| From: David Hildenbrand <david@redhat.com> |
| Subject: scsi: sg: drop nth_page() usage within SG entry |
| Date: Mon, 1 Sep 2025 17:03:52 +0200 |
| |
| 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> |
| --- |
| |
| drivers/scsi/sg.c | 3 +-- |
| 1 file changed, 1 insertion(+), 2 deletions(-) |
| |
| --- a/drivers/scsi/sg.c~scsi-sg-drop-nth_page-usage-within-sg-entry |
| +++ a/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 */ |
| _ |
