Re: [RFC PATCH v2 1/2] kho: Introduce a helper to init unsplit pages
Samiullah Khawaja <[email protected]>
| Newsgroups | org.infradead.lists.kexec,org.kernel.vger.linux-kernel,org.kvack.linux-mm |
|---|---|
| Message-ID | <[email protected]> |
On Mon, Jul 13, 2026 at 08:49:34PM +0000, Pranjal Shrivastava wrote: >The current KHO restoration logic assumes all multi-page blocks are >split into independent 4KB pages. Break out a helper to prepare for >supporting high-order non-compound pages. > >Extract kho_init_unsplit_pages() to handle the refcount pattern >where only the head page is refcounted. Use the helper for folio >restoration that requires a similar refcount logic. > >Signed-off-by: Pranjal Shrivastava <[email protected]> >--- > kernel/liveupdate/kexec_handover.c | 29 +++++++++++++++++++---------- > 1 file changed, 19 insertions(+), 10 deletions(-) > Reviewed-by: Samiullah Khawaja <[email protected]>