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authorEric Paris <eparis@redhat.com>2010-10-27 00:10:09 -0400
committerEric Paris <eparis@redhat.com>2010-10-27 00:12:58 -0400
commit25f519706b7c7af8fc9a38bc24a2dd69b6f53bcf (patch)
treecd6bb0183b484f05d5479e65d797443a86ad407c /include
parent8bcf8e8ff11d5da4e03601d7299975b0e0c1410a (diff)
fanotify: limit number of listeners per user
fanotify currently has no limit on the number of listeners a given user can have open. This patch limits the total number of listeners per user to 128. This is the same as the inotify default limit. Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/fsnotify_backend.h1
-rw-r--r--include/linux/sched.h3
2 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index f839523463de..ceb02b797b07 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -163,6 +163,7 @@ struct fsnotify_group {
#endif /* CONFIG_FANOTIFY_ACCESS_PERMISSIONS */
int f_flags;
unsigned int max_marks;
+ struct user_struct *user;
} fanotify_data;
#endif /* CONFIG_FANOTIFY */
};
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 56154bbb8da9..21a86da80e0b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -668,6 +668,9 @@ struct user_struct {
atomic_t inotify_watches; /* How many inotify watches does this user have? */
atomic_t inotify_devs; /* How many inotify devs does this user have opened? */
#endif
+#ifdef CONFIG_FANOTIFY
+ atomic_t fanotify_listeners;
+#endif
#ifdef CONFIG_EPOLL
atomic_t epoll_watches; /* The number of file descriptors currently watched */
#endif