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| author | Liam Howlett <liam.howlett@oracle.com> | 2022-06-15 17:40:58 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-09-26 19:46:27 -0700 |
| commit | 66071896cdfe096fcd4aef55a5efbd5216fa15de (patch) | |
| tree | 363a7790ce6dfdb99cc47524aac98e4f95bf3759 /mm/mlock.c | |
| parent | c154124fe925a451e471233aa7d1ab9a91f0a5ad (diff) | |
| download | lwn-66071896cdfe096fcd4aef55a5efbd5216fa15de.tar.gz lwn-66071896cdfe096fcd4aef55a5efbd5216fa15de.zip | |
mm/mlock: drop dead code in count_mm_mlocked_page_nr()
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().
Link: https://lkml.kernel.org/r/20220615174050.738523-1-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Suggested-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/mlock.c')
| -rw-r--r-- | mm/mlock.c | 4 |
1 files changed, 1 insertions, 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) |