Messages in this thread Patch in this message | | | From | Liam Howlett <> | Subject | [PATCH] mm/mlock: Drop dead code in count_mm_mlocked_page_nr() | Date | Wed, 15 Jun 2022 17:40:58 +0000 |
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The check for mm being null has never been needed since the only caller has always passed in current->mm. Remove the check from count_mm_mlocked_page_nr().
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Suggested-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> --- mm/mlock.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/mm/mlock.c b/mm/mlock.c index 43d19a1f28eb..7032f6dd0ce1 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -531,14 +531,12 @@ static unsigned long count_mm_mlocked_page_nr(struct mm_struct *mm, unsigned long end; VMA_ITERATOR(vmi, mm, start); - if (mm == NULL) - mm = current->mm; - /* Don't overflow past ULONG_MAX */ if (unlikely(ULONG_MAX - len < start)) end = ULONG_MAX; else end = start + len; + for_each_vma_range(vmi, vma, end) { if (vma->vm_flags & VM_LOCKED) { if (start > vma->vm_start) -- 2.35.1
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