GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-07-21 14:21:48 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

fsnotify: Move object pointer to fsnotify_mark_connector

Browse source 
Move pointer to inode / vfsmount from mark itself to the
fsnotify_mark_connector structure. This is another step on the path
towards decoupling inode / vfsmount lifetime from notification mark
lifetime.

Reviewed-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara 2017-03-14 14:29:35 +01:00
parent 9dd813c15b
commit 86ffe245c4
8 changed files with 74 additions and 49 deletions
Download patch file Download diff file Expand all files Collapse all files

17
include/linux/fsnotify_backend.h
View file

@ -200,6 +200,13 @@ struct fsnotify_group {
* freed.
*/
struct fsnotify_mark_connector {
#define FSNOTIFY_OBJ_TYPE_INODE 0x01
#define FSNOTIFY_OBJ_TYPE_VFSMOUNT 0x02
unsigned int flags; /* Type of object [lock] */
union { /* Object pointer [lock] */
struct inode *inode;
struct vfsmount *mnt;
};
struct hlist_head list;
};
@ -234,14 +241,10 @@ struct fsnotify_mark {
spinlock_t lock;
/* List of marks for inode / vfsmount [obj_lock] */
struct hlist_node obj_list;
union { /* Object pointer [mark->lock, group->mark_mutex] */
struct inode *inode; /* inode this mark is associated with */
struct vfsmount *mnt; /* vfsmount this mark is associated with */
};
/* Head of list of marks for an object [mark->lock, group->mark_mutex] */
struct fsnotify_mark_connector *connector;
/* Events types to ignore [mark->lock, group->mark_mutex] */
__u32 ignored_mask;
#define FSNOTIFY_MARK_FLAG_INODE 0x01
#define FSNOTIFY_MARK_FLAG_VFSMOUNT 0x02
#define FSNOTIFY_MARK_FLAG_OBJECT_PINNED 0x04
#define FSNOTIFY_MARK_FLAG_IGNORED_SURV_MODIFY 0x08
#define FSNOTIFY_MARK_FLAG_ALIVE 0x10
@ -353,7 +356,7 @@ extern void fsnotify_free_mark(struct fsnotify_mark *mark);
extern void fsnotify_clear_vfsmount_marks_by_group(struct fsnotify_group *group);
/* run all the marks in a group, and clear all of the inode marks */
extern void fsnotify_clear_inode_marks_by_group(struct fsnotify_group *group);
/* run all the marks in a group, and clear all of the marks where mark->flags & flags is true*/
/* run all the marks in a group, and clear all of the marks attached to given object type */
extern void fsnotify_clear_marks_by_group_flags(struct fsnotify_group *group, unsigned int flags);
extern void fsnotify_connector_free(struct fsnotify_mark_connector **connp);
extern void fsnotify_get_mark(struct fsnotify_mark *mark);