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include/linux/mm_types.h: ifdef struct vm_area_struct::swap_readahead_info

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The field is only used in swap code.

Link: http://lkml.kernel.org/r/20190503190500.GA30589@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexey Dobriyan 2019-07-11 20:54:43 -07:00 committed by Linus Torvalds
parent 442a5a9a92
commit 219f8a2e25
1 changed files with 2 additions and 0 deletions
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include/linux/mm_types.h
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@ -329,7 +329,9 @@ 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