From: bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org
To: linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [Bug 14001] eventfd manpage missing EFD_SEMAPHORE flag
Date: Mon, 30 Aug 2010 05:29:54 GMT [thread overview]
Message-ID: <201008300529.o7U5TsgG013372@demeter1.kernel.org> (raw)
In-Reply-To: <bug-14001-11311-3bo0kxnWaOQUvHkbgXJLS5sdmw4N0Rt+2LY78lusg7I@public.gmane.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=14001
Michael Kerrisk <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
--- Comment #1 from Michael Kerrisk <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2010-08-30 05:29:50 ---
For man-pages-3.26, I added this text:
EFD_SEMAPHORE (since Linux 2.6.30)
Provide semaphore-like semantics for reads from
the new file descriptor. See below.
...
* If EFD_SEMAPHORE was not specified and the
eventfd counter has a nonzero value, then a
read(2) returns 8 bytes containing that value,
and the counter's value is reset to zero.
* If EFD_SEMAPHORE was specified and the eventfd
counter has a nonzero value, then a read(2)
returns 8 bytes containing the value 1, and the
counter's value is decremented by 1.
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next parent reply other threads:[~2010-08-30 5:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-14001-11311@https.bugzilla.kernel.org/>
[not found] ` <bug-14001-11311-3bo0kxnWaOQUvHkbgXJLS5sdmw4N0Rt+2LY78lusg7I@public.gmane.org/>
2010-08-30 5:29 ` bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r [this message]
2010-08-30 14:24 ` [Bug 14001] eventfd manpage missing EFD_SEMAPHORE flag bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r
2010-08-30 14:25 ` bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r
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