -486,7 +486,7 @@ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
 	inc_nlink(inode);
 	d_instantiate(dentry, inode);
 	inc_nlink(d_inode(dentry->d_parent));
-	fsnotify_mkdir(d_inode(dentry->d_parent), dentry);
+	fsnotify_mkdir(dentry);
 	return end_creating(dentry);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_dir);
@@ -525,7 +525,7 @@ struct dentry *debugfs_create_automount(const char *name,
 	inc_nlink(inode);
 	d_instantiate(dentry, inode);
 	inc_nlink(d_inode(dentry->d_parent));
-	fsnotify_mkdir(d_inode(dentry->d_parent), dentry);
+	fsnotify_mkdir(dentry);
 	return end_creating(dentry);
 }
 EXPORT_SYMBOL(debugfs_create_automount);
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 108df2e..b073d25 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -549,7 +549,7 @@ struct dentry *devpts_pty_new(struct pts_fs_info *fsi, int index, void *priv)
 	if (dentry) {
 		dentry->d_fsdata = priv;
 		d_add(dentry, inode);
-		fsnotify_create(d_inode(root), dentry);
+		fsnotify_create(dentry);
 	} else {
 		iput(inode);
 		dentry = ERR_PTR(-ENOMEM);
diff --git a/fs/namei.c b/fs/namei.c
index 1c372de..706b685 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2851,7 +2851,7 @@ int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
 		return error;
 	error = dir->i_op->create(dir, dentry, mode, want_excl);
 	if (!error)
-		fsnotify_create(dir, dentry);
+		fsnotify_create(dentry);
 	return error;
 }
 EXPORT_SYMBOL(vfs_create);
@@ -2995,7 +2995,7 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry,
 		int acc_mode = op->acc_mode;
 		if (*opened & FILE_CREATED) {
 			WARN_ON(!(open_flag & O_CREAT));
-			fsnotify_create(dir, dentry);
+			fsnotify_create(dentry);
 			acc_mode = 0;
 		}
 		error = may_open(&file->f_path, acc_mode, open_flag);
@@ -3010,7 +3010,7 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry,
 				dentry = file->f_path.dentry;
 			}
 			if (*opened & FILE_CREATED)
-				fsnotify_create(dir, dentry);
+				fsnotify_create(dentry);
 			if (unlikely(d_is_negative(dentry))) {
 				error = -ENOENT;
 			} else {
@@ -3156,7 +3156,7 @@ static int lookup_open(struct nameidata *nd, struct path *path,
 						open_flag & O_EXCL);
 		if (error)
 			goto out_dput;
-		fsnotify_create(dir_inode, dentry);
+		fsnotify_create(dentry);
 	}
 	if (unlikely(create_error) && !dentry->d_inode) {
 		error = create_error;
@@ -3645,7 +3645,7 @@ int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 
 	error = dir->i_op->mknod(dir, dentry, mode, dev);
 	if (!error)
-		fsnotify_create(dir, dentry);
+		fsnotify_create(dentry);
 	return error;
 }
 EXPORT_SYMBOL(vfs_mknod);
@@ -3737,7 +3737,7 @@ int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 
 	error = dir->i_op->mkdir(dir, dentry, mode);
 	if (!error)
-		fsnotify_mkdir(dir, dentry);
+		fsnotify_mkdir(dentry);
 	return error;
 }
 EXPORT_SYMBOL(vfs_mkdir);
@@ -4044,7 +4044,7 @@ int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname)
 
 	error = dir->i_op->symlink(dir, dentry, oldname);
 	if (!error)
-		fsnotify_create(dir, dentry);
+		fsnotify_create(dentry);
 	return error;
 }
 EXPORT_SYMBOL(vfs_symlink);
@@ -4160,7 +4160,7 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de
 	}
 	inode_unlock(inode);
 	if (!error)
-		fsnotify_link(dir, inode, new_dentry);
+		fsnotify_link(inode, new_dentry);
 	return error;
 }
 EXPORT_SYMBOL(vfs_link);
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index d171d2c..f48b402 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -4401,7 +4401,7 @@ static int ocfs2_vfs_reflink(struct dentry *old_dentry, struct inode *dir,
 		error = ocfs2_reflink(old_dentry, dir, new_dentry, preserve);
 	inode_unlock(inode);
 	if (!error)
-		fsnotify_create(dir, new_dentry);
+		fsnotify_create(new_dentry);
 	return error;
 }
 /*
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 21d36d2..dbd3980 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -412,7 +412,7 @@ struct dentry *tracefs_create_file(const char *name, umode_t mode,
 	inode->i_fop = fops ? fops : &tracefs_file_operations;
 	inode->i_private = data;
 	d_instantiate(dentry, inode);
-	fsnotify_create(dentry->d_parent->d_inode, dentry);
+	fsnotify_create(dentry);
 	return end_creating(dentry);
 }
 
@@ -437,7 +437,7 @@ static struct dentry *__create_dir(const char *name, struct dentry *parent,
 	inc_nlink(inode);
 	d_instantiate(dentry, inode);
 	inc_nlink(dentry->d_parent->d_inode);
-	fsnotify_mkdir(dentry->d_parent->d_inode, dentry);
+	fsnotify_mkdir(dentry);
 	return end_creating(dentry);
 }
 
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index ef54e8f..93efa8c 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -47,6 +47,12 @@ static inline int fsnotify_d_name(struct dentry *dentry, __u32 mask)
 				 dentry->d_name.name, 0);
 }
 
+static inline void audit_dentry_child(const struct dentry *dentry,
+				      const unsigned char type)
+{
+	audit_inode_child(d_inode(dentry->d_parent), dentry, type);
+}
+
 /* simple call site for access decisions */
 static inline int fsnotify_perm(struct file *file, int mask)
 {
@@ -115,7 +121,7 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
 
 	if (source)
 		fsnotify(source, FS_MOVE_SELF, moved, FSNOTIFY_EVENT_DENTRY, NULL, 0);
-	audit_inode_child(new_dir, moved, AUDIT_TYPE_CHILD_CREATE);
+	audit_dentry_child(moved, AUDIT_TYPE_CHILD_CREATE);
 }
 
 /*
@@ -159,9 +165,9 @@ static inline void fsnotify_inoderemove(struct inode *inode)
 /*
  * fsnotify_create - 'name' was linked in
  */
-static inline void fsnotify_create(struct inode *inode, struct dentry *dentry)
+static inline void fsnotify_create(struct dentry *dentry)
 {
-	audit_inode_child(inode, dentry, AUDIT_TYPE_CHILD_CREATE);
+	audit_dentry_child(dentry, AUDIT_TYPE_CHILD_CREATE);
 
 	fsnotify_d_name(dentry, FS_CREATE);
 }
@@ -171,10 +177,10 @@ static inline void fsnotify_create(struct inode *inode, struct dentry *dentry)
  * Note: We have to pass also the linked inode ptr as some filesystems leave
  *   new_dentry->d_inode NULL and instantiate inode pointer later
  */
-static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct dentry *new_dentry)
+static inline void fsnotify_link(struct inode *inode, struct dentry *new_dentry)
 {
 	fsnotify_link_count(inode);
-	audit_inode_child(dir, new_dentry, AUDIT_TYPE_CHILD_CREATE);
+	audit_dentry_child(new_dentry, AUDIT_TYPE_CHILD_CREATE);
 
 	fsnotify_d_name(new_dentry, FS_CREATE);
 }
@@ -182,11 +188,11 @@ static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct
 /*
  * fsnotify_mkdir - directory 'name' was created
  */
-static inline void fsnotify_mkdir(struct inode *inode, struct dentry *dentry)
+static inline void fsnotify_mkdir(struct dentry *dentry)
 {
 	__u32 mask = (FS_CREATE | FS_ISDIR);
 
-	audit_inode_child(inode, dentry, AUDIT_TYPE_CHILD_CREATE);
+	audit_dentry_child(dentry, AUDIT_TYPE_CHILD_CREATE);
 
 	fsnotify_d_name(dentry, mask);
 }
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 61a504f..9f2de3f 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -524,7 +524,7 @@ static int __rpc_create(struct inode *dir, struct dentry *dentry,
 	err = __rpc_create_common(dir, dentry, S_IFREG | mode, i_fop, private);
 	if (err)
 		return err;
-	fsnotify_create(dir, dentry);
+	fsnotify_create(dentry);
 	return 0;
 }
 
@@ -539,7 +539,7 @@ static int __rpc_mkdir(struct inode *dir, struct dentry *dentry,
 	if (err)
 		return err;
 	inc_nlink(dir);
-	fsnotify_mkdir(dir, dentry);
+	fsnotify_mkdir(dentry);
 	return 0;
 }
 
@@ -594,7 +594,7 @@ static int __rpc_mkpipe_dentry(struct inode *dir, struct dentry *dentry,
 	rpci = RPC_I(d_inode(dentry));
 	rpci->private = private;
 	rpci->pipe = pipe;
-	fsnotify_create(dir, dentry);
+	fsnotify_create(dentry);
 	return 0;
 }
 
-- 
2.7.4

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