From: Michael Kerrisk <mtk.manpages@gmail.com>
Date: Thu, 10 Mar 2016 20:01:17 +0000 (+0100)
Subject: epoll_ctl.2: Document ELOOP error for circular monitoring loops
X-Git-Tag: man-pages-4.05~39
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=813596e5f23acb73ca74f0b35ba897854c3c9fb6;p=thirdparty%2Fman-pages.git

epoll_ctl.2: Document ELOOP error for circular monitoring loops

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---

diff --git a/man2/epoll_ctl.2 b/man2/epoll_ctl.2
index dace16c07d..476b36770b 100644
--- a/man2/epoll_ctl.2
+++ b/man2/epoll_ctl.2
@@ -224,6 +224,13 @@ or the requested operation
 .I op
 is not supported by this interface.
 .TP
+.B ELOOP
+.I fd
+refers to an epoll instance and this
+.B EPOLL_CTL_ADD
+operation would result in a circular loop of epoll instances
+monitoring one another.
+.TP
 .B ENOENT
 .I op
 was