Re: [PATCH+comment] fix tmpfs BUG and AOP_WRITEPAGE_ACTIVATE

From: H. Peter Anvin
Date: Thu Oct 25 2007 - 16:53:39 EST


Erez Zadok wrote:
In message <Pine.LNX.4.64.0710250705510.9811@xxxxxxxxxxxxxxxxxxxxxx>, Hugh Dickins writes:
On Thu, 25 Oct 2007, Pekka Enberg wrote:

With unionfs also fixed, we don't know of an absolute need for this
patch (and so, on that basis, the !wbc->for_reclaim case could indeed
be removed very soon); but as I see it, the unionfs case has shown
that it's time to future-proof this code against whatever stacking
filesystems come along. Hence I didn't mention the names of such
filesystems in the source comment.

I think "future proof" for other stackable f/s is a good idea, esp. since
many of the stackable f/s we've developed and distributed over the past 10
years are in some use in various places: gzipfs, avfs, tracefs, replayfs,
ncryptfs, versionfs, wrapfs, i3fs, and more (see www.filesystems.org).


A number of filesystems want partial or full stackability, so getting rid of lack-of-stackability whereever it may be is highly valuable.

-hpa

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/