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Groups > linux.kernel > #1573598 > unrolled thread
| Started by | "Li, Liang Z" <liang.z.li@intel.com> |
|---|---|
| First post | 2017-02-04 05:40 +0100 |
| Last post | 2017-02-04 05:40 +0100 |
| Articles | 1 — 1 participant |
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RE: [PATCH v6 kernel 3/5] virtio-balloon: speed up inflate/deflate process "Li, Liang Z" <liang.z.li@intel.com> - 2017-02-04 05:40 +0100
| From | "Li, Liang Z" <liang.z.li@intel.com> |
|---|---|
| Date | 2017-02-04 05:40 +0100 |
| Subject | RE: [PATCH v6 kernel 3/5] virtio-balloon: speed up inflate/deflate process |
| Message-ID | <t70iJ-3E0-3@gated-at.bofh.it> |
> <snip>
>
> > +static void free_extended_page_bitmap(struct virtio_balloon *vb) {
> > + int i, bmap_count = vb->nr_page_bmap;
> > +
> > + for (i = 1; i < bmap_count; i++) {
> > + kfree(vb->page_bitmap[i]);
> > + vb->page_bitmap[i] = NULL;
> > + vb->nr_page_bmap--;
> > + }
> > +}
> > +
> > +static void kfree_page_bitmap(struct virtio_balloon *vb) {
> > + int i;
> > +
> > + for (i = 0; i < vb->nr_page_bmap; i++)
> > + kfree(vb->page_bitmap[i]);
> > +}
>
> It might be worth commenting that pair of functions to make it clear why
> they are so different; I guess the kfree_page_bitmap is used just before you
> free the structure above it so you don't need to keep the count/pointers
> updated?
>
Yes. I will add some comments for that. Thanks!
Liang
> Dave
> --
> Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
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