bits currently used. The available permissions are: view This permission allows reading attributes ... bits for each category are KEY_POS_VIEW , KEY_USR_VIEW , KEY_GRP_VIEWrequesting process. • The key grants view , read , and search permissions to the key possessor ... well as view permission for the key user. • The description (namespecial file /sys/block/ device /queue/scheduler . One can view the current I/O scheduler via the /sysspecial file /sys/block/ device /queue/scheduler . One can view the current I/O scheduler via the /sysseals program to view the seals that have been placed on the file: $ readlink /proc/11775/fd/3