Date: 13 Oct 2001 16:55:55 +0200 From: Dag-Erling Smorgrav <des@ofug.org> To: Matt Dillon <dillon@earth.backplane.com> Cc: Mike Silbersack <silby@silby.com>, <cvs-committers@FreeBSD.ORG>, <cvs-all@FreeBSD.ORG> Subject: Re: cvs commit: src/sys/vm vnode_pager.c Message-ID: <xzpzo6vh9ms.fsf@flood.ping.uio.no> In-Reply-To: <200110130005.f9D05Fb37190@earth.backplane.com> References: <20011012145142.L29945-100000@achilles.silby.com> <200110122026.f9CKQMS35969@earth.backplane.com> <200110130005.f9D05Fb37190@earth.backplane.com>
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Matt Dillon <dillon@earth.backplane.com> writes: > Hmm. in re-reading this I think I have to clarify something... > when I said 'before the dirty buffer is flushed' I meant that if you > write() a small file and then mmap/access it before the buf_daemon > gets around to flushing the buffer that was diritied by the write, then > the mmap/access will put the page into the weird state. The same thing > can occur if you mmap() a file shared+RW and modify the fragment via > the mmap. Hmm, cvsup doesn't seem to use mmap for I/O. What do you mean by "access" in this context? DES -- Dag-Erling Smorgrav - des@ofug.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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