| Message ID | 20190503190500.GA30589@avx2 (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | swap: ifdef struct vm_area_struct::swap_readahead_info | expand |
On Fri 03-05-19 22:05:00, Alexey Dobriyan wrote: > The field is only used in swap code. > > Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Michal Hocko <mhocko@suse.com> > --- > > include/linux/mm_types.h | 2 ++ > 1 file changed, 2 insertions(+) > > --- a/include/linux/mm_types.h > +++ b/include/linux/mm_types.h > @@ -326,7 +326,9 @@ struct vm_area_struct { > struct file * vm_file; /* File we map to (can be NULL). */ > void * vm_private_data; /* was vm_pte (shared mem) */ > > +#ifdef CONFIG_SWAP > atomic_long_t swap_readahead_info; > +#endif > #ifndef CONFIG_MMU > struct vm_region *vm_region; /* NOMMU mapping region */ > #endif
--- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -326,7 +326,9 @@ struct vm_area_struct { struct file * vm_file; /* File we map to (can be NULL). */ void * vm_private_data; /* was vm_pte (shared mem) */ +#ifdef CONFIG_SWAP atomic_long_t swap_readahead_info; +#endif #ifndef CONFIG_MMU struct vm_region *vm_region; /* NOMMU mapping region */ #endif
The field is only used in swap code. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> --- include/linux/mm_types.h | 2 ++ 1 file changed, 2 insertions(+)