linux-kernel - Re: [PATCH] SCHED: remove proliferation of wait_on

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Message-ID: <20140501074257.GK11096@twins.programming.kicks-ass.net>
Date:	Thu, 1 May 2014 09:42:57 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	NeilBrown <neilb@...e.de>
Cc:	Oleg Nesterov <oleg@...hat.com>,
	David Howells <dhowells@...hat.com>,
	Steven Whitehouse <swhiteho@...hat.com>, dm-devel@...hat.com,
	Chris Mason <clm@...com>, Josef Bacik <jbacik@...com>,
	Steve French <sfrench@...ba.org>,
	Theodore Ts'o <tytso@....edu>,
	Trond Myklebust <trond.myklebust@...marydata.com>,
	Ingo Molnar <mingo@...hat.com>,
	Roland McGrath <roland@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-nfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH] SCHED: remove proliferation of wait_on_bit action
 functions.

On Thu, May 01, 2014 at 12:37:38PM +1000, NeilBrown wrote:
> +static inline int
> +wait_on_bit(void *word, int bit, unsigned mode)
> +{
> +	if (!test_bit(bit, word))
> +		return 0;
> +	return out_of_line_wait_on_bit(word, bit,
> +				       bit_wait,
> +				       mode & 65535);
> +}

Still puzzled by the 16 bit mask there ;-)
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