On Sun, 06.11.11 18:15, Davidlohr Bueso (dave@xxxxxxx) wrote: > From: Davidlohr Bueso <dave@xxxxxxx> > > This patch adds a new RLIMIT_TMPFSQUOTA resource limit to restrict an individual user's quota across all mounted tmpfs filesystems. > It's well known that a user can easily fill up commonly used directories (like /tmp, /dev/shm) causing programs to break through DoS. Thanks a lot for this work! One comment without looking at the patch in detail: > + if (atomic_long_read(&user->shmem_bytes) + len > > + rlimit(RLIMIT_TMPFSQUOTA)) > + return -ENOSPC; This should be EDQUOT "Disk quota exceeded", not ENOSPC "No space left on device". Lennart -- Lennart Poettering - Red Hat, Inc. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>