[Cluster-devel] [PATCH 5/6] gfs2: Support ludicrously large folios in gfs2_trans_add_databufs()
Andreas Gruenbacher
agruenba at redhat.com
Sat Jun 3 09:46:51 UTC 2023
On Tue, May 23, 2023 at 3:37 PM Matthew Wilcox <willy at infradead.org> wrote:
> On Tue, May 23, 2023 at 02:46:07PM +0200, Andreas Gruenbacher wrote:
> > > void gfs2_trans_add_databufs(struct gfs2_inode *ip, struct folio *folio,
> > > - unsigned int from, unsigned int len)
> > > + size_t from, size_t len)
> > > {
> > > struct buffer_head *head = folio_buffers(folio);
> > > unsigned int bsize = head->b_size;
> >
> > This only makes sense if the to, start, and end variables in
> > gfs2_trans_add_databufs() are changed from unsigned int to size_t as
> > well.
>
> The history of this patch is that I started doing conversions from page
> -> folio in gfs2, then you came out with a very similar series. This
> patch is the remainder after rebasing my patches on yours. So we can
> either drop this patch or just apply it. I wasn't making a concerted
> effort to make gfs2 support 4GB+ sized folios, it's just part of the
> conversion that I do.
Right. What do we do with these patches now, though? We probably don't
want to put them in the gfs2 tree given the buffer.c changes. Shall I
post a revised version? Will you?
> > > extern void gfs2_trans_add_databufs(struct gfs2_inode *ip, struct folio *folio,
> > > - unsigned int from, unsigned int len);
> > > + size_t from, size_t len);
Thanks,
Andreas
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