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authorEric Paris <eparis@redhat.com>2010-10-28 17:21:57 -0400
committerEric Paris <eparis@redhat.com>2010-10-28 17:22:14 -0400
commit2529a0df0f64dab1f60ae08e038b89c53a6b4c02 (patch)
tree59f73938d84b78b535c91282677054d1f3dd1697 /fs/eventpoll.c
parent5322a59f14e4cae5f878b9c0c5612d403c230d7f (diff)
downloadop-kernel-dev-2529a0df0f64dab1f60ae08e038b89c53a6b4c02.zip
op-kernel-dev-2529a0df0f64dab1f60ae08e038b89c53a6b4c02.tar.gz
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>
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