On Mon, Jan 25, 2016 at 12:35:13PM +0100, Jan Kara wrote:
>
> Reviewed-by: Jan Kara <jack@xxxxxxx>
>
Thanks!
> > ---
> > mm/filemap.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
> > 1 file changed, 49 insertions(+)
> >
> > diff --git a/mm/filemap.c b/mm/filemap.c
> > index aa38593d0cd5..235ee2b0b5da 100644
> > --- a/mm/filemap.c
> > +++ b/mm/filemap.c
> > @@ -1649,6 +1649,15 @@ static ssize_t do_generic_file_read(struct file *filp, loff_t *ppos,
> > index, last_index - index);
> > }
> > if (!PageUptodate(page)) {
> > + /*
> > + * See comment in do_read_cache_page on why
> > + * wait_on_page_locked is used to avoid unnecessarily
> > + * serialisations and why it's safe.
> > + */
> > + wait_on_page_locked(page);
> > + if (PageUptodate(page))
> > + goto page_ok;
> > +
>
> We want a wait_on_page_locked_killable() here to match the
> lock_page_killable() later in do_generic_file_read()?
>
Yes, I'll fix it in v2.
--
Mel Gorman
SUSE Labs
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