linux-kernel - Re: [PATCH 2/2] AFS: Implement shared-writable mmap

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Message-Id: <20070515144007.f87d9be5.akpm@linux-foundation.org>
Date:	Tue, 15 May 2007 14:40:07 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	David Howells <dhowells@...hat.com>
Cc:	nickpiggin@...oo.com.au, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	Nick Piggin <nickpiggin@...oo.com.au>,
	Hugh Dickins <hugh@...itas.com>
Subject: Re: [PATCH 2/2] AFS: Implement shared-writable mmap

On Tue, 15 May 2007 16:52:31 +0100
David Howells <dhowells@...hat.com> wrote:

> Implement shared-writable mmap for AFS.

This blows up in -mm:

fs/afs/file.c:59: error: 'filemap_nopage' undeclared here (not in a function)
fs/afs/file.c:60: error: unknown field 'populate' specified in initializer
fs/afs/file.c:60: error: 'filemap_populate' undeclared here (not in a function)

because Nick went and renamed half the VM and deleted the other half.

I need to work out what to do with

mm-fix-fault-vs-invalidate-race-for-linear-mappings.patch
mm-merge-populate-and-nopage-into-fault-fixes-nonlinear.patch
mm-merge-populate-and-nopage-into-fault-fixes-nonlinear-doc-fix.patch
mm-merge-populate-and-nopage-into-fault-fixes-nonlinear-fix.patch
mm-merge-nopfn-into-fault.patch
convert-hugetlbfs-to-use-vm_ops-fault.patch
mm-remove-legacy-cruft.patch
mm-debug-check-for-the-fault-vs-invalidate-race.patch
mm-fix-clear_page_dirty_for_io-vs-fault-race.patch

Probably merge them, I guess.  Hugh had concerns, I think over small
additional overhead from the lock_page()?

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