Re: [PATCH 1/1] arm: print alloc free paths for address in registers
From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
Date: 2021-02-24 15:06:34
Also in:
linux-mm, lkml
On Wed, Feb 24, 2021 at 06:07:34PM +0530, Maninder Singh wrote:
+bool slab_page_object(unsigned long address, void **object, struct kmem_cache **cache)
+{
+ void *addr = (void *)address;
+ struct page *page;
+
+ if ((addr >= (void *)PAGE_OFFSET) &&
+ (addr < high_memory)) {
+ page = virt_to_head_page(addr);This check is not sufficient. There can be holes in the page array. You need to use virt_addr_valid() to validate "addr". -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last! _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel