Christoph Hellwig wrote:
On Mon, Mar 19, 2007 at 10:30:08AM +1100, David Chinner wrote:
Generic page_mkwrite functionality.
Filesystems that make use of the VM ->page_mkwrite() callout will generally use
the same core code to implement it. There are several tricky truncate-related
issues that we need to deal with here as we cannot take the i_mutex as we
normally would for these paths. These issues are not documented anywhere yet
so block_page_mkwrite() seems like the best place to start.
This will need some updates when ->fault replaces ->page_mkwrite.
Nich, what's the plan for merging ->fault?
I've got the patches in -mm now. I hope they will get merged when the
the next window opens.
I didn't submit the ->page_mkwrite conversion yet, because I didn't
have any callers to look at. It is is slightly less trivial than for
nopage and nopfn, so having David's block_page_mkwrite is helpful.
--
SUSE Labs, Novell Inc.
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