> Detect page types in kho_preserve_pages() by peeking into the refcount > of the second page in each block of order > 0. If the second page has > a non-zero reference count, it indicates that the block has been split. > Otherwise, treated it as a contiguous, unsplit block. > > Since the page type is now part of the radix tree key, update the > unpreserve path to use the same detection logic to ensure it can > correctly locate and delete existing entries. > > Signed-off-by: Pranjal Shrivastava <[email protected]> > > diff --git a/kernel/liveupdate/kexec_handover.c > b/kernel/liveupdate/kexec_handover.c > index f829ffdd00f45..d6e81f72fe5de 100644 > --- a/kernel/liveupdate/kexec_handover.c > +++ b/kernel/liveupdate/kexec_handover.c > @@ -918,15 +918,29 @@ static unsigned int __kho_preserve_pages_order(unsigned > long start_pfn, > return order; > } > > +static bool kho_is_page_split(unsigned long pfn, unsigned int order)
You can return enum kho_page_type here directly (and rename the function accordingly). -- Sincerely yours, Mike.
