From: Matthew Wilcox <matthew@wil.cx>
To: Nick Piggin <npiggin@suse.de>
Cc: linux-arch@vger.kernel.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [rfc] lock bitops
Date: Tue, 8 May 2007 09:06:32 -0600 [thread overview]
Message-ID: <20070508150631.GC10562@parisc-linux.org> (raw)
In-Reply-To: <20070508113709.GA19294@wotan.suse.de>
On Tue, May 08, 2007 at 01:37:09PM +0200, Nick Piggin wrote:
> --
> Introduce test_and_set_bit_lock / clear_bit_unlock bitops with lock semantics.
> Add non-trivial for powerpc and ia64. Convert page lock, buffer lock,
> bit_spin_lock, tasklet locks to use the new locks.
The names are a bit clumsy. How about naming them after the effect,
rather than the implementation? It struck me that really these things
are bit mutexes -- you can sleep while holding the lock. How about
calling them bit_mutex_trylock() and bit_mutex_unlock()?
next prev parent reply other threads:[~2007-05-08 15:06 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-08 11:37 [rfc] lock bitops Nick Piggin
2007-05-08 11:40 ` [rfc] optimise unlock_page Nick Piggin
2007-05-08 11:40 ` Nick Piggin
2007-05-08 12:13 ` David Howells
2007-05-08 12:13 ` David Howells
2007-05-08 22:35 ` Nick Piggin
2007-05-08 22:35 ` Nick Piggin
2007-05-08 20:08 ` Hugh Dickins
2007-05-08 20:08 ` Hugh Dickins
2007-05-08 21:30 ` Benjamin Herrenschmidt
2007-05-08 21:30 ` Benjamin Herrenschmidt
2007-05-08 22:41 ` Nick Piggin
2007-05-08 22:41 ` Nick Piggin
2007-05-08 22:50 ` Nick Piggin
2007-05-08 22:50 ` Nick Piggin
2007-05-09 19:33 ` Hugh Dickins
2007-05-09 19:33 ` Hugh Dickins
2007-05-09 21:21 ` Benjamin Herrenschmidt
2007-05-09 21:21 ` Benjamin Herrenschmidt
2007-05-10 3:37 ` Nick Piggin
2007-05-10 3:37 ` Nick Piggin
2007-05-10 19:14 ` Hugh Dickins
2007-05-10 19:14 ` Hugh Dickins
2007-05-11 8:54 ` Nick Piggin
2007-05-11 8:54 ` Nick Piggin
2007-05-11 13:15 ` Hugh Dickins
2007-05-11 13:15 ` Hugh Dickins
2007-05-13 3:32 ` Nick Piggin
2007-05-13 3:32 ` Nick Piggin
2007-05-13 4:39 ` Hugh Dickins
2007-05-13 4:39 ` Hugh Dickins
2007-05-13 6:52 ` Nick Piggin
2007-05-13 6:52 ` Nick Piggin
2007-05-16 17:54 ` Hugh Dickins
2007-05-16 17:54 ` Hugh Dickins
2007-05-16 18:18 ` Nick Piggin
2007-05-16 18:18 ` Nick Piggin
2007-05-16 19:28 ` Hugh Dickins
2007-05-16 19:28 ` Hugh Dickins
2007-05-16 19:47 ` Linus Torvalds
2007-05-16 19:47 ` Linus Torvalds
2007-05-17 6:27 ` Nick Piggin
2007-05-17 6:27 ` Nick Piggin
2007-05-16 17:21 ` Hugh Dickins
2007-05-16 17:21 ` Hugh Dickins
2007-05-16 17:38 ` Nick Piggin
2007-05-16 17:38 ` Nick Piggin
2007-05-08 12:22 ` [rfc] lock bitops David Howells
2007-05-08 22:33 ` Nick Piggin
2007-05-09 6:18 ` Nick Piggin
2007-05-08 15:06 ` Matthew Wilcox [this message]
2007-05-08 21:23 ` Benjamin Herrenschmidt
2007-05-08 22:29 ` Nick Piggin
2007-05-08 22:40 ` Matthew Wilcox
2007-05-08 22:45 ` Nick Piggin
2007-05-09 12:08 ` Nikita Danilov
2007-05-09 12:20 ` Nick Piggin
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