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Date: Thu, 31 May 2007 11:32:02 +0200 From: Ingo Molnar <mingo@...e.hu> To: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Davide Libenzi <davidel@...ilserver.org>, Ulrich Drepper <drepper@...hat.com>, Jeff Garzik <jeff@...zik.org>, Zach Brown <zach.brown@...cle.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Arjan van de Ven <arjan@...radead.org>, Christoph Hellwig <hch@...radead.org>, Andrew Morton <akpm@....com.au>, Alan Cox <alan@...rguk.ukuu.org.uk>, Evgeniy Polyakov <johnpol@....mipt.ru>, "David S. Miller" <davem@...emloft.net>, Suparna Bhattacharya <suparna@...ibm.com>, Jens Axboe <jens.axboe@...cle.com>, Thomas Gleixner <tglx@...utronix.de> Subject: Re: Syslets, Threadlets, generic AIO support, v6 * Ingo Molnar <mingo@...e.hu> wrote: > (i definitely remember having written code for that too, but i cannot > find that in the archives. hm.) In theory we could avoid _all_ > fd-bitmap overhead as well and use a per-process list/pool of struct > file buffers plus a maximum-fd field as the 'non-linear fd allocator' > (at the price of only deallocating them at process exit time). btw., this also allows mostly-lockless fd allocation, which would probably benefit threaded apps too. (we can just recycle it from a per-CPU list of cached fds for that process) Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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