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[v2,10/20] fanotify: generalize fanotify_should_send_event()

Message ID 1522934301-6520-11-git-send-email-amir73il@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Amir Goldstein April 5, 2018, 1:18 p.m. UTC
Use foreach_obj_type macros to generalize the code that filters
events by marks mask and ignored_mask.

This is going to be used for adding mark of super block object type.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
---
 fs/notify/fanotify/fanotify.c | 37 ++++++++++++++++++-------------------
 1 file changed, 18 insertions(+), 19 deletions(-)
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Patch

diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index 86ccf79c0671..c770dd36c3fe 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -91,14 +91,13 @@  static bool fanotify_should_send_event(struct fsnotify_iter_info *iter_info,
 				       u32 event_mask, const void *data,
 				       int data_type)
 {
-	struct fsnotify_mark *inode_mark = fsnotify_iter_inode_mark(iter_info);
-	struct fsnotify_mark *vfsmnt_mark = fsnotify_iter_vfsmount_mark(iter_info);
 	__u32 marks_mask = 0, marks_ignored_mask = 0;
 	const struct path *path = data;
+	struct fsnotify_mark *mark;
+	int type;
 
-	pr_debug("%s: inode_mark=%p vfsmnt_mark=%p mask=%x data=%p"
-		 " data_type=%d\n", __func__, inode_mark, vfsmnt_mark,
-		 event_mask, data, data_type);
+	pr_debug("%s: type_mask=%x mask=%x data=%p data_type=%d\n",
+		 __func__, iter_info->type_mask, event_mask, data, data_type);
 
 	/* if we don't have enough info to send an event to userspace say no */
 	if (data_type != FSNOTIFY_EVENT_PATH)
@@ -109,20 +108,20 @@  static bool fanotify_should_send_event(struct fsnotify_iter_info *iter_info,
 	    !d_can_lookup(path->dentry))
 		return false;
 
-	/*
-	 * if the event is for a child and this inode doesn't care about
-	 * events on the child, don't send it!
-	 */
-	if (inode_mark &&
-	    (!(event_mask & FS_EVENT_ON_CHILD) ||
-	     (inode_mark->mask & FS_EVENT_ON_CHILD))) {
-		marks_mask |= inode_mark->mask;
-		marks_ignored_mask |= inode_mark->ignored_mask;
-	}
-
-	if (vfsmnt_mark) {
-		marks_mask |= vfsmnt_mark->mask;
-		marks_ignored_mask |= vfsmnt_mark->ignored_mask;
+	fsnotify_iter_foreach_obj_type_mark(iter_info, type, mark) {
+		/*
+		 * if the event is for a child and this inode doesn't care about
+		 * events on the child, don't send it!
+		 */
+		if (mark && type == FSNOTIFY_OBJ_TYPE_INODE &&
+		    (event_mask & FS_EVENT_ON_CHILD) &&
+		    !(mark->mask & FS_EVENT_ON_CHILD))
+			continue;
+
+		if (mark) {
+			marks_mask |= mark->mask;
+			marks_ignored_mask |= mark->ignored_mask;
+		}
 	}
 
 	if (d_is_dir(path->dentry) &&