add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/powerpc/kernel/rtas_flash.c
..
..
@@ -710,9 +710,9 @@
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 	if (!rtas_validate_flash_data.buf)
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 		return -ENOMEM;
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-	flash_block_cache = kmem_cache_create("rtas_flash_cache",
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-					      RTAS_BLK_SIZE, RTAS_BLK_SIZE, 0,
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-					      NULL);
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+	flash_block_cache = kmem_cache_create_usercopy("rtas_flash_cache",
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+						       RTAS_BLK_SIZE, RTAS_BLK_SIZE,
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+						       0, 0, RTAS_BLK_SIZE, NULL);
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 	if (!flash_block_cache) {
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 		printk(KERN_ERR "%s: failed to create block cache\n",
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 				__func__);