include/linux/fsnotify.h - linux/kernel/git/will/linux - Git at Google

 /* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FS_NOTIFY_H
 #define _LINUX_FS_NOTIFY_H

 /*
  * include/linux/fsnotify.h - generic hooks for filesystem notification, to
  * reduce in-source duplication from both dnotify and inotify.
  *
  * We don't compile any of this away in some complicated menagerie of ifdefs.
  * Instead, we rely on the code inside to optimize away as needed.
  *
  * (C) Copyright 2005 Robert Love
  */

 #include <linux/fsnotify_backend.h>
 #include <linux/audit.h>
 #include <linux/slab.h>
 #include <linux/bug.h>

 /* Are there any inode/mount/sb objects that are being watched at all? */
 static inline bool fsnotify_sb_has_watchers(struct super_block *sb)
 {
 	return atomic_long_read(&sb->s_fsnotify_connectors);
 }

 /*
  * Notify this @dir inode about a change in a child directory entry.
  * The directory entry may have turned positive or negative or its inode may
  * have changed (i.e. renamed over).
  *
  * Unlike fsnotify_parent(), the event will be reported regardless of the
  * FS_EVENT_ON_CHILD mask on the parent inode and will not be reported if only
  * the child is interested and not the parent.
  */
 static inline int fsnotify_name(__u32 mask, const void *data, int data_type,
 				struct inode *dir, const struct qstr *name,
 				u32 cookie)
 {
 	if (!fsnotify_sb_has_watchers(dir->i_sb))
 		return 0;

 	return fsnotify(mask, data, data_type, dir, name, NULL, cookie);
 }

 static inline void fsnotify_dirent(struct inode *dir, struct dentry *dentry,
 				   __u32 mask)
 {
 	fsnotify_name(mask, dentry, FSNOTIFY_EVENT_DENTRY, dir, &dentry->d_name, 0);
 }

 static inline void fsnotify_inode(struct inode *inode, __u32 mask)
 {
 	if (!fsnotify_sb_has_watchers(inode->i_sb))
 		return;

 	if (S_ISDIR(inode->i_mode))
 		mask |= FS_ISDIR;

 	fsnotify(mask, inode, FSNOTIFY_EVENT_INODE, NULL, NULL, inode, 0);
 }

 /* Notify this dentry's parent about a child's events. */
 static inline int fsnotify_parent(struct dentry *dentry, __u32 mask,
 				  const void *data, int data_type)
 {
 	struct inode *inode = d_inode(dentry);

 	if (!fsnotify_sb_has_watchers(inode->i_sb))
 		return 0;

 	if (S_ISDIR(inode->i_mode)) {
 		mask |= FS_ISDIR;

 		/* sb/mount marks are not interested in name of directory */
 		if (!(dentry->d_flags & DCACHE_FSNOTIFY_PARENT_WATCHED))
 			goto notify_child;
 	}

 	/* disconnected dentry cannot notify parent */
 	if (IS_ROOT(dentry))
 		goto notify_child;

 	return __fsnotify_parent(dentry, mask, data, data_type);

 notify_child:
 	return fsnotify(mask, data, data_type, NULL, NULL, inode, 0);
 }

 /*
  * Simple wrappers to consolidate calls to fsnotify_parent() when an event
  * is on a file/dentry.
  */
 static inline void fsnotify_dentry(struct dentry *dentry, __u32 mask)
 {
 	fsnotify_parent(dentry, mask, dentry, FSNOTIFY_EVENT_DENTRY);
 }

 static inline int fsnotify_file(struct file *file, __u32 mask)
 {
 	const struct path *path;

 	if (file->f_mode & FMODE_NONOTIFY)
 		return 0;

 	path = &file->f_path;
 	return fsnotify_parent(path->dentry, mask, path, FSNOTIFY_EVENT_PATH);
 }

 #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
 /*
  * fsnotify_file_area_perm - permission hook before access to file range
  */
 static inline int fsnotify_file_area_perm(struct file *file, int perm_mask,
 					  const loff_t *ppos, size_t count)
 {
 	__u32 fsnotify_mask = FS_ACCESS_PERM;

 	/*
 	 * filesystem may be modified in the context of permission events
 	 * (e.g. by HSM filling a file on access), so sb freeze protection
 	 * must not be held.
 	 */
 	lockdep_assert_once(file_write_not_started(file));

 	if (!(perm_mask & MAY_READ))
 		return 0;

 	return fsnotify_file(file, fsnotify_mask);
 }

 /*
  * fsnotify_file_perm - permission hook before file access
  */
 static inline int fsnotify_file_perm(struct file *file, int perm_mask)
 {
 	return fsnotify_file_area_perm(file, perm_mask, NULL, 0);
 }

 /*
  * fsnotify_open_perm - permission hook before file open
  */
 static inline int fsnotify_open_perm(struct file *file)
 {
 	int ret;

 	if (file->f_flags & __FMODE_EXEC) {
 		ret = fsnotify_file(file, FS_OPEN_EXEC_PERM);
 		if (ret)
 			return ret;
 	}

 	return fsnotify_file(file, FS_OPEN_PERM);
 }

 #else
 static inline int fsnotify_file_area_perm(struct file *file, int perm_mask,
 					  const loff_t *ppos, size_t count)
 {
 	return 0;
 }

 static inline int fsnotify_file_perm(struct file *file, int perm_mask)
 {
 	return 0;
 }

 static inline int fsnotify_open_perm(struct file *file)
 {
 	return 0;
 }
 #endif

 /*
  * fsnotify_link_count - inode's link count changed
  */
 static inline void fsnotify_link_count(struct inode *inode)
 {
 	fsnotify_inode(inode, FS_ATTRIB);
 }

 /*
  * fsnotify_move - file old_name at old_dir was moved to new_name at new_dir
  */
 static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
 				 const struct qstr *old_name,
 				 int isdir, struct inode *target,
 				 struct dentry *moved)
 {
 	struct inode *source = moved->d_inode;
 	u32 fs_cookie = fsnotify_get_cookie();
 	__u32 old_dir_mask = FS_MOVED_FROM;
 	__u32 new_dir_mask = FS_MOVED_TO;
 	__u32 rename_mask = FS_RENAME;
 	const struct qstr *new_name = &moved->d_name;

 	if (isdir) {
 		old_dir_mask |= FS_ISDIR;
 		new_dir_mask |= FS_ISDIR;
 		rename_mask |= FS_ISDIR;
 	}

 	/* Event with information about both old and new parent+name */
 	fsnotify_name(rename_mask, moved, FSNOTIFY_EVENT_DENTRY,
 		      old_dir, old_name, 0);

 	fsnotify_name(old_dir_mask, source, FSNOTIFY_EVENT_INODE,
 		      old_dir, old_name, fs_cookie);
 	fsnotify_name(new_dir_mask, source, FSNOTIFY_EVENT_INODE,
 		      new_dir, new_name, fs_cookie);

 	if (target)
 		fsnotify_link_count(target);
 	fsnotify_inode(source, FS_MOVE_SELF);
 	audit_inode_child(new_dir, moved, AUDIT_TYPE_CHILD_CREATE);
 }

 /*
  * fsnotify_inode_delete - and inode is being evicted from cache, clean up is needed
  */
 static inline void fsnotify_inode_delete(struct inode *inode)
 {
 	__fsnotify_inode_delete(inode);
 }

 /*
  * fsnotify_vfsmount_delete - a vfsmount is being destroyed, clean up is needed
  */
 static inline void fsnotify_vfsmount_delete(struct vfsmount *mnt)
 {
 	__fsnotify_vfsmount_delete(mnt);
 }

 /*
  * fsnotify_inoderemove - an inode is going away
  */
 static inline void fsnotify_inoderemove(struct inode *inode)
 {
 	fsnotify_inode(inode, FS_DELETE_SELF);
 	__fsnotify_inode_delete(inode);
 }

 /*
  * fsnotify_create - 'name' was linked in
  *
  * Caller must make sure that dentry->d_name is stable.
  * Note: some filesystems (e.g. kernfs) leave @dentry negative and instantiate
  * ->d_inode later
  */
 static inline void fsnotify_create(struct inode *dir, struct dentry *dentry)
 {
 	audit_inode_child(dir, dentry, AUDIT_TYPE_CHILD_CREATE);

 	fsnotify_dirent(dir, dentry, FS_CREATE);
 }

 /*
  * fsnotify_link - new hardlink in 'inode' directory
  *
  * Caller must make sure that new_dentry->d_name is stable.
  * 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)
 {
 	fsnotify_link_count(inode);
 	audit_inode_child(dir, new_dentry, AUDIT_TYPE_CHILD_CREATE);

 	fsnotify_name(FS_CREATE, inode, FSNOTIFY_EVENT_INODE,
 		      dir, &new_dentry->d_name, 0);
 }

 /*
  * fsnotify_delete - @dentry was unlinked and unhashed
  *
  * Caller must make sure that dentry->d_name is stable.
  *
  * Note: unlike fsnotify_unlink(), we have to pass also the unlinked inode
  * as this may be called after d_delete() and old_dentry may be negative.
  */
 static inline void fsnotify_delete(struct inode *dir, struct inode *inode,
 				   struct dentry *dentry)
 {
 	__u32 mask = FS_DELETE;

 	if (S_ISDIR(inode->i_mode))
 		mask |= FS_ISDIR;

 	fsnotify_name(mask, inode, FSNOTIFY_EVENT_INODE, dir, &dentry->d_name,
 		      0);
 }

 /**
  * d_delete_notify - delete a dentry and call fsnotify_delete()
  * @dentry: The dentry to delete
  *
  * This helper is used to guaranty that the unlinked inode cannot be found
  * by lookup of this name after fsnotify_delete() event has been delivered.
  */
 static inline void d_delete_notify(struct inode *dir, struct dentry *dentry)
 {
 	struct inode *inode = d_inode(dentry);

 	ihold(inode);
 	d_delete(dentry);
 	fsnotify_delete(dir, inode, dentry);
 	iput(inode);
 }

 /*
  * fsnotify_unlink - 'name' was unlinked
  *
  * Caller must make sure that dentry->d_name is stable.
  */
 static inline void fsnotify_unlink(struct inode *dir, struct dentry *dentry)
 {
 	if (WARN_ON_ONCE(d_is_negative(dentry)))
 		return;

 	fsnotify_delete(dir, d_inode(dentry), dentry);
 }

 /*
  * fsnotify_mkdir - directory 'name' was created
  *
  * Caller must make sure that dentry->d_name is stable.
  * Note: some filesystems (e.g. kernfs) leave @dentry negative and instantiate
  * ->d_inode later
  */
 static inline void fsnotify_mkdir(struct inode *dir, struct dentry *dentry)
 {
 	audit_inode_child(dir, dentry, AUDIT_TYPE_CHILD_CREATE);

 	fsnotify_dirent(dir, dentry, FS_CREATE | FS_ISDIR);
 }

 /*
  * fsnotify_rmdir - directory 'name' was removed
  *
  * Caller must make sure that dentry->d_name is stable.
  */
 static inline void fsnotify_rmdir(struct inode *dir, struct dentry *dentry)
 {
 	if (WARN_ON_ONCE(d_is_negative(dentry)))
 		return;

 	fsnotify_delete(dir, d_inode(dentry), dentry);
 }

 /*
  * fsnotify_access - file was read
  */
 static inline void fsnotify_access(struct file *file)
 {
 	fsnotify_file(file, FS_ACCESS);
 }

 /*
  * fsnotify_modify - file was modified
  */
 static inline void fsnotify_modify(struct file *file)
 {
 	fsnotify_file(file, FS_MODIFY);
 }

 /*
  * fsnotify_open - file was opened
  */
 static inline void fsnotify_open(struct file *file)
 {
 	__u32 mask = FS_OPEN;

 	if (file->f_flags & __FMODE_EXEC)
 		mask |= FS_OPEN_EXEC;

 	fsnotify_file(file, mask);
 }

 /*
  * fsnotify_close - file was closed
  */
 static inline void fsnotify_close(struct file *file)
 {
 	__u32 mask = (file->f_mode & FMODE_WRITE) ? FS_CLOSE_WRITE :
 						    FS_CLOSE_NOWRITE;

 	fsnotify_file(file, mask);
 }

 /*
  * fsnotify_xattr - extended attributes were changed
  */
 static inline void fsnotify_xattr(struct dentry *dentry)
 {
 	fsnotify_dentry(dentry, FS_ATTRIB);
 }

 /*
  * fsnotify_change - notify_change event.  file was modified and/or metadata
  * was changed.
  */
 static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
 {
 	__u32 mask = 0;

 	if (ia_valid & ATTR_UID)
 		mask |= FS_ATTRIB;
 	if (ia_valid & ATTR_GID)
 		mask |= FS_ATTRIB;
 	if (ia_valid & ATTR_SIZE)
 		mask |= FS_MODIFY;

 	/* both times implies a utime(s) call */
 	if ((ia_valid & (ATTR_ATIME | ATTR_MTIME)) == (ATTR_ATIME | ATTR_MTIME))
 		mask |= FS_ATTRIB;
 	else if (ia_valid & ATTR_ATIME)
 		mask |= FS_ACCESS;
 	else if (ia_valid & ATTR_MTIME)
 		mask |= FS_MODIFY;

 	if (ia_valid & ATTR_MODE)
 		mask |= FS_ATTRIB;

 	if (mask)
 		fsnotify_dentry(dentry, mask);
 }

 static inline int fsnotify_sb_error(struct super_block *sb, struct inode *inode,
 				    int error)
 {
 	struct fs_error_report report = {
 		.error = error,
 		.inode = inode,
 		.sb = sb,
 	};

 	return fsnotify(FS_ERROR, &report, FSNOTIFY_EVENT_ERROR,
 			NULL, NULL, NULL, 0);
 }

 #endif	/* _LINUX_FS_NOTIFY_H */
	/* SPDX-License-Identifier: GPL-2.0 */
	#ifndef _LINUX_FS_NOTIFY_H
	#define _LINUX_FS_NOTIFY_H

	/*
	* include/linux/fsnotify.h - generic hooks for filesystem notification, to
	* reduce in-source duplication from both dnotify and inotify.
	*
	* We don't compile any of this away in some complicated menagerie of ifdefs.
	* Instead, we rely on the code inside to optimize away as needed.
	*
	* (C) Copyright 2005 Robert Love
	*/

	#include <linux/fsnotify_backend.h>
	#include <linux/audit.h>
	#include <linux/slab.h>
	#include <linux/bug.h>

	/* Are there any inode/mount/sb objects that are being watched at all? */
	static inline bool fsnotify_sb_has_watchers(struct super_block *sb)
	{
	return atomic_long_read(&sb->s_fsnotify_connectors);
	}

	/*
	* Notify this @dir inode about a change in a child directory entry.
	* The directory entry may have turned positive or negative or its inode may
	* have changed (i.e. renamed over).
	*
	* Unlike fsnotify_parent(), the event will be reported regardless of the
	* FS_EVENT_ON_CHILD mask on the parent inode and will not be reported if only
	* the child is interested and not the parent.
	*/
	static inline int fsnotify_name(__u32 mask, const void *data, int data_type,
	struct inode dir, const struct qstr name,
	u32 cookie)
	{
	if (!fsnotify_sb_has_watchers(dir->i_sb))
	return 0;

	return fsnotify(mask, data, data_type, dir, name, NULL, cookie);
	}

	static inline void fsnotify_dirent(struct inode dir, struct dentry dentry,
	__u32 mask)
	{
	fsnotify_name(mask, dentry, FSNOTIFY_EVENT_DENTRY, dir, &dentry->d_name, 0);
	}

	static inline void fsnotify_inode(struct inode *inode, __u32 mask)
	{
	if (!fsnotify_sb_has_watchers(inode->i_sb))
	return;

	if (S_ISDIR(inode->i_mode))
	mask \|= FS_ISDIR;

	fsnotify(mask, inode, FSNOTIFY_EVENT_INODE, NULL, NULL, inode, 0);
	}

	/* Notify this dentry's parent about a child's events. */
	static inline int fsnotify_parent(struct dentry *dentry, __u32 mask,
	const void *data, int data_type)
	{
	struct inode *inode = d_inode(dentry);

	if (!fsnotify_sb_has_watchers(inode->i_sb))
	return 0;

	if (S_ISDIR(inode->i_mode)) {
	mask \|= FS_ISDIR;

	/* sb/mount marks are not interested in name of directory */
	if (!(dentry->d_flags & DCACHE_FSNOTIFY_PARENT_WATCHED))
	goto notify_child;
	}

	/* disconnected dentry cannot notify parent */
	if (IS_ROOT(dentry))
	goto notify_child;

	return __fsnotify_parent(dentry, mask, data, data_type);

	notify_child:
	return fsnotify(mask, data, data_type, NULL, NULL, inode, 0);
	}

	/*
	* Simple wrappers to consolidate calls to fsnotify_parent() when an event
	* is on a file/dentry.
	*/
	static inline void fsnotify_dentry(struct dentry *dentry, __u32 mask)
	{
	fsnotify_parent(dentry, mask, dentry, FSNOTIFY_EVENT_DENTRY);
	}

	static inline int fsnotify_file(struct file *file, __u32 mask)
	{
	const struct path *path;

	if (file->f_mode & FMODE_NONOTIFY)
	return 0;

	path = &file->f_path;
	return fsnotify_parent(path->dentry, mask, path, FSNOTIFY_EVENT_PATH);
	}

	#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
	/*
	* fsnotify_file_area_perm - permission hook before access to file range
	*/
	static inline int fsnotify_file_area_perm(struct file *file, int perm_mask,
	const loff_t *ppos, size_t count)
	{
	__u32 fsnotify_mask = FS_ACCESS_PERM;

	/*
	* filesystem may be modified in the context of permission events
	* (e.g. by HSM filling a file on access), so sb freeze protection
	* must not be held.
	*/
	lockdep_assert_once(file_write_not_started(file));

	if (!(perm_mask & MAY_READ))
	return 0;

	return fsnotify_file(file, fsnotify_mask);
	}

	/*
	* fsnotify_file_perm - permission hook before file access
	*/
	static inline int fsnotify_file_perm(struct file *file, int perm_mask)
	{
	return fsnotify_file_area_perm(file, perm_mask, NULL, 0);
	}

	/*
	* fsnotify_open_perm - permission hook before file open
	*/
	static inline int fsnotify_open_perm(struct file *file)
	{
	int ret;

	if (file->f_flags & __FMODE_EXEC) {
	ret = fsnotify_file(file, FS_OPEN_EXEC_PERM);
	if (ret)
	return ret;
	}

	return fsnotify_file(file, FS_OPEN_PERM);
	}

	#else
	static inline int fsnotify_file_area_perm(struct file *file, int perm_mask,
	const loff_t *ppos, size_t count)
	{
	return 0;
	}

	static inline int fsnotify_file_perm(struct file *file, int perm_mask)
	{
	return 0;
	}

	static inline int fsnotify_open_perm(struct file *file)
	{
	return 0;
	}
	#endif

	/*
	* fsnotify_link_count - inode's link count changed
	*/
	static inline void fsnotify_link_count(struct inode *inode)
	{
	fsnotify_inode(inode, FS_ATTRIB);
	}

	/*
	* fsnotify_move - file old_name at old_dir was moved to new_name at new_dir
	*/
	static inline void fsnotify_move(struct inode old_dir, struct inode new_dir,
	const struct qstr *old_name,
	int isdir, struct inode *target,
	struct dentry *moved)
	{
	struct inode *source = moved->d_inode;
	u32 fs_cookie = fsnotify_get_cookie();
	__u32 old_dir_mask = FS_MOVED_FROM;
	__u32 new_dir_mask = FS_MOVED_TO;
	__u32 rename_mask = FS_RENAME;
	const struct qstr *new_name = &moved->d_name;

	if (isdir) {
	old_dir_mask \|= FS_ISDIR;
	new_dir_mask \|= FS_ISDIR;
	rename_mask \|= FS_ISDIR;
	}

	/* Event with information about both old and new parent+name */
	fsnotify_name(rename_mask, moved, FSNOTIFY_EVENT_DENTRY,
	old_dir, old_name, 0);

	fsnotify_name(old_dir_mask, source, FSNOTIFY_EVENT_INODE,
	old_dir, old_name, fs_cookie);
	fsnotify_name(new_dir_mask, source, FSNOTIFY_EVENT_INODE,
	new_dir, new_name, fs_cookie);

	if (target)
	fsnotify_link_count(target);
	fsnotify_inode(source, FS_MOVE_SELF);
	audit_inode_child(new_dir, moved, AUDIT_TYPE_CHILD_CREATE);
	}

	/*
	* fsnotify_inode_delete - and inode is being evicted from cache, clean up is needed
	*/
	static inline void fsnotify_inode_delete(struct inode *inode)
	{
	__fsnotify_inode_delete(inode);
	}

	/*
	* fsnotify_vfsmount_delete - a vfsmount is being destroyed, clean up is needed
	*/
	static inline void fsnotify_vfsmount_delete(struct vfsmount *mnt)
	{
	__fsnotify_vfsmount_delete(mnt);
	}

	/*
	* fsnotify_inoderemove - an inode is going away
	*/
	static inline void fsnotify_inoderemove(struct inode *inode)
	{
	fsnotify_inode(inode, FS_DELETE_SELF);
	__fsnotify_inode_delete(inode);
	}

	/*
	* fsnotify_create - 'name' was linked in
	*
	* Caller must make sure that dentry->d_name is stable.
	* Note: some filesystems (e.g. kernfs) leave @dentry negative and instantiate
	* ->d_inode later
	*/
	static inline void fsnotify_create(struct inode dir, struct dentry dentry)
	{
	audit_inode_child(dir, dentry, AUDIT_TYPE_CHILD_CREATE);

	fsnotify_dirent(dir, dentry, FS_CREATE);
	}

	/*
	* fsnotify_link - new hardlink in 'inode' directory
	*
	* Caller must make sure that new_dentry->d_name is stable.
	* 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)
	{
	fsnotify_link_count(inode);
	audit_inode_child(dir, new_dentry, AUDIT_TYPE_CHILD_CREATE);

	fsnotify_name(FS_CREATE, inode, FSNOTIFY_EVENT_INODE,
	dir, &new_dentry->d_name, 0);
	}

	/*
	* fsnotify_delete - @dentry was unlinked and unhashed
	*
	* Caller must make sure that dentry->d_name is stable.
	*
	* Note: unlike fsnotify_unlink(), we have to pass also the unlinked inode
	* as this may be called after d_delete() and old_dentry may be negative.
	*/
	static inline void fsnotify_delete(struct inode dir, struct inode inode,
	struct dentry *dentry)
	{
	__u32 mask = FS_DELETE;

	if (S_ISDIR(inode->i_mode))
	mask \|= FS_ISDIR;

	fsnotify_name(mask, inode, FSNOTIFY_EVENT_INODE, dir, &dentry->d_name,
	0);
	}

	/**
	* d_delete_notify - delete a dentry and call fsnotify_delete()
	* @dentry: The dentry to delete
	*
	* This helper is used to guaranty that the unlinked inode cannot be found
	* by lookup of this name after fsnotify_delete() event has been delivered.
	*/
	static inline void d_delete_notify(struct inode dir, struct dentry dentry)
	{
	struct inode *inode = d_inode(dentry);

	ihold(inode);
	d_delete(dentry);
	fsnotify_delete(dir, inode, dentry);
	iput(inode);
	}

	/*
	* fsnotify_unlink - 'name' was unlinked
	*
	* Caller must make sure that dentry->d_name is stable.
	*/
	static inline void fsnotify_unlink(struct inode dir, struct dentry dentry)
	{
	if (WARN_ON_ONCE(d_is_negative(dentry)))
	return;

	fsnotify_delete(dir, d_inode(dentry), dentry);
	}

	/*
	* fsnotify_mkdir - directory 'name' was created
	*
	* Caller must make sure that dentry->d_name is stable.
	* Note: some filesystems (e.g. kernfs) leave @dentry negative and instantiate
	* ->d_inode later
	*/
	static inline void fsnotify_mkdir(struct inode dir, struct dentry dentry)
	{
	audit_inode_child(dir, dentry, AUDIT_TYPE_CHILD_CREATE);

	fsnotify_dirent(dir, dentry, FS_CREATE \| FS_ISDIR);
	}

	/*
	* fsnotify_rmdir - directory 'name' was removed
	*
	* Caller must make sure that dentry->d_name is stable.
	*/
	static inline void fsnotify_rmdir(struct inode dir, struct dentry dentry)
	{
	if (WARN_ON_ONCE(d_is_negative(dentry)))
	return;

	fsnotify_delete(dir, d_inode(dentry), dentry);
	}

	/*
	* fsnotify_access - file was read
	*/
	static inline void fsnotify_access(struct file *file)
	{
	fsnotify_file(file, FS_ACCESS);
	}

	/*
	* fsnotify_modify - file was modified
	*/
	static inline void fsnotify_modify(struct file *file)
	{
	fsnotify_file(file, FS_MODIFY);
	}

	/*
	* fsnotify_open - file was opened
	*/
	static inline void fsnotify_open(struct file *file)
	{
	__u32 mask = FS_OPEN;

	if (file->f_flags & __FMODE_EXEC)
	mask \|= FS_OPEN_EXEC;

	fsnotify_file(file, mask);
	}

	/*
	* fsnotify_close - file was closed
	*/
	static inline void fsnotify_close(struct file *file)
	{
	__u32 mask = (file->f_mode & FMODE_WRITE) ? FS_CLOSE_WRITE :
	FS_CLOSE_NOWRITE;

	fsnotify_file(file, mask);
	}

	/*
	* fsnotify_xattr - extended attributes were changed
	*/
	static inline void fsnotify_xattr(struct dentry *dentry)
	{
	fsnotify_dentry(dentry, FS_ATTRIB);
	}

	/*
	* fsnotify_change - notify_change event. file was modified and/or metadata
	* was changed.
	*/
	static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
	{
	__u32 mask = 0;

	if (ia_valid & ATTR_UID)
	mask \|= FS_ATTRIB;
	if (ia_valid & ATTR_GID)
	mask \|= FS_ATTRIB;
	if (ia_valid & ATTR_SIZE)
	mask \|= FS_MODIFY;

	/* both times implies a utime(s) call */
	if ((ia_valid & (ATTR_ATIME \| ATTR_MTIME)) == (ATTR_ATIME \| ATTR_MTIME))
	mask \|= FS_ATTRIB;
	else if (ia_valid & ATTR_ATIME)
	mask \|= FS_ACCESS;
	else if (ia_valid & ATTR_MTIME)
	mask \|= FS_MODIFY;

	if (ia_valid & ATTR_MODE)
	mask \|= FS_ATTRIB;

	if (mask)
	fsnotify_dentry(dentry, mask);
	}

	static inline int fsnotify_sb_error(struct super_block sb, struct inode inode,
	int error)
	{
	struct fs_error_report report = {
	.error = error,
	.inode = inode,
	.sb = sb,
	};

	return fsnotify(FS_ERROR, &report, FSNOTIFY_EVENT_ERROR,
	NULL, NULL, NULL, 0);
	}

	#endif /* _LINUX_FS_NOTIFY_H */