From: Peter Xu <[email protected]> We used to do off-by-one fixup for pss->page when finished one host huge page transfer. That seems to be unnecesary at all. Drop it.
Cc: Keqian Zhu <[email protected]> Cc: Kunkun Jiang <[email protected]> Cc: Andrey Gruzdev <[email protected]> Signed-off-by: Peter Xu <[email protected]> Reviewed-by: Dr. David Alan Gilbert <[email protected]> Reviewed-by: Juan Quintela <[email protected]> Signed-off-by: Juan Quintela <[email protected]> --- migration/ram.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/migration/ram.c b/migration/ram.c index ca879c744f..58adcaf430 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -1617,7 +1617,7 @@ static int ram_save_release_protection(RAMState *rs, PageSearchStatus *pss, /* Check if page is from UFFD-managed region. */ if (pss->block->flags & RAM_UF_WRITEPROTECT) { void *page_address = pss->block->host + (start_page << TARGET_PAGE_BITS); - uint64_t run_length = (pss->page - start_page + 1) << TARGET_PAGE_BITS; + uint64_t run_length = (pss->page - start_page) << TARGET_PAGE_BITS; /* Flush async buffers before un-protect. */ qemu_fflush(rs->f); @@ -2230,7 +2230,7 @@ static int ram_save_host_page(RAMState *rs, PageSearchStatus *pss) offset_in_ramblock(pss->block, ((ram_addr_t)pss->page) << TARGET_PAGE_BITS)); /* The offset we leave with is the min boundary of host page and block */ - pss->page = MIN(pss->page, hostpage_boundary) - 1; + pss->page = MIN(pss->page, hostpage_boundary); res = ram_save_release_protection(rs, pss, start_page); return (res < 0 ? res : pages); -- 2.34.1
