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Open Source and information security mailing list archives
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Date: Wed, 03 Jan 2007 01:47:36 +0100 From: Bodo Eggert <7eggert@....de> To: Dave Jones <davej@...hat.com>, mingo@...hat.com, Linux Kernel <linux-kernel@...r.kernel.org> Subject: Re: Shrink the held_lock struct by using bitfields. Dave Jones <davej@...hat.com> wrote: > Shrink the held_lock struct by using bitfields. > This shrinks task_struct on lockdep enabled kernels by 480 bytes. > * The following field is used to detect when we cross into an > * interrupt context: > */ > - int irq_context; [...] > + unsigned char irq_context:1; [...] Can these fields be set by concurrent processes, e.g.: CPU0 CPU1 load flags load flags flip bit store flip bit store ? -- Ich danke GMX dafür, die Verwendung meiner Adressen mittels per SPF verbreiteten Lügen zu sabotieren. http://david.woodhou.se/why-not-spf.html - 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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