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ANDROID: GKI: mm.h: add Android ABI padding to a structure

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Try to mitigate potential future driver core api changes by adding a
padding to struct vm_operations_struct.

Based on a change made to the RHEL/CENTOS 8 kernel.

Bug: 151154716
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I78f84148ef4d3524bd6c5b78e53e06503a4ac3ae
This commit is contained in:
Greg Kroah-Hartman
2020-05-02 09:41:26 +02:00
parent f21777c57f
commit 8faaa07702
1 changed files with 6 additions and 0 deletions
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6
include/linux/mm.h
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@@ -32,6 +32,7 @@
#include <linux/sched.h> #include <linux/sched.h>
#include <linux/pgtable.h> #include <linux/pgtable.h>
#include <linux/kasan.h> #include <linux/kasan.h>
#include <linux/android_kabi.h>
struct mempolicy; struct mempolicy;
struct anon_vma; struct anon_vma;
@@ -638,6 +639,11 @@ struct vm_operations_struct {
*/ */
struct page *(*find_special_page)(struct vm_area_struct *vma, struct page *(*find_special_page)(struct vm_area_struct *vma,
unsigned long addr); unsigned long addr);
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
ANDROID_KABI_RESERVE(3);
ANDROID_KABI_RESERVE(4);
}; };
static inline void INIT_VMA(struct vm_area_struct *vma) static inline void INIT_VMA(struct vm_area_struct *vma)