tree 59f73938d84b78b535c91282677054d1f3dd1697
parent 5322a59f14e4cae5f878b9c0c5612d403c230d7f
author Eric Paris <eparis@redhat.com> 1288300917 -0400
committer Eric Paris <eparis@redhat.com> 1288300934 -0400

fsnotify: implement a default maximum queue depth

Currently fanotify has no maximum queue depth.  Since fanotify is
CAP_SYS_ADMIN only this does not pose a normal user DoS issue, but it
certianly is possible that an fanotify listener which can't keep up could
OOM the box.  This patch implements a default 16k depth.  This is the same
default depth used by inotify, but given fanotify's better queue merging in
many situations this queue will contain many additional useful events by
comparison.

Signed-off-by: Eric Paris <eparis@redhat.com>