| From | "Aneesh Kumar K.V" <> | Subject | Re: [PATCH v2 08/10] mm, cma: clean-up cma allocation error path | Date | Sat, 14 Jun 2014 12:48:30 +0530 |
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Joonsoo Kim <iamjoonsoo.kim@lge.com> writes:
> We can remove one call sites for clear_cma_bitmap() if we first > call it before checking error number. > > Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
> > diff --git a/mm/cma.c b/mm/cma.c > index 1e1b017..01a0713 100644 > --- a/mm/cma.c > +++ b/mm/cma.c > @@ -282,11 +282,12 @@ struct page *cma_alloc(struct cma *cma, int count, unsigned int align) > if (ret == 0) { > page = pfn_to_page(pfn); > break; > - } else if (ret != -EBUSY) { > - clear_cma_bitmap(cma, pfn, count); > - break; > } > + > clear_cma_bitmap(cma, pfn, count); > + if (ret != -EBUSY) > + break; > + > pr_debug("%s(): memory range at %p is busy, retrying\n", > __func__, pfn_to_page(pfn)); > /* try again with a bit different memory target */ > -- > 1.7.9.5
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