ANDROID: GKI: quota.h: add Android ABI padding to some structures

Try to mitigate potential future driver core api changes by adding a
padding to struct quota_format_ops, struct dquot_operations, and struct
quotactl_ops.

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

Bug: 151154716
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia957d2f8d9b1a6939cddedc16a7481e9de1a8866

diff --git a/include/linux/quota.h b/include/linux/quota.h
index 27aab84..3088ac9 100644 (file)
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -316,6 +316,9 @@ struct quota_format_ops {
        int (*commit_dqblk)(struct dquot *dquot);       /* Write structure for one user */
        int (*release_dqblk)(struct dquot *dquot);      /* Called when last reference to dquot is being dropped */
        int (*get_next_id)(struct super_block *sb, struct kqid *qid);   /* Get next ID with existing structure in the quota file */
+
+       ANDROID_KABI_RESERVE(1);
+       ANDROID_KABI_RESERVE(2);
 };
 
 /* Operations working with dquots */
@@ -335,6 +338,9 @@ struct dquot_operations {
        int (*get_inode_usage) (struct inode *, qsize_t *);
        /* Get next ID with active quota structure */
        int (*get_next_id) (struct super_block *sb, struct kqid *qid);
+
+       ANDROID_KABI_RESERVE(1);
+       ANDROID_KABI_RESERVE(2);
 };
 
 struct path;
@@ -438,6 +444,9 @@ struct quotactl_ops {
        int (*set_dqblk)(struct super_block *, struct kqid, struct qc_dqblk *);
        int (*get_state)(struct super_block *, struct qc_state *);
        int (*rm_xquota)(struct super_block *, unsigned int);
+
+       ANDROID_KABI_RESERVE(1);
+       ANDROID_KABI_RESERVE(2);
 };
 
 struct quota_format_type {