From ccadaba2f36b15b5d3c5eb0af744be5328c5594a Mon Sep 17 00:00:00 2001
From: Michael Kerrisk <mtk.manpages@gmail.com>
Date: Fri, 16 Jan 2009 21:40:15 +1300
Subject: [PATCH] epoll_ctl.2: Document ENOSPC error (new in Linux 2.6.28)

This error results when the limit imposed by
/proc/sys/fs/epoll/max_user_watches is encountered.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---
 man2/epoll_ctl.2 | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/man2/epoll_ctl.2 b/man2/epoll_ctl.2
index b4d048e66..725c445e2 100644
--- a/man2/epoll_ctl.2
+++ b/man2/epoll_ctl.2
@@ -205,6 +205,15 @@ is not registered on with this epoll instance.
 There was insufficient memory to handle the requested
 .I op
 control operation.
+.TP ENOSPC
+The limit imposed by
+.I /proc/sys/fs/epoll/max_user_watches
+was encountered while trying to register
+.RB ( EPOLL_CTL_ADD )
+a new file descriptor on an epoll instance.
+See
+.BR epoll (7)
+for further details.
 .TP
 .B EPERM
 The target file