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SubjectRe: [PATCH 000 of 2] Invalidate_inode_pages2 changes.
On Monday August 28, akpm@osdl.org wrote:
> On Tue, 29 Aug 2006 11:30:15 +1000
> NeilBrown <neilb@suse.de> wrote:
>
> > I'm picking up on a conversation that was started in late March
> > this year, and which didn't get anywhere much.
> > See
> > http://lkml.org/lkml/2006/3/31/93
> > and following.
>
> Nick's "possible lock_page fix for Andrea's nopage vs invalidate race?"
> patch (linux-mm) should fix this?
>
> If filemap_nopage() does lock_page(), invalidate_inode_pages2_range() is solid?

UHmm.... yes. In that case we can remove lots of stuff from
invalidate_inode_pages2_range as we can be sure the page won't be
dirty or in writeback so invalidate_complete_page will be certain to
succeed.

So if that goes ahead, these become moot. But until it does, these
would be nice to have :-)

Also, the patch at
http://marc.theaimsgroup.com/?l=linux-mm&m=115443228617576&w=2
appears not to set
+ .vm_flags = VM_CAN_INVLD,
for nfs_fs_vm_operations, but maybe they are a later addition to
nfs...

Thinks: should I subscribe to linux-mm... only about 100 messages per
week.... maybe :-)

Thanks,
NeilBrown
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