Date: Mon, 20 Sep 1999 15:24:43 -0500 From: Alan Cox <alc@cs.rice.edu> To: Matt Dillon <dillon@freebsd.org> Cc: cvs-committers@freebsd.org, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/alpha/alpha vm_machdep.c src/sys/i386/i386 vm_machdep.c src/sys/kern sys_pipe.c src/sys/vm vm_extern.h Message-ID: <19990920152443.A992@nonpc.cs.rice.edu> In-Reply-To: <199909201908.MAA39566@freefall.freebsd.org>; from Matt Dillon on Mon, Sep 20, 1999 at 12:08:49PM -0700 References: <199909201908.MAA39566@freefall.freebsd.org>
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This reminds me of the following: vm_fault_quick should be rewritten so that the write case is atomic on SMPs, and not a read followed by a write. Currently, if another processor changed the location on which vm_fault_quick is being performed between the read and the write, its change would be lost. Alan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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