35  * Legacy fanotify marks limits (8192) is per group and we introduced a tunable
36  * limit of marks per user, similar to inotify.  Effectively, the legacy limit
37  * of fanotify marks per user is <max marks per group> * <max groups per user>.
1297 	/* Only detached marks left? */  in fanotify_set_mark_fsid()
1301 	/* Do not allow mixing of marks with weak and strong fsid */  in fanotify_set_mark_fsid()
1305 	/* Allow mixing of marks with strong fsid from different fs */  in fanotify_set_mark_fsid()
1309 	/* Do not allow mixing marks with weak fsid from different fs */  in fanotify_set_mark_fsid()
1313 	/* Do not allow mixing marks from different btrfs sub-volumes */  in fanotify_set_mark_fsid()
1333 	 * Enforce per user marks limits per user in all containing user ns.  in fanotify_add_new_mark()
1516 		 * unlimited queue/marks.  in SYSCALL_DEFINE2()
1523 		 * prevents setting mount/filesystem marks on this group and  in SYSCALL_DEFINE2()
1782 	 * mount and sb marks are not allowed on kernel internal pseudo fs,  in fanotify_events_supported()
1908 	 * marks.  This also includes setting up such marks by a group that  in do_fanotify_mark()
1932 	 * Evictable is only relevant for inode marks, because only inode object  in do_fanotify_mark()
2015 		/* FAN_MARK_IGNORE requires SURV_MODIFY for sb/mount/dir marks */  in do_fanotify_mark()
2025 	/* Mask out FAN_EVENT_ON_CHILD flag for sb/mount/non-dir marks */  in do_fanotify_mark()
2090 	 * marks limited to the range [8192, 1048576]. mount and sb marks are  in fanotify_user_setup()
2091 	 * a lot cheaper than inode marks, but there is no reason for a user  in fanotify_user_setup()
2092 	 * to have many of those, so calculate by the cost of inode marks.  in fanotify_user_setup()