On 12/6/2023 2:42 PM, Borislav Petkov wrote:
On Mon, Oct 16, 2023 at 08:27:45AM -0500, Michael Roth wrote:
+ spin_lock(&snp_leaked_pages_list_lock);
+ while (npages--) {
+ /*
+ * Reuse the page's buddy list for chaining into the leaked
+ * pages list. This page should not be on a free list currently
+ * and is also unsafe to be added to a free list.
+ */
+ list_add_tail(&page->buddy_list, &snp_leaked_pages_list);
+ sev_dump_rmpentry(pfn);
+ pfn++;
+ }
+ spin_unlock(&snp_leaked_pages_list_lock);
+ atomic_long_inc(&snp_nr_leaked_pages);
How is this supposed to count?
You're leaking @npages as the function's parameter but are incrementing
snp_nr_leaked_pages only once?
Just make it a bog-normal unsigned long and increment it inside the
locked section.
Or do at the beginning of the function:
atomic_long_add(npages, &snp_nr_leaked_pages);
Yes will fix accordingly by incrementing it inside the locked section.
Thanks,
Ashish