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fsnotify: use typedef fsnotify_connp_t for brevity

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The object marks manipulation functions fsnotify_destroy_marks()
fsnotify_find_mark() and their helpers take an argument of type
struct fsnotify_mark_connector __rcu ** to dereference the connector
pointer. use a typedef to describe this type for brevity.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Amir Goldstein 2018-06-23 17:54:47 +03:00 committed by Jan Kara
parent 813835028e
commit 9b6e543450
3 changed files with 15 additions and 16 deletions
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4
fs/notify/fsnotify.h
View File

@ -19,8 +19,8 @@ extern struct srcu_struct fsnotify_mark_srcu;
extern int fsnotify_compare_groups(struct fsnotify_group *a,
struct fsnotify_group *b);
/* Destroy all marks connected via given connector */
extern void fsnotify_destroy_marks(struct fsnotify_mark_connector __rcu **connp);
/* Destroy all marks attached to an object via connector */
extern void fsnotify_destroy_marks(fsnotify_connp_t *connp);
/* run the list of all marks associated with inode and destroy them */
static inline void fsnotify_clear_marks_by_inode(struct inode *inode)
{

20
fs/notify/mark.c
View File

@ -436,10 +436,9 @@ int fsnotify_compare_groups(struct fsnotify_group *a, struct fsnotify_group *b)
return -1;
}
static int fsnotify_attach_connector_to_object(
struct fsnotify_mark_connector __rcu **connp,
struct inode *inode,
struct vfsmount *mnt)
static int fsnotify_attach_connector_to_object(fsnotify_connp_t *connp,
struct inode *inode,
struct vfsmount *mnt)
{
struct fsnotify_mark_connector *conn;
@ -476,7 +475,7 @@ static int fsnotify_attach_connector_to_object(
* they are sure list cannot go away under them.
*/
static struct fsnotify_mark_connector *fsnotify_grab_connector(
struct fsnotify_mark_connector __rcu **connp)
fsnotify_connp_t *connp)
{
struct fsnotify_mark_connector *conn;
int idx;
@ -508,7 +507,7 @@ static int fsnotify_add_mark_list(struct fsnotify_mark *mark,
{
struct fsnotify_mark *lmark, *last = NULL;
struct fsnotify_mark_connector *conn;
struct fsnotify_mark_connector __rcu **connp;
fsnotify_connp_t *connp;
int cmp;
int err = 0;
@ -629,9 +628,8 @@ int fsnotify_add_mark(struct fsnotify_mark *mark, struct inode *inode,
* Given a list of marks, find the mark associated with given group. If found
* take a reference to that mark and return it, else return NULL.
*/
struct fsnotify_mark *fsnotify_find_mark(
struct fsnotify_mark_connector __rcu **connp,
struct fsnotify_group *group)
struct fsnotify_mark *fsnotify_find_mark(fsnotify_connp_t *connp,
struct fsnotify_group *group)
{
struct fsnotify_mark_connector *conn;
struct fsnotify_mark *mark;
@ -697,8 +695,8 @@ clear:
}
}
/* Destroy all marks attached to inode / vfsmount */
void fsnotify_destroy_marks(struct fsnotify_mark_connector __rcu **connp)
/* Destroy all marks attached to an object via connector */
void fsnotify_destroy_marks(fsnotify_connp_t *connp)
{
struct fsnotify_mark_connector *conn;
struct fsnotify_mark *mark, *old_mark = NULL;

7
include/linux/fsnotify_backend.h
View File

@ -268,6 +268,8 @@ struct fsnotify_mark_connector {
struct hlist_head list;
};
typedef struct fsnotify_mark_connector __rcu *fsnotify_connp_t;
/*
* A mark is simply an object attached to an in core inode which allows an
* fsnotify listener to indicate they are either no longer interested in events
@ -394,9 +396,8 @@ extern void fsnotify_recalc_mask(struct fsnotify_mark_connector *conn);
extern void fsnotify_init_mark(struct fsnotify_mark *mark,
struct fsnotify_group *group);
/* Find mark belonging to given group in the list of marks */
extern struct fsnotify_mark *fsnotify_find_mark(
struct fsnotify_mark_connector __rcu **connp,
struct fsnotify_group *group);
extern struct fsnotify_mark *fsnotify_find_mark(fsnotify_connp_t *connp,
struct fsnotify_group *group);
/* attach the mark to the inode or vfsmount */
extern int fsnotify_add_mark(struct fsnotify_mark *mark, struct inode *inode,
struct vfsmount *mnt, int allow_dups);