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| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-09-16 10:22:57 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-10-04 00:03:30 +0300 |
| commit | c9b3637f8a5a4c869f78c26773c559669796212f (patch) | |
| tree | 01a2b72ecb5d1b86862447039171fb265c0507de /mm/page_alloc.c | |
| parent | def76fd549c513bb90278a8d6d0fe3ef3faa20a7 (diff) | |
| download | linux-c9b3637f8a5a4c869f78c26773c559669796212f.tar.xz | |
mm/page_alloc: fix obsolete comment in deferred_pfn_valid()
There are no architectures that can have holes in the memory map within a
pageblock since commit 859a85ddf90e ("mm: remove pfn_valid_within() and
CONFIG_HOLES_IN_ZONE"). Update the corresponding comment.
Link: https://lkml.kernel.org/r/20220916072257.9639-17-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 23f839e1d89e..66f7778732fb 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1929,11 +1929,7 @@ static inline void __init pgdat_init_report_one_done(void) /* * Returns true if page needs to be initialized or freed to buddy allocator. * - * First we check if pfn is valid on architectures where it is possible to have - * holes within pageblock_nr_pages. On systems where it is not possible, this - * function is optimized out. - * - * Then, we check if a current large page is valid by only checking the validity + * We check if a current large page is valid by only checking the validity * of the head pfn. */ static inline bool __init deferred_pfn_valid(unsigned long pfn) |