[mirror_ubuntu-focal-kernel.git] / include / linux / fsnotify.h

#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/dnotify.h>
#include <linux/inotify.h>
#include <linux/fsnotify_backend.h>
#include <linux/audit.h>

/*
 * fsnotify_d_instantiate - instantiate a dentry for inode
 * Called with dcache_lock held.
 */
static inline void fsnotify_d_instantiate(struct dentry *entry,
						struct inode *inode)
{
	inotify_d_instantiate(entry, inode);
}

/*
 * fsnotify_d_move - entry has been moved
 * Called with dcache_lock and entry->d_lock held.
 */
static inline void fsnotify_d_move(struct dentry *entry)
{
	inotify_d_move(entry);
}

/*
 * fsnotify_link_count - inode's link count changed
 */
static inline void fsnotify_link_count(struct inode *inode)
{
	inotify_inode_queue_event(inode, IN_ATTRIB, 0, NULL, NULL);

	fsnotify(inode, FS_ATTRIB, inode, FSNOTIFY_EVENT_INODE);
}

/*
 * 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 char *old_name, const char *new_name,
				 int isdir, struct inode *target, struct dentry *moved)
{
	struct inode *source = moved->d_inode;
	u32 cookie = inotify_get_cookie();
	__u32 old_dir_mask = 0;
	__u32 new_dir_mask = 0;

	if (old_dir == new_dir) {
		inode_dir_notify(old_dir, DN_RENAME);
		old_dir_mask = FS_DN_RENAME;
	} else {
		inode_dir_notify(old_dir, DN_DELETE);
		old_dir_mask = FS_DELETE;
		inode_dir_notify(new_dir, DN_CREATE);
		new_dir_mask = FS_CREATE;
	}

	if (isdir) {
		isdir = IN_ISDIR;
		old_dir_mask |= FS_IN_ISDIR;
		new_dir_mask |= FS_IN_ISDIR;
	}

	old_dir_mask |= FS_MOVED_FROM;
	new_dir_mask |= FS_MOVED_TO;

	inotify_inode_queue_event(old_dir, IN_MOVED_FROM|isdir,cookie,old_name,
				  source);
	inotify_inode_queue_event(new_dir, IN_MOVED_TO|isdir, cookie, new_name,
				  source);

	fsnotify(old_dir, old_dir_mask, old_dir, FSNOTIFY_EVENT_INODE);
	fsnotify(new_dir, new_dir_mask, new_dir, FSNOTIFY_EVENT_INODE);

	if (target) {
		inotify_inode_queue_event(target, IN_DELETE_SELF, 0, NULL, NULL);
		inotify_inode_is_dead(target);

		/* this is really a link_count change not a removal */
		fsnotify_link_count(target);
	}

	if (source) {
		inotify_inode_queue_event(source, IN_MOVE_SELF, 0, NULL, NULL);
		fsnotify(source, FS_MOVE_SELF, moved->d_inode, FSNOTIFY_EVENT_INODE);
	}
	audit_inode_child(new_name, moved, new_dir);
}

/*
 * 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_nameremove - a filename was removed from a directory
 */
static inline void fsnotify_nameremove(struct dentry *dentry, int isdir)
{
	__u32 mask = FS_DELETE;

	if (isdir)
		mask |= FS_IN_ISDIR;
	dnotify_parent(dentry, DN_DELETE);
	inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
}

/*
 * fsnotify_inoderemove - an inode is going away
 */
static inline void fsnotify_inoderemove(struct inode *inode)
{
	inotify_inode_queue_event(inode, IN_DELETE_SELF, 0, NULL, NULL);
	inotify_inode_is_dead(inode);

	fsnotify(inode, FS_DELETE_SELF, inode, FSNOTIFY_EVENT_INODE);
	__fsnotify_inode_delete(inode);
}

/*
 * fsnotify_create - 'name' was linked in
 */
static inline void fsnotify_create(struct inode *inode, struct dentry *dentry)
{
	inode_dir_notify(inode, DN_CREATE);
	inotify_inode_queue_event(inode, IN_CREATE, 0, dentry->d_name.name,
				  dentry->d_inode);
	audit_inode_child(dentry->d_name.name, dentry, inode);

	fsnotify(inode, FS_CREATE, dentry->d_inode, FSNOTIFY_EVENT_INODE);
}

/*
 * fsnotify_link - new hardlink in 'inode' directory
 * 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)
{
	inode_dir_notify(dir, DN_CREATE);
	inotify_inode_queue_event(dir, IN_CREATE, 0, new_dentry->d_name.name,
				  inode);
	fsnotify_link_count(inode);
	audit_inode_child(new_dentry->d_name.name, new_dentry, dir);

	fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE);
}

/*
 * fsnotify_mkdir - directory 'name' was created
 */
static inline void fsnotify_mkdir(struct inode *inode, struct dentry *dentry)
{
	__u32 mask = (FS_CREATE | FS_IN_ISDIR);
	struct inode *d_inode = dentry->d_inode;

	inode_dir_notify(inode, DN_CREATE);
	inotify_inode_queue_event(inode, mask, 0, dentry->d_name.name, d_inode);
	audit_inode_child(dentry->d_name.name, dentry, inode);

	fsnotify(inode, mask, d_inode, FSNOTIFY_EVENT_INODE);
}

/*
 * fsnotify_access - file was read
 */
static inline void fsnotify_access(struct dentry *dentry)
{
	struct inode *inode = dentry->d_inode;
	__u32 mask = FS_ACCESS;

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

	dnotify_parent(dentry, DN_ACCESS);
	inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);

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

/*
 * fsnotify_modify - file was modified
 */
static inline void fsnotify_modify(struct dentry *dentry)
{
	struct inode *inode = dentry->d_inode;
	__u32 mask = FS_MODIFY;

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

	dnotify_parent(dentry, DN_MODIFY);
	inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);

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

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

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

	inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);

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

/*
 * fsnotify_close - file was closed
 */
static inline void fsnotify_close(struct file *file)
{
	struct dentry *dentry = file->f_path.dentry;
	struct inode *inode = dentry->d_inode;
	const char *name = dentry->d_name.name;
	fmode_t mode = file->f_mode;
	__u32 mask = (mode & FMODE_WRITE) ? FS_CLOSE_WRITE : FS_CLOSE_NOWRITE;

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

	inotify_dentry_parent_queue_event(dentry, mask, 0, name);
	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);

	fsnotify(inode, mask, file, FSNOTIFY_EVENT_FILE);
}

/*
 * fsnotify_xattr - extended attributes were changed
 */
static inline void fsnotify_xattr(struct dentry *dentry)
{
	struct inode *inode = dentry->d_inode;
	__u32 mask = FS_ATTRIB;

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

	inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);

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

/*
 * 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)
{
	struct inode *inode = dentry->d_inode;
	int dn_mask = 0;
	__u32 in_mask = 0;

	if (ia_valid & ATTR_UID) {
		in_mask |= FS_ATTRIB;
		dn_mask |= DN_ATTRIB;
	}
	if (ia_valid & ATTR_GID) {
		in_mask |= FS_ATTRIB;
		dn_mask |= DN_ATTRIB;
	}
	if (ia_valid & ATTR_SIZE) {
		in_mask |= FS_MODIFY;
		dn_mask |= DN_MODIFY;
	}
	/* both times implies a utime(s) call */
	if ((ia_valid & (ATTR_ATIME | ATTR_MTIME)) == (ATTR_ATIME | ATTR_MTIME))
	{
		in_mask |= FS_ATTRIB;
		dn_mask |= DN_ATTRIB;
	} else if (ia_valid & ATTR_ATIME) {
		in_mask |= FS_ACCESS;
		dn_mask |= DN_ACCESS;
	} else if (ia_valid & ATTR_MTIME) {
		in_mask |= FS_MODIFY;
		dn_mask |= DN_MODIFY;
	}
	if (ia_valid & ATTR_MODE) {
		in_mask |= FS_ATTRIB;
		dn_mask |= DN_ATTRIB;
	}

	if (dn_mask)
		dnotify_parent(dentry, dn_mask);
	if (in_mask) {
		if (S_ISDIR(inode->i_mode))
			in_mask |= FS_IN_ISDIR;
		inotify_inode_queue_event(inode, in_mask, 0, NULL, NULL);
		inotify_dentry_parent_queue_event(dentry, in_mask, 0,
						  dentry->d_name.name);
		fsnotify(inode, in_mask, inode, FSNOTIFY_EVENT_INODE);
	}
}

#if defined(CONFIG_INOTIFY) || defined(CONFIG_FSNOTIFY)	/* notify helpers */

/*
 * fsnotify_oldname_init - save off the old filename before we change it
 */
static inline const char *fsnotify_oldname_init(const char *name)
{
	return kstrdup(name, GFP_KERNEL);
}

/*
 * fsnotify_oldname_free - free the name we got from fsnotify_oldname_init
 */
static inline void fsnotify_oldname_free(const char *old_name)
{
	kfree(old_name);
}

#else	/* CONFIG_INOTIFY || CONFIG_FSNOTIFY */

static inline const char *fsnotify_oldname_init(const char *name)
{
	return NULL;
}

static inline void fsnotify_oldname_free(const char *old_name)
{
}

#endif	/* ! CONFIG_INOTIFY */

#endif	/* _LINUX_FS_NOTIFY_H */
Commit	Line	Data
0eeca283 RL	1	#ifndef _LINUX_FS_NOTIFY_H
	2	#define _LINUX_FS_NOTIFY_H
	3
	4	/*
	5	* include/linux/fsnotify.h - generic hooks for filesystem notification, to
	6	* reduce in-source duplication from both dnotify and inotify.
	7	*
	8	* We don't compile any of this away in some complicated menagerie of ifdefs.
	9	* Instead, we rely on the code inside to optimize away as needed.
	10	*
	11	* (C) Copyright 2005 Robert Love
	12	*/
	13
0eeca283 RL	14	#include <linux/dnotify.h>
0eeca283 RL	15	#include <linux/inotify.h>
90586523	16	#include <linux/fsnotify_backend.h>
73241ccc	17	#include <linux/audit.h>
0eeca283	18
c32ccd87 NP	19	/*
	20	* fsnotify_d_instantiate - instantiate a dentry for inode
	21	* Called with dcache_lock held.
	22	*/
	23	static inline void fsnotify_d_instantiate(struct dentry *entry,
	24	struct inode *inode)
	25	{
	26	inotify_d_instantiate(entry, inode);
	27	}
	28
	29	/*
	30	* fsnotify_d_move - entry has been moved
	31	* Called with dcache_lock and entry->d_lock held.
	32	*/
	33	static inline void fsnotify_d_move(struct dentry *entry)
	34	{
	35	inotify_d_move(entry);
	36	}
	37
90586523 EP	38	/*
	39	* fsnotify_link_count - inode's link count changed
	40	*/
	41	static inline void fsnotify_link_count(struct inode *inode)
	42	{
	43	inotify_inode_queue_event(inode, IN_ATTRIB, 0, NULL, NULL);
	44
	45	fsnotify(inode, FS_ATTRIB, inode, FSNOTIFY_EVENT_INODE);
	46	}
	47
0eeca283 RL	48	/*
	49	* fsnotify_move - file old_name at old_dir was moved to new_name at new_dir
	50	*/
	51	static inline void fsnotify_move(struct inode old_dir, struct inode new_dir,
	52	const char old_name, const char new_name,
5a190ae6	53	int isdir, struct inode target, struct dentry moved)
0eeca283	54	{
5a190ae6	55	struct inode *source = moved->d_inode;
0eeca283	56	u32 cookie = inotify_get_cookie();
90586523 EP	57	__u32 old_dir_mask = 0;
90586523 EP	58	__u32 new_dir_mask = 0;
0eeca283	59
90586523	60	if (old_dir == new_dir) {
0eeca283	61	inode_dir_notify(old_dir, DN_RENAME);
90586523 EP	62	old_dir_mask = FS_DN_RENAME;
90586523 EP	63	} else {
0eeca283	64	inode_dir_notify(old_dir, DN_DELETE);
90586523	65	old_dir_mask = FS_DELETE;
0eeca283	66	inode_dir_notify(new_dir, DN_CREATE);
90586523	67	new_dir_mask = FS_CREATE;
0eeca283 RL	68	}
0eeca283 RL	69
90586523	70	if (isdir) {
0eeca283	71	isdir = IN_ISDIR;
90586523 EP	72	old_dir_mask \|= FS_IN_ISDIR;
	73	new_dir_mask \|= FS_IN_ISDIR;
	74	}
	75
	76	old_dir_mask \|= FS_MOVED_FROM;
	77	new_dir_mask \|= FS_MOVED_TO;
	78
7c297722 AG	79	inotify_inode_queue_event(old_dir, IN_MOVED_FROM\|isdir,cookie,old_name,
	80	source);
	81	inotify_inode_queue_event(new_dir, IN_MOVED_TO\|isdir, cookie, new_name,
	82	source);
75449536	83
90586523 EP	84	fsnotify(old_dir, old_dir_mask, old_dir, FSNOTIFY_EVENT_INODE);
	85	fsnotify(new_dir, new_dir_mask, new_dir, FSNOTIFY_EVENT_INODE);
	86
75449536	87	if (target) {
7c297722	88	inotify_inode_queue_event(target, IN_DELETE_SELF, 0, NULL, NULL);
75449536	89	inotify_inode_is_dead(target);
90586523 EP	90
	91	/* this is really a link_count change not a removal */
	92	fsnotify_link_count(target);
75449536	93	}
89204c40 JM	94
89204c40 JM	95	if (source) {
7c297722	96	inotify_inode_queue_event(source, IN_MOVE_SELF, 0, NULL, NULL);
90586523	97	fsnotify(source, FS_MOVE_SELF, moved->d_inode, FSNOTIFY_EVENT_INODE);
89204c40	98	}
5a190ae6	99	audit_inode_child(new_name, moved, new_dir);
0eeca283 RL	100	}
0eeca283 RL	101
3be25f49 EP	102	/*
	103	* fsnotify_inode_delete - and inode is being evicted from cache, clean up is needed
	104	*/
	105	static inline void fsnotify_inode_delete(struct inode *inode)
	106	{
	107	__fsnotify_inode_delete(inode);
	108	}
	109
7a91bf7f JM	110	/*
	111	* fsnotify_nameremove - a filename was removed from a directory
	112	*/
	113	static inline void fsnotify_nameremove(struct dentry *dentry, int isdir)
	114	{
90586523 EP	115	__u32 mask = FS_DELETE;
90586523 EP	116
7a91bf7f	117	if (isdir)
90586523	118	mask \|= FS_IN_ISDIR;
7a91bf7f	119	dnotify_parent(dentry, DN_DELETE);
90586523	120	inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
7a91bf7f JM	121	}
	122
	123	/*
	124	* fsnotify_inoderemove - an inode is going away
	125	*/
	126	static inline void fsnotify_inoderemove(struct inode *inode)
	127	{
7c297722	128	inotify_inode_queue_event(inode, IN_DELETE_SELF, 0, NULL, NULL);
7a91bf7f	129	inotify_inode_is_dead(inode);
7a91bf7f	130
90586523	131	fsnotify(inode, FS_DELETE_SELF, inode, FSNOTIFY_EVENT_INODE);
3be25f49	132	__fsnotify_inode_delete(inode);
ece95912 JK	133	}
ece95912 JK	134
0eeca283 RL	135	/*
	136	* fsnotify_create - 'name' was linked in
	137	*/
f38aa942	138	static inline void fsnotify_create(struct inode inode, struct dentry dentry)
0eeca283 RL	139	{
0eeca283 RL	140	inode_dir_notify(inode, DN_CREATE);
7c297722 AG	141	inotify_inode_queue_event(inode, IN_CREATE, 0, dentry->d_name.name,
7c297722 AG	142	dentry->d_inode);
5a190ae6	143	audit_inode_child(dentry->d_name.name, dentry, inode);
90586523 EP	144
90586523 EP	145	fsnotify(inode, FS_CREATE, dentry->d_inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	146	}
0eeca283 RL	147
ece95912 JK	148	/*
	149	* fsnotify_link - new hardlink in 'inode' directory
	150	* Note: We have to pass also the linked inode ptr as some filesystems leave
	151	* new_dentry->d_inode NULL and instantiate inode pointer later
	152	*/
	153	static inline void fsnotify_link(struct inode dir, struct inode inode, struct dentry *new_dentry)
	154	{
	155	inode_dir_notify(dir, DN_CREATE);
	156	inotify_inode_queue_event(dir, IN_CREATE, 0, new_dentry->d_name.name,
	157	inode);
	158	fsnotify_link_count(inode);
	159	audit_inode_child(new_dentry->d_name.name, new_dentry, dir);
90586523 EP	160
90586523 EP	161	fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE);
ece95912 JK	162	}
ece95912 JK	163
0eeca283 RL	164	/*
	165	* fsnotify_mkdir - directory 'name' was created
	166	*/
f38aa942	167	static inline void fsnotify_mkdir(struct inode inode, struct dentry dentry)
0eeca283	168	{
90586523 EP	169	__u32 mask = (FS_CREATE \| FS_IN_ISDIR);
	170	struct inode *d_inode = dentry->d_inode;
	171
0eeca283	172	inode_dir_notify(inode, DN_CREATE);
90586523	173	inotify_inode_queue_event(inode, mask, 0, dentry->d_name.name, d_inode);
5a190ae6	174	audit_inode_child(dentry->d_name.name, dentry, inode);
90586523 EP	175
90586523 EP	176	fsnotify(inode, mask, d_inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	177	}
	178
	179	/*
	180	* fsnotify_access - file was read
	181	*/
	182	static inline void fsnotify_access(struct dentry *dentry)
	183	{
	184	struct inode *inode = dentry->d_inode;
90586523	185	__u32 mask = FS_ACCESS;
0eeca283 RL	186
0eeca283 RL	187	if (S_ISDIR(inode->i_mode))
90586523	188	mask \|= FS_IN_ISDIR;
0eeca283 RL	189
	190	dnotify_parent(dentry, DN_ACCESS);
	191	inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
7c297722	192	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
90586523 EP	193
90586523 EP	194	fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	195	}
	196
	197	/*
	198	* fsnotify_modify - file was modified
	199	*/
	200	static inline void fsnotify_modify(struct dentry *dentry)
	201	{
	202	struct inode *inode = dentry->d_inode;
90586523	203	__u32 mask = FS_MODIFY;
0eeca283 RL	204
0eeca283 RL	205	if (S_ISDIR(inode->i_mode))
90586523	206	mask \|= FS_IN_ISDIR;
0eeca283 RL	207
	208	dnotify_parent(dentry, DN_MODIFY);
	209	inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
7c297722	210	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
90586523 EP	211
90586523 EP	212	fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	213	}
	214
	215	/*
	216	* fsnotify_open - file was opened
	217	*/
	218	static inline void fsnotify_open(struct dentry *dentry)
	219	{
	220	struct inode *inode = dentry->d_inode;
90586523	221	__u32 mask = FS_OPEN;
0eeca283 RL	222
0eeca283 RL	223	if (S_ISDIR(inode->i_mode))
90586523	224	mask \|= FS_IN_ISDIR;
0eeca283	225
0eeca283	226	inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
7c297722	227	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
90586523 EP	228
90586523 EP	229	fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	230	}
	231
	232	/*
	233	* fsnotify_close - file was closed
	234	*/
	235	static inline void fsnotify_close(struct file *file)
	236	{
0f7fc9e4	237	struct dentry *dentry = file->f_path.dentry;
0eeca283 RL	238	struct inode *inode = dentry->d_inode;
0eeca283 RL	239	const char *name = dentry->d_name.name;
aeb5d727	240	fmode_t mode = file->f_mode;
90586523	241	__u32 mask = (mode & FMODE_WRITE) ? FS_CLOSE_WRITE : FS_CLOSE_NOWRITE;
0eeca283 RL	242
0eeca283 RL	243	if (S_ISDIR(inode->i_mode))
90586523	244	mask \|= FS_IN_ISDIR;
0eeca283 RL	245
0eeca283 RL	246	inotify_dentry_parent_queue_event(dentry, mask, 0, name);
7c297722	247	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
90586523 EP	248
90586523 EP	249	fsnotify(inode, mask, file, FSNOTIFY_EVENT_FILE);
0eeca283 RL	250	}
	251
	252	/*
	253	* fsnotify_xattr - extended attributes were changed
	254	*/
	255	static inline void fsnotify_xattr(struct dentry *dentry)
	256	{
	257	struct inode *inode = dentry->d_inode;
90586523	258	__u32 mask = FS_ATTRIB;
0eeca283 RL	259
0eeca283 RL	260	if (S_ISDIR(inode->i_mode))
90586523	261	mask \|= FS_IN_ISDIR;
0eeca283 RL	262
0eeca283 RL	263	inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
7c297722	264	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
90586523 EP	265
90586523 EP	266	fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	267	}
	268
	269	/*
	270	* fsnotify_change - notify_change event. file was modified and/or metadata
	271	* was changed.
	272	*/
	273	static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
	274	{
	275	struct inode *inode = dentry->d_inode;
	276	int dn_mask = 0;
90586523	277	__u32 in_mask = 0;
0eeca283 RL	278
0eeca283 RL	279	if (ia_valid & ATTR_UID) {
90586523	280	in_mask \|= FS_ATTRIB;
0eeca283 RL	281	dn_mask \|= DN_ATTRIB;
	282	}
	283	if (ia_valid & ATTR_GID) {
90586523	284	in_mask \|= FS_ATTRIB;
0eeca283 RL	285	dn_mask \|= DN_ATTRIB;
	286	}
	287	if (ia_valid & ATTR_SIZE) {
90586523	288	in_mask \|= FS_MODIFY;
0eeca283 RL	289	dn_mask \|= DN_MODIFY;
	290	}
	291	/* both times implies a utime(s) call */
	292	if ((ia_valid & (ATTR_ATIME \| ATTR_MTIME)) == (ATTR_ATIME \| ATTR_MTIME))
	293	{
90586523	294	in_mask \|= FS_ATTRIB;
0eeca283 RL	295	dn_mask \|= DN_ATTRIB;
0eeca283 RL	296	} else if (ia_valid & ATTR_ATIME) {
90586523	297	in_mask \|= FS_ACCESS;
0eeca283 RL	298	dn_mask \|= DN_ACCESS;
0eeca283 RL	299	} else if (ia_valid & ATTR_MTIME) {
90586523	300	in_mask \|= FS_MODIFY;
0eeca283 RL	301	dn_mask \|= DN_MODIFY;
	302	}
	303	if (ia_valid & ATTR_MODE) {
90586523	304	in_mask \|= FS_ATTRIB;
0eeca283 RL	305	dn_mask \|= DN_ATTRIB;
	306	}
	307
	308	if (dn_mask)
	309	dnotify_parent(dentry, dn_mask);
	310	if (in_mask) {
	311	if (S_ISDIR(inode->i_mode))
90586523	312	in_mask \|= FS_IN_ISDIR;
7c297722	313	inotify_inode_queue_event(inode, in_mask, 0, NULL, NULL);
0eeca283 RL	314	inotify_dentry_parent_queue_event(dentry, in_mask, 0,
0eeca283 RL	315	dentry->d_name.name);
90586523	316	fsnotify(inode, in_mask, inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	317	}
	318	}
	319
90586523	320	#if defined(CONFIG_INOTIFY) \|\| defined(CONFIG_FSNOTIFY) /* notify helpers */
0eeca283 RL	321
	322	/*
	323	* fsnotify_oldname_init - save off the old filename before we change it
	324	*/
	325	static inline const char fsnotify_oldname_init(const char name)
	326	{
	327	return kstrdup(name, GFP_KERNEL);
	328	}
	329
	330	/*
	331	* fsnotify_oldname_free - free the name we got from fsnotify_oldname_init
	332	*/
	333	static inline void fsnotify_oldname_free(const char *old_name)
	334	{
	335	kfree(old_name);
	336	}
	337
90586523	338	#else /* CONFIG_INOTIFY \|\| CONFIG_FSNOTIFY */
0eeca283 RL	339
	340	static inline const char fsnotify_oldname_init(const char name)
	341	{
	342	return NULL;
	343	}
	344
	345	static inline void fsnotify_oldname_free(const char *old_name)
	346	{
	347	}
	348
	349	#endif /* ! CONFIG_INOTIFY */
	350
0eeca283	351	#endif /* _LINUX_FS_NOTIFY_H */