Commit 33af5e32 authored by Eric Paris's avatar Eric Paris
Browse files

fsnotify: ignored_mask - excluding notification

The ignored_mask is a new mask which is part of fsnotify marks.  A group's
should_send_event() function can use the ignored mask to determine that
certain events are not of interest.  In particular if a group registers a
mask including FS_OPEN on a vfsmount they could add FS_OPEN to the
ignored_mask for individual inodes and not send open events for those
Signed-off-by: default avatarEric Paris <>
parent 90b1e7a5
......@@ -190,6 +190,12 @@ void fsnotify_set_mark_mask_locked(struct fsnotify_mark *mark, __u32 mask)
fsnotify_set_inode_mark_mask_locked(mark, mask);
void fsnotify_set_mark_ignored_mask_locked(struct fsnotify_mark *mark, __u32 mask)
mark->ignored_mask = mask;
* Attach an initialized mark to a given group and fs object.
......@@ -266,6 +266,7 @@ struct fsnotify_mark {
struct fsnotify_inode_mark i;
struct fsnotify_vfsmount_mark m;
__u32 ignored_mask; /* events types to ignore */
struct list_head free_g_list; /* tmp list used when freeing this mark */
......@@ -373,6 +374,8 @@ extern struct fsnotify_mark *fsnotify_find_inode_mark(struct fsnotify_group *gro
extern struct fsnotify_mark *fsnotify_find_vfsmount_mark(struct fsnotify_group *group, struct vfsmount *mnt);
/* copy the values from old into new */
extern void fsnotify_duplicate_mark(struct fsnotify_mark *new, struct fsnotify_mark *old);
/* set the ignored_mask of a mark */
extern void fsnotify_set_mark_ignored_mask_locked(struct fsnotify_mark *mark, __u32 mask);
/* set the mask of a mark (might pin the object into memory */
extern void fsnotify_set_mark_mask_locked(struct fsnotify_mark *mark, __u32 mask);
/* attach the mark to both the group and the inode */
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment