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| author | Hugh Dickins <hughd@google.com> | 2023-06-20 08:50:00 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-06-24 01:59:27 +0200 |
| commit | 3fda49e89f1702df6bb6a2470076b1a7bf3a29de (patch) | |
| tree | a4810807eef58d42d91fdfea0a785babec876798 /mm | |
| parent | mm: pass nid to reserve_bootmem_region() (diff) | |
| download | linux-3fda49e89f1702df6bb6a2470076b1a7bf3a29de.tar.xz linux-3fda49e89f1702df6bb6a2470076b1a7bf3a29de.zip | |
mm/swapfile: delete outdated pte_offset_map() comment
Delete a triply out-of-date comment from add_swap_count_continuation():
1. vmalloc_to_page() changed from pte_offset_map() to pte_offset_kernel()
2. pte_offset_map() changed from using kmap_atomic() to kmap_local_page()
3. kmap_atomic() changed from using fixed FIX_KMAP addresses in 2.6.37.
Link: https://lkml.kernel.org/r/9022632b-ba9d-8cb0-c25-4be9786481b5@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/swapfile.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index a6945c2e0d03..92ed7cba2268 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -3456,11 +3456,6 @@ int add_swap_count_continuation(swp_entry_t entry, gfp_t gfp_mask) goto out; } - /* - * We are fortunate that although vmalloc_to_page uses pte_offset_map, - * no architecture is using highmem pages for kernel page tables: so it - * will not corrupt the GFP_ATOMIC caller's atomic page table kmaps. - */ head = vmalloc_to_page(si->swap_map + offset); offset &= ~PAGE_MASK; |