RK3399 Android7.1修改设置和第三方应用读到的内存总容量大小

宋耀
2023-12-01

比如修改为4GB整:

diff --git a/kernel/mm/page_alloc.c b/kernel/mm/page_alloc.c
index d17ff05..71dd62c 100644
--- a/kernel/mm/page_alloc.c
+++ b/kernel/mm/page_alloc.c
@@ -3613,7 +3613,7 @@ static inline void show_node(struct zone *zone)
 
 void si_meminfo(struct sysinfo *val)
 {
-       val->totalram = totalram_pages;
+       val->totalram = 1048576;//totalram_pages;
        val->sharedram = global_page_state(NR_SHMEM);
        val->freeram = global_page_state(NR_FREE_PAGES);
        val->bufferram = nr_blockdev_pages();

以上修改后内存总容量显示4GB(或4096MB)。

val->freeram为剩余可用内存。

单位是一页(page),大小4k=4096 byte

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