The patch titled
Subject: include/linux/mm_types.h: ifdef struct vm_area_struct::swap_readahead_info
has been added to the -mm tree. Its filename is
swap-ifdef-struct-vm_area_struct-swap_readahead_info.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/swap-ifdef-struct-vm_area_struct-swap_readahead_info.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/swap-ifdef-struct-vm_area_struct-swap_readahead_info.patch
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------------------------------------------------------
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Subject: include/linux/mm_types.h: ifdef struct vm_area_struct::swap_readahead_info
The field is only used in swap code.
Link: http://lkml.kernel.org/r/20190503190500.GA30589@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm_types.h | 2 ++
1 file changed, 2 insertions(+)
--- a/include/linux/mm_types.h~swap-ifdef-struct-vm_area_struct-swap_readahead_info
+++ a/include/linux/mm_types.h
@@ -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
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
ramfs-support-o_tmpfile.patch
swap-ifdef-struct-vm_area_struct-swap_readahead_info.patch
tweak-list_poison2-for-better-code-generation-on-x86_64.patch
