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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-05-18 22:02:04 +0200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-05-18 22:02:04 +0200 |
| commit | 68886a1c7e75230cd4000a48e911af55ef5a26fc (patch) | |
| tree | e93042cf116fe86bf0e4f94315f8d5ba21b64662 /man7 | |
| parent | 8f29c47d8783de4aac9558b595ad33353605020f (diff) | |
| download | man-pages-68886a1c7e75230cd4000a48e911af55ef5a26fc.tar.gz | |
namespaces.7: Nowadays, file changes in /proc/PID/mounts are notified differently
Exceptional condition for select(), (E)POLLPRI for (e)poll
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Diffstat (limited to 'man7')
| -rw-r--r-- | man7/namespaces.7 | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/man7/namespaces.7 b/man7/namespaces.7 index a736711f75..3de8f5f462 100644 --- a/man7/namespaces.7 +++ b/man7/namespaces.7 @@ -297,11 +297,20 @@ Since kernel version 2.6.15, this file is pollable: after opening the file for reading, a change in this file (i.e., a filesystem mount or unmount) causes .BR select (2) -to mark the file descriptor as readable, and +to mark the file descriptor as having an exceptional condition, and .BR poll (2) and .BR epoll_wait (2) -mark the file as having an error condition. +mark the file as having a priority event +.RB ( POLLPRI ). +(Before Linux 2.6.30, +a change in this file was indicated by the file descriptor +being marked as readable for +.BR select (2), +and being marked as having an error condition for +.BR poll (2) +and +.BR epoll_wait (2).) The .IR /proc/[pid]/mountstats |