diff options
| author | Yang Shi <yang@os.amperecomputing.com> | 2023-12-20 22:59:42 -0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-02-21 16:00:02 -0800 |
| commit | 05976a42b327d4f5a529a5e55cb8bfc2fa0bcca1 (patch) | |
| tree | b8f61ecdd3b01a63b4c00fa2a04b003ef7495bc7 /mm/mmap.c | |
| parent | a02b8bfe9a60ecb97bab7ba1a10a513bf78a7866 (diff) | |
| download | linux-05976a42b327d4f5a529a5e55cb8bfc2fa0bcca1.tar.gz | |
mm: mmap: no need to call khugepaged_enter_vma() for stack
We avoid allocating THP for temporary stack, even though
khugepaged_enter_vma() is called for stack VMAs, it actualy returns
false. So no need to call it in the first place at all.
Link: https://lkml.kernel.org/r/20231221065943.2803551-1-shy828301@gmail.com
Signed-off-by: Yang Shi <yang@os.amperecomputing.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index 282ed6d0914b07..66f534ec90a55e 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -2051,7 +2051,6 @@ static int expand_upwards(struct vm_area_struct *vma, unsigned long address) } } anon_vma_unlock_write(vma->anon_vma); - khugepaged_enter_vma(vma, vma->vm_flags); mas_destroy(&mas); validate_mm(mm); return error; @@ -2145,7 +2144,6 @@ int expand_downwards(struct vm_area_struct *vma, unsigned long address) } } anon_vma_unlock_write(vma->anon_vma); - khugepaged_enter_vma(vma, vma->vm_flags); mas_destroy(&mas); validate_mm(mm); return error; |