Re: [RFC][PATCH] problem of cont_prepare_write()

[OGAWA Hirofumi]

Andrew Morton <akpm@xxxxxxxx> writes:

> Perhaps cont_prepare_write() should look to see if the zerofilled page is
> outside the current i_size and if so, advance i_size to the end of the
> zerofilled page prior to releasing the page lock.

Yes, my first patch was it.

Umm... however, if ->i_size is updated before ->commit_write(),
doesn't it allow access to those pages, before all write() work is
successful?

Doesn't this cause strange behavior?
(especially a failure case of prepare_write())
-- 
OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
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