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ANDROID: Add vendor hook for cma adjusting

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ALLOC_CMA is hard binded to GFP_CMA now, introduce a vh for adjusting.

Bug: 291181967
Bug: 374857413
Test: build pass
Change-Id: Idd4c1a2b5971920881b8f42fdc9358918ef2a946
Signed-off-by: zhaoyang.huang <zhaoyang.huang@unisoc.com>
(cherry picked from commit 79353327f1a51082c2308733ed38b4235d5956e0)
This commit is contained in:
zhaoyang.huang
2023-07-18 14:29:51 +08:00
committed by Suren Baghdasaryan
parent e02772c76d
commit a03d1670d2
3 changed files with 15 additions and 0 deletions
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2
drivers/android/vendor_hooks.c
View File

@@ -344,6 +344,8 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_ctl_dirty_rate);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_check_hibernation_swap);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_save_cpu_resume);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_save_hib_resume_bdev);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alloc_flags_cma_adjust);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rmqueue_cma_fallback);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_encrypt_page);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_init_aes_encrypt);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_skip_swap_map_write);

6
include/trace/hooks/mm.h
View File

@@ -282,6 +282,12 @@ DECLARE_HOOK(android_vh_filemap_map_pages,
TP_PROTO(struct file *file, pgoff_t first_pgoff,
pgoff_t last_pgoff, vm_fault_t ret),
TP_ARGS(file, first_pgoff, last_pgoff, ret));
DECLARE_HOOK(android_vh_alloc_flags_cma_adjust,
TP_PROTO(gfp_t gfp_mask, unsigned int *alloc_flags),
TP_ARGS(gfp_mask, alloc_flags));
DECLARE_HOOK(android_vh_rmqueue_cma_fallback,
TP_PROTO(struct zone *zone, unsigned int order, struct page **page),
TP_ARGS(zone, order, page));
#endif /* _TRACE_HOOK_MM_H */
/* This part must be outside protection */

7
mm/page_alloc.c
View File

@@ -3165,6 +3165,12 @@ __rmqueue(struct zone *zone, unsigned int order, int migratetype,
retry:
page = __rmqueue_smallest(zone, order, migratetype);
/*
* let normal GFP_MOVABLE has chance to try MIGRATE_CMA
*/
if (unlikely(!page) && (migratetype == MIGRATE_MOVABLE))
trace_android_vh_rmqueue_cma_fallback(zone, order, &page);
if (unlikely(!page) && __rmqueue_fallback(zone, order, migratetype,
alloc_flags))
goto retry;
@@ -4295,6 +4301,7 @@ static inline unsigned int gfp_to_alloc_flags_cma(gfp_t gfp_mask,
#ifdef CONFIG_CMA
if (gfp_migratetype(gfp_mask) == MIGRATE_MOVABLE && gfp_mask & __GFP_CMA)
alloc_flags |= ALLOC_CMA;
trace_android_vh_alloc_flags_cma_adjust(gfp_mask, &alloc_flags);
#endif
return alloc_flags;
}