Messages in this thread |  | | Date | Thu, 27 Sep 2001 14:03:13 +0000 | From | Pavel Machek <> | Subject | Re: [PATCH] invalidate buffers on blkdev_put |
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Hi!
> > OK, not exactly nay, but... What you are trying to do is a workaround > > for problem that can be solved in somewhat saner way. Namely, we can > > make getblk() return buffres backed by pages from device page cache. > > I now have the patches for this, but I have to fix up fs/block_dev.c to > also honour the block size thing because otherwise the two are still not > in sync. > > I'll send out a test-patch later this evening, I hope. > > > It's solvable, but not obvious. It _does_ solve coherency problems between > > device page cache and buffer cache (thus killing update_buffers() and its > > ilk), but the last issue (new access path to page-private buffer_heads) > > may be rather nasty. > > It's certainly solvable, but it is also certainly very fraught with tons > of small details. I'll be very happy if people end up looking through the > patches _very_ critically (and don't even bother testing them if you don't > have a machine where you can lose a filesystem or two).
Time to rename 2.4.10 to 2.5.0? ;-) Pavel
-- Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt, details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.
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