diff options
| author | Anshuman Khandual <[email protected]> | 2022-11-25 09:15:02 +0530 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2022-11-30 15:59:07 -0800 |
| commit | 7e25de77bc5ea56cc3ff618fc8f4ea1896a4dbb3 (patch) | |
| tree | 4f0fcd97e2f2415a99a19887d74798c6694bd738 /arch/s390/mm/gmap.c | |
| parent | 373dfda2bac1173971099dc76254a016646f62ab (diff) | |
s390/mm: use pmd_pgtable_page() helper in __gmap_segment_gaddr()
In __gmap_segment_gaddr() pmd level page table page is being extracted
from the pmd pointer, similar to pmd_pgtable_page() implementation. This
reduces some redundancy by directly using pmd_pgtable_page() instead,
though first making it available.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Anshuman Khandual <[email protected]>
Acked-by: Alexander Gordeev <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Heiko Carstens <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'arch/s390/mm/gmap.c')
| -rw-r--r-- | arch/s390/mm/gmap.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c index 02d15c8dc92e..8947451ae021 100644 --- a/arch/s390/mm/gmap.c +++ b/arch/s390/mm/gmap.c @@ -336,12 +336,11 @@ static int gmap_alloc_table(struct gmap *gmap, unsigned long *table, static unsigned long __gmap_segment_gaddr(unsigned long *entry) { struct page *page; - unsigned long offset, mask; + unsigned long offset; offset = (unsigned long) entry / sizeof(unsigned long); offset = (offset & (PTRS_PER_PMD - 1)) * PMD_SIZE; - mask = ~(PTRS_PER_PMD * sizeof(pmd_t) - 1); - page = virt_to_page((void *)((unsigned long) entry & mask)); + page = pmd_pgtable_page((pmd_t *) entry); return page->index + offset; } |