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ANDROID: GKI: mm: Add Android ABI padding to MGLRU structures

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Try to handle any future changes in MGLRU by adding kabi padding.

This change keeps these struct sizes within the same allocation order:
lru_gen_page: 960 -> 976 bytes
lru_gen_mm_state: 120 -> 128 bytes
lru_gen_mm_walk: 152 -> 168 bytes
lru_gen_memcg: 160 -> 176 bytes
lruvec: 1224 -> 1264 bytes

Bug: 151154716
Change-Id: Ibc2fd8bc70e555194c5be7131a2b7ab4b579daa9
Signed-off-by: T.J. Mercier <tjmercier@google.com>
This commit is contained in:
T.J. Mercier
2023-05-31 21:29:58 +00:00
committed by Carlos Llamas
parent 027542cf42
commit 9c4ae1109f
1 changed files with 13 additions and 0 deletions
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13
include/linux/mmzone.h
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@@ -442,6 +442,9 @@ struct lru_gen_page {
/* per-node lru_gen_page list for global reclaim */
struct hlist_nulls_node list;
#endif
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
};
enum {
@@ -468,6 +471,8 @@ struct lru_gen_mm_state {
unsigned long *filters[NR_BLOOM_FILTERS];
/* the mm stats for debugging */
unsigned long stats[NR_HIST_GENS][NR_MM_STATS];
ANDROID_KABI_RESERVE(1);
};
struct lru_gen_mm_walk {
@@ -485,6 +490,9 @@ struct lru_gen_mm_walk {
int batched;
bool can_swap;
bool force_scan;
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
};
void lru_gen_init_lruvec(struct lruvec *lruvec);
@@ -542,6 +550,9 @@ struct lru_gen_memcg {
struct hlist_nulls_head fifo[MEMCG_NR_GENS][MEMCG_NR_BINS];
/* protects the above */
spinlock_t lock;
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
};
void lru_gen_init_pgdat(struct pglist_data *pgdat);
@@ -637,6 +648,8 @@ struct lruvec {
struct pglist_data *pgdat;
#endif
ANDROID_VENDOR_DATA(1);
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
};
/* Isolate unmapped pages */