fsnotify: let connector point to an abstract object
Make the code to attach/detach a connector to object more generic
by letting the fsnotify connector point to an abstract fsnotify_connp_t.
Code that needs to dereference an inode or mount object now uses the
helpers fsnotify_conn_{inode,mount}.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index c99ebaa..02feef93 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -168,7 +168,8 @@
/* Function to return search key in our hash from inode. */
static unsigned long inode_to_key(const struct inode *inode)
{
- return (unsigned long)inode;
+ /* Use address pointed to by connector->obj as the key */
+ return (unsigned long)&inode->i_fsnotify_marks;
}
/*
@@ -183,7 +184,7 @@
*/
if (WARN_ON_ONCE(!chunk->mark.connector))
return 0;
- return (unsigned long)chunk->mark.connector->inode;
+ return (unsigned long)chunk->mark.connector->obj;
}
static inline struct list_head *chunk_hash(unsigned long key)
@@ -258,7 +259,7 @@
spin_lock(&entry->lock);
/*
* mark_mutex protects mark from getting detached and thus also from
- * mark->connector->inode getting NULL.
+ * mark->connector->obj getting NULL.
*/
if (chunk->dead || !(entry->flags & FSNOTIFY_MARK_FLAG_ATTACHED)) {
spin_unlock(&entry->lock);
@@ -288,8 +289,8 @@
if (!new)
goto Fallback;
- if (fsnotify_add_inode_mark_locked(&new->mark, entry->connector->inode,
- 1)) {
+ if (fsnotify_add_mark_locked(&new->mark, entry->connector->obj,
+ FSNOTIFY_OBJ_TYPE_INODE, 1)) {
fsnotify_put_mark(&new->mark);
goto Fallback;
}
@@ -423,7 +424,7 @@
spin_lock(&old_entry->lock);
/*
* mark_mutex protects mark from getting detached and thus also from
- * mark->connector->inode getting NULL.
+ * mark->connector->obj getting NULL.
*/
if (!(old_entry->flags & FSNOTIFY_MARK_FLAG_ATTACHED)) {
/* old_entry is being shot, lets just lie */
@@ -434,8 +435,8 @@
return -ENOENT;
}
- if (fsnotify_add_inode_mark_locked(chunk_entry,
- old_entry->connector->inode, 1)) {
+ if (fsnotify_add_mark_locked(chunk_entry, old_entry->connector->obj,
+ FSNOTIFY_OBJ_TYPE_INODE, 1)) {
spin_unlock(&old_entry->lock);
mutex_unlock(&old_entry->group->mark_mutex);
fsnotify_put_mark(chunk_entry);