diff options
| -rw-r--r-- | kernel/liveupdate/kexec_handover.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/liveupdate/kexec_handover.c b/kernel/liveupdate/kexec_handover.c index ecc2058df1b6..f9b530606693 100644 --- a/kernel/liveupdate/kexec_handover.c +++ b/kernel/liveupdate/kexec_handover.c @@ -11,6 +11,7 @@ #include <linux/cleanup.h> #include <linux/cma.h> +#include <linux/kmemleak.h> #include <linux/count_zeros.h> #include <linux/kexec.h> #include <linux/kexec_handover.h> @@ -1369,6 +1370,15 @@ static __init int kho_init(void) unsigned long count = kho_scratch[i].size >> PAGE_SHIFT; unsigned long pfn; + /* + * When debug_pagealloc is enabled, __free_pages() clears the + * corresponding PRESENT bit in the kernel page table. + * Subsequent kmemleak scans of these pages cause the + * non-PRESENT page faults. + * Mark scratch areas with kmemleak_ignore_phys() to exclude + * them from kmemleak scanning. + */ + kmemleak_ignore_phys(kho_scratch[i].addr); for (pfn = base_pfn; pfn < base_pfn + count; pfn += pageblock_nr_pages) init_cma_reserved_pageblock(pfn_to_page(pfn)); |