On Thu 16-08-18 17:17:37, Li RongQing wrote: > The new helper returns address mapping page, which has several users > in individual subsystem, like mem_to_page in xfs_buf.c and pgv_to_page > in af_packet.c, after this, they can be unified
Please add users along with the new helper. > > Signed-off-by: Zhang Yu <[email protected]> > Signed-off-by: Li RongQing <[email protected]> > --- > include/linux/mm.h | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index 68a5121694ef..bb34a3c71df5 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -599,6 +599,14 @@ static inline void *kvcalloc(size_t n, size_t size, > gfp_t flags) > return kvmalloc_array(n, size, flags | __GFP_ZERO); > } > > +static inline struct page *kvvirt_to_page(const void *addr) > +{ > + if (!is_vmalloc_addr(addr)) > + return virt_to_page(addr); > + else > + return vmalloc_to_page(addr); > +} > + > extern void kvfree(const void *addr); > > static inline atomic_t *compound_mapcount_ptr(struct page *page) > -- > 2.16.2 > -- Michal Hocko SUSE Labs
