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Subject: Re: [RFC patch 0/5] futex: Allow lockless empty check of hashbucket
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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
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        Andrew Morton <akpm@linux-foundation.org>
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On Sun, 2013-12-01 at 10:58 -0800, Linus Torvalds wrote:

> Of course, I have no idea if people are properly using the private
> futexes. glibc _should_ use them, but who the heck knows..

Last time I checked, private futexes were used when appropriate.

"strace -e futex" mainly show _PRIVATE uses.

Example on "strace -f -e futex host www.google.com"