scsi: sg: drop nth_page() usage within SG entry

It's no longer required to use nth_page() when iterating pages within a
single SG entry, so let's drop the nth_page() usage.

Link: https://lkml.kernel.org/r/20250901150359.867252-32-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Doug Gilbert <dgilbert@interlog.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 3c02a5f7b5f395610b3cf1c1d8d21ec55e9e6d2f..4c62c597c7be93518a47c0832717d39ddd3811f8 100644 (file)
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1235,8 +1235,7 @@ sg_vma_fault(struct vm_fault *vmf)
                len = vma->vm_end - sa;
                len = (len < length) ? len : length;
                if (offset < len) {
-                       struct page *page = nth_page(rsv_schp->pages[k],
-                                                    offset >> PAGE_SHIFT);
+                       struct page *page = rsv_schp->pages[k] + (offset >> PAGE_SHIFT);
                        get_page(page); /* increment page count */
                        vmf->page = page;
                        return 0; /* success */