git: 86da56e65f8c - stable/15 - LinuxKPI: page.h: use atop() and ptoa() instead of PAGE_SHIFT

The branch stable/15 has been updated by bz:

URL: https://cgit.FreeBSD.org/src/commit/?id=86da56e65f8cdfdc7a2fb503a37a18765564b891

commit 86da56e65f8cdfdc7a2fb503a37a18765564b891
Author:     Bjoern A. Zeeb <bz@FreeBSD.org>
AuthorDate: 2026-07-17 13:09:01 +0000
Commit:     Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2026-07-26 16:49:02 +0000

    LinuxKPI: page.h: use atop() and ptoa() instead of PAGE_SHIFT
    
    With upcoming changes to 'struct page' this will make the lines
    easier to read by using the predefined macros from param.h.
    
    Sponsored by:   The FreeBSD Foundation
    Reviewed by:    markj, kib
    Differential Revision: https://reviews.freebsd.org/D58298
    
    (cherry picked from commit f45506c6a6f4742cd5129d636902b61045c4754b)
---
 sys/compat/linuxkpi/common/include/linux/page.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/compat/linuxkpi/common/include/linux/page.h b/sys/compat/linuxkpi/common/include/linux/page.h
index a8e266af95fd..eb0083f5fecc 100644
--- a/sys/compat/linuxkpi/common/include/linux/page.h
+++ b/sys/compat/linuxkpi/common/include/linux/page.h
@@ -74,8 +74,8 @@ pgprot2cachemode(pgprot_t prot)
 
 #define	page_to_virt(page)	linux_page_address(page)
 #define	virt_to_page(x)		PHYS_TO_VM_PAGE(vtophys(x))
-#define	page_to_pfn(pp)		(VM_PAGE_TO_PHYS(pp) >> PAGE_SHIFT)
-#define	pfn_to_page(pfn)	(PHYS_TO_VM_PAGE((pfn) << PAGE_SHIFT))
+#define	page_to_pfn(pp)		atop(VM_PAGE_TO_PHYS(pp))
+#define	pfn_to_page(pfn)	PHYS_TO_VM_PAGE(ptoa(pfn))
 #define	nth_page(page,n)	pfn_to_page(page_to_pfn(page) + (n))
 #define	page_to_phys(page)	VM_PAGE_TO_PHYS(page)