Date: Fri, 6 Jun 1997 19:36:51 -0700 (PDT) From: Tom Samplonius <tom@sdf.com> To: Scott Lystig Fritchie <fritchie@MR.Net> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: One reason to mmap() block devices Message-ID: <Pine.BSF.3.95q.970606193553.11686C-100000@misery.sdf.com> In-Reply-To: <199706062157.QAA09644@data.mr.net>
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On Fri, 6 Jun 1997, Scott Lystig Fritchie wrote: > To follow-up to my earlier question about why only regular and > character files are mmap()able... > > ... I'm interested in mmap()ing a disk block device. I've been doing > some alternative INN development, bypassing the traditional filesystem > for article storage, using instead a few very large files as cyclic > buffers. Why not just mmap() the disk character device instead of the disk block device? The block device is nearly useless for everything except newfs. Tom
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