[deliverable/linux.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)
{
	__fsnotify_d_instantiate(entry, inode);

	inotify_d_instantiate(entry, inode);
}

/* Notify this dentry's parent about a child's events. */
static inline void fsnotify_parent(struct dentry *dentry, __u32 mask)
{
	__fsnotify_parent(dentry, mask);

	inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
}

/*
 * 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)
{
	/*
	 * On move we need to update entry->d_flags to indicate if the new parent
	 * cares about events from this entry.
	 */
	__fsnotify_update_dcache_flags(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);

	fsnotify_parent(dentry, mask);
}

/*
 * 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_inode_queue_event(inode, mask, 0, NULL, NULL);

	fsnotify_parent(dentry, mask);
	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_inode_queue_event(inode, mask, 0, NULL, NULL);

	fsnotify_parent(dentry, mask);
	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_inode_queue_event(inode, mask, 0, NULL, NULL);

	fsnotify_parent(dentry, mask);
	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;
	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_inode_queue_event(inode, mask, 0, NULL, NULL);

	fsnotify_parent(dentry, mask);
	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_inode_queue_event(inode, mask, 0, NULL, NULL);

	fsnotify_parent(dentry, mask);
	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);

		fsnotify_parent(dentry, in_mask);
		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	{
c28f7e56 EP	26	__fsnotify_d_instantiate(entry, inode);
c28f7e56 EP	27
c32ccd87 NP	28	inotify_d_instantiate(entry, inode);
	29	}
	30
c28f7e56 EP	31	/* Notify this dentry's parent about a child's events. */
	32	static inline void fsnotify_parent(struct dentry *dentry, __u32 mask)
	33	{
	34	__fsnotify_parent(dentry, mask);
	35
	36	inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
	37	}
	38
c32ccd87 NP	39	/*
	40	* fsnotify_d_move - entry has been moved
	41	* Called with dcache_lock and entry->d_lock held.
	42	*/
	43	static inline void fsnotify_d_move(struct dentry *entry)
	44	{
c28f7e56 EP	45	/*
	46	* On move we need to update entry->d_flags to indicate if the new parent
	47	* cares about events from this entry.
	48	*/
	49	__fsnotify_update_dcache_flags(entry);
	50
c32ccd87 NP	51	inotify_d_move(entry);
	52	}
	53
90586523 EP	54	/*
	55	* fsnotify_link_count - inode's link count changed
	56	*/
	57	static inline void fsnotify_link_count(struct inode *inode)
	58	{
	59	inotify_inode_queue_event(inode, IN_ATTRIB, 0, NULL, NULL);
	60
	61	fsnotify(inode, FS_ATTRIB, inode, FSNOTIFY_EVENT_INODE);
	62	}
	63
0eeca283 RL	64	/*
	65	* fsnotify_move - file old_name at old_dir was moved to new_name at new_dir
	66	*/
	67	static inline void fsnotify_move(struct inode old_dir, struct inode new_dir,
	68	const char old_name, const char new_name,
5a190ae6	69	int isdir, struct inode target, struct dentry moved)
0eeca283	70	{
5a190ae6	71	struct inode *source = moved->d_inode;
0eeca283	72	u32 cookie = inotify_get_cookie();
90586523 EP	73	__u32 old_dir_mask = 0;
90586523 EP	74	__u32 new_dir_mask = 0;
0eeca283	75
90586523	76	if (old_dir == new_dir) {
0eeca283	77	inode_dir_notify(old_dir, DN_RENAME);
90586523 EP	78	old_dir_mask = FS_DN_RENAME;
90586523 EP	79	} else {
0eeca283	80	inode_dir_notify(old_dir, DN_DELETE);
90586523	81	old_dir_mask = FS_DELETE;
0eeca283	82	inode_dir_notify(new_dir, DN_CREATE);
90586523	83	new_dir_mask = FS_CREATE;
0eeca283 RL	84	}
0eeca283 RL	85
90586523	86	if (isdir) {
0eeca283	87	isdir = IN_ISDIR;
90586523 EP	88	old_dir_mask \|= FS_IN_ISDIR;
	89	new_dir_mask \|= FS_IN_ISDIR;
	90	}
	91
	92	old_dir_mask \|= FS_MOVED_FROM;
	93	new_dir_mask \|= FS_MOVED_TO;
	94
7c297722 AG	95	inotify_inode_queue_event(old_dir, IN_MOVED_FROM\|isdir,cookie,old_name,
	96	source);
	97	inotify_inode_queue_event(new_dir, IN_MOVED_TO\|isdir, cookie, new_name,
	98	source);
75449536	99
90586523 EP	100	fsnotify(old_dir, old_dir_mask, old_dir, FSNOTIFY_EVENT_INODE);
	101	fsnotify(new_dir, new_dir_mask, new_dir, FSNOTIFY_EVENT_INODE);
	102
75449536	103	if (target) {
7c297722	104	inotify_inode_queue_event(target, IN_DELETE_SELF, 0, NULL, NULL);
75449536	105	inotify_inode_is_dead(target);
90586523 EP	106
	107	/* this is really a link_count change not a removal */
	108	fsnotify_link_count(target);
75449536	109	}
89204c40 JM	110
89204c40 JM	111	if (source) {
7c297722	112	inotify_inode_queue_event(source, IN_MOVE_SELF, 0, NULL, NULL);
90586523	113	fsnotify(source, FS_MOVE_SELF, moved->d_inode, FSNOTIFY_EVENT_INODE);
89204c40	114	}
5a190ae6	115	audit_inode_child(new_name, moved, new_dir);
0eeca283 RL	116	}
0eeca283 RL	117
3be25f49 EP	118	/*
	119	* fsnotify_inode_delete - and inode is being evicted from cache, clean up is needed
	120	*/
	121	static inline void fsnotify_inode_delete(struct inode *inode)
	122	{
	123	__fsnotify_inode_delete(inode);
	124	}
	125
7a91bf7f JM	126	/*
	127	* fsnotify_nameremove - a filename was removed from a directory
	128	*/
	129	static inline void fsnotify_nameremove(struct dentry *dentry, int isdir)
	130	{
90586523 EP	131	__u32 mask = FS_DELETE;
90586523 EP	132
7a91bf7f	133	if (isdir)
90586523	134	mask \|= FS_IN_ISDIR;
7a91bf7f	135	dnotify_parent(dentry, DN_DELETE);
c28f7e56 EP	136
c28f7e56 EP	137	fsnotify_parent(dentry, mask);
7a91bf7f JM	138	}
	139
	140	/*
	141	* fsnotify_inoderemove - an inode is going away
	142	*/
	143	static inline void fsnotify_inoderemove(struct inode *inode)
	144	{
7c297722	145	inotify_inode_queue_event(inode, IN_DELETE_SELF, 0, NULL, NULL);
7a91bf7f	146	inotify_inode_is_dead(inode);
7a91bf7f	147
90586523	148	fsnotify(inode, FS_DELETE_SELF, inode, FSNOTIFY_EVENT_INODE);
3be25f49	149	__fsnotify_inode_delete(inode);
ece95912 JK	150	}
ece95912 JK	151
0eeca283 RL	152	/*
	153	* fsnotify_create - 'name' was linked in
	154	*/
f38aa942	155	static inline void fsnotify_create(struct inode inode, struct dentry dentry)
0eeca283 RL	156	{
0eeca283 RL	157	inode_dir_notify(inode, DN_CREATE);
7c297722 AG	158	inotify_inode_queue_event(inode, IN_CREATE, 0, dentry->d_name.name,
7c297722 AG	159	dentry->d_inode);
5a190ae6	160	audit_inode_child(dentry->d_name.name, dentry, inode);
90586523 EP	161
90586523 EP	162	fsnotify(inode, FS_CREATE, dentry->d_inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	163	}
0eeca283 RL	164
ece95912 JK	165	/*
	166	* fsnotify_link - new hardlink in 'inode' directory
	167	* Note: We have to pass also the linked inode ptr as some filesystems leave
	168	* new_dentry->d_inode NULL and instantiate inode pointer later
	169	*/
	170	static inline void fsnotify_link(struct inode dir, struct inode inode, struct dentry *new_dentry)
	171	{
	172	inode_dir_notify(dir, DN_CREATE);
	173	inotify_inode_queue_event(dir, IN_CREATE, 0, new_dentry->d_name.name,
	174	inode);
	175	fsnotify_link_count(inode);
	176	audit_inode_child(new_dentry->d_name.name, new_dentry, dir);
90586523 EP	177
90586523 EP	178	fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE);
ece95912 JK	179	}
ece95912 JK	180
0eeca283 RL	181	/*
	182	* fsnotify_mkdir - directory 'name' was created
	183	*/
f38aa942	184	static inline void fsnotify_mkdir(struct inode inode, struct dentry dentry)
0eeca283	185	{
90586523 EP	186	__u32 mask = (FS_CREATE \| FS_IN_ISDIR);
	187	struct inode *d_inode = dentry->d_inode;
	188
0eeca283	189	inode_dir_notify(inode, DN_CREATE);
90586523	190	inotify_inode_queue_event(inode, mask, 0, dentry->d_name.name, d_inode);
5a190ae6	191	audit_inode_child(dentry->d_name.name, dentry, inode);
90586523 EP	192
90586523 EP	193	fsnotify(inode, mask, d_inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	194	}
	195
	196	/*
	197	* fsnotify_access - file was read
	198	*/
	199	static inline void fsnotify_access(struct dentry *dentry)
	200	{
	201	struct inode *inode = dentry->d_inode;
90586523	202	__u32 mask = FS_ACCESS;
0eeca283 RL	203
0eeca283 RL	204	if (S_ISDIR(inode->i_mode))
90586523	205	mask \|= FS_IN_ISDIR;
0eeca283 RL	206
0eeca283 RL	207	dnotify_parent(dentry, DN_ACCESS);
7c297722	208	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
90586523	209
c28f7e56	210	fsnotify_parent(dentry, mask);
90586523	211	fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	212	}
	213
	214	/*
	215	* fsnotify_modify - file was modified
	216	*/
	217	static inline void fsnotify_modify(struct dentry *dentry)
	218	{
	219	struct inode *inode = dentry->d_inode;
90586523	220	__u32 mask = FS_MODIFY;
0eeca283 RL	221
0eeca283 RL	222	if (S_ISDIR(inode->i_mode))
90586523	223	mask \|= FS_IN_ISDIR;
0eeca283 RL	224
0eeca283 RL	225	dnotify_parent(dentry, DN_MODIFY);
7c297722	226	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
90586523	227
c28f7e56	228	fsnotify_parent(dentry, mask);
90586523	229	fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	230	}
	231
	232	/*
	233	* fsnotify_open - file was opened
	234	*/
	235	static inline void fsnotify_open(struct dentry *dentry)
	236	{
	237	struct inode *inode = dentry->d_inode;
90586523	238	__u32 mask = FS_OPEN;
0eeca283 RL	239
0eeca283 RL	240	if (S_ISDIR(inode->i_mode))
90586523	241	mask \|= FS_IN_ISDIR;
0eeca283	242
7c297722	243	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
90586523	244
c28f7e56	245	fsnotify_parent(dentry, mask);
90586523	246	fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	247	}
	248
	249	/*
	250	* fsnotify_close - file was closed
	251	*/
	252	static inline void fsnotify_close(struct file *file)
	253	{
0f7fc9e4	254	struct dentry *dentry = file->f_path.dentry;
0eeca283	255	struct inode *inode = dentry->d_inode;
aeb5d727	256	fmode_t mode = file->f_mode;
90586523	257	__u32 mask = (mode & FMODE_WRITE) ? FS_CLOSE_WRITE : FS_CLOSE_NOWRITE;
0eeca283 RL	258
0eeca283 RL	259	if (S_ISDIR(inode->i_mode))
90586523	260	mask \|= FS_IN_ISDIR;
0eeca283	261
7c297722	262	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
90586523	263
c28f7e56	264	fsnotify_parent(dentry, mask);
90586523	265	fsnotify(inode, mask, file, FSNOTIFY_EVENT_FILE);
0eeca283 RL	266	}
	267
	268	/*
	269	* fsnotify_xattr - extended attributes were changed
	270	*/
	271	static inline void fsnotify_xattr(struct dentry *dentry)
	272	{
	273	struct inode *inode = dentry->d_inode;
90586523	274	__u32 mask = FS_ATTRIB;
0eeca283 RL	275
0eeca283 RL	276	if (S_ISDIR(inode->i_mode))
90586523	277	mask \|= FS_IN_ISDIR;
0eeca283	278
7c297722	279	inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
90586523	280
c28f7e56	281	fsnotify_parent(dentry, mask);
90586523	282	fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	283	}
	284
	285	/*
	286	* fsnotify_change - notify_change event. file was modified and/or metadata
	287	* was changed.
	288	*/
	289	static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
	290	{
	291	struct inode *inode = dentry->d_inode;
	292	int dn_mask = 0;
90586523	293	__u32 in_mask = 0;
0eeca283 RL	294
0eeca283 RL	295	if (ia_valid & ATTR_UID) {
90586523	296	in_mask \|= FS_ATTRIB;
0eeca283 RL	297	dn_mask \|= DN_ATTRIB;
	298	}
	299	if (ia_valid & ATTR_GID) {
90586523	300	in_mask \|= FS_ATTRIB;
0eeca283 RL	301	dn_mask \|= DN_ATTRIB;
	302	}
	303	if (ia_valid & ATTR_SIZE) {
90586523	304	in_mask \|= FS_MODIFY;
0eeca283 RL	305	dn_mask \|= DN_MODIFY;
	306	}
	307	/* both times implies a utime(s) call */
	308	if ((ia_valid & (ATTR_ATIME \| ATTR_MTIME)) == (ATTR_ATIME \| ATTR_MTIME))
	309	{
90586523	310	in_mask \|= FS_ATTRIB;
0eeca283 RL	311	dn_mask \|= DN_ATTRIB;
0eeca283 RL	312	} else if (ia_valid & ATTR_ATIME) {
90586523	313	in_mask \|= FS_ACCESS;
0eeca283 RL	314	dn_mask \|= DN_ACCESS;
0eeca283 RL	315	} else if (ia_valid & ATTR_MTIME) {
90586523	316	in_mask \|= FS_MODIFY;
0eeca283 RL	317	dn_mask \|= DN_MODIFY;
	318	}
	319	if (ia_valid & ATTR_MODE) {
90586523	320	in_mask \|= FS_ATTRIB;
0eeca283 RL	321	dn_mask \|= DN_ATTRIB;
	322	}
	323
	324	if (dn_mask)
	325	dnotify_parent(dentry, dn_mask);
	326	if (in_mask) {
	327	if (S_ISDIR(inode->i_mode))
90586523	328	in_mask \|= FS_IN_ISDIR;
7c297722	329	inotify_inode_queue_event(inode, in_mask, 0, NULL, NULL);
c28f7e56 EP	330
c28f7e56 EP	331	fsnotify_parent(dentry, in_mask);
90586523	332	fsnotify(inode, in_mask, inode, FSNOTIFY_EVENT_INODE);
0eeca283 RL	333	}
	334	}
	335
90586523	336	#if defined(CONFIG_INOTIFY) \|\| defined(CONFIG_FSNOTIFY) /* notify helpers */
0eeca283 RL	337
	338	/*
	339	* fsnotify_oldname_init - save off the old filename before we change it
	340	*/
	341	static inline const char fsnotify_oldname_init(const char name)
	342	{
	343	return kstrdup(name, GFP_KERNEL);
	344	}
	345
	346	/*
	347	* fsnotify_oldname_free - free the name we got from fsnotify_oldname_init
	348	*/
	349	static inline void fsnotify_oldname_free(const char *old_name)
	350	{
	351	kfree(old_name);
	352	}
	353
90586523	354	#else /* CONFIG_INOTIFY \|\| CONFIG_FSNOTIFY */
0eeca283 RL	355
	356	static inline const char fsnotify_oldname_init(const char name)
	357	{
	358	return NULL;
	359	}
	360
	361	static inline void fsnotify_oldname_free(const char *old_name)
	362	{
	363	}
	364
	365	#endif /* ! CONFIG_INOTIFY */
	366
0eeca283	367	#endif /* _LINUX_FS_NOTIFY_H */