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| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-07-04 21:21:46 +0800 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-07-17 17:14:44 -0700 |
| commit | 7c38f1812d5bc118e29cb898e7104387a6cc0b76 (patch) | |
| tree | e71771a48dcb1ef63dead4178010fb0cf6fa0f54 /mm/huge_memory.c | |
| parent | 391145380f4b432403d8bdaf53ad7109104cb0df (diff) | |
| download | lwn-7c38f1812d5bc118e29cb898e7104387a6cc0b76.tar.gz lwn-7c38f1812d5bc118e29cb898e7104387a6cc0b76.zip | |
mm/huge_memory: use flush_pmd_tlb_range in move_huge_pmd
Patch series "A few cleanup patches for huge_memory", v3.
This series contains a few cleaup patches to remove duplicated codes,
add/use helper functions, fix some obsolete comments and so on. More
details can be found in the respective changelogs.
This patch (of 16):
Arches with special requirements for evicting THP backing TLB entries can
implement flush_pmd_tlb_range. Otherwise also, it can help optimize TLB
flush in THP regime. Using flush_pmd_tlb_range to take advantage of this
in move_huge_pmd.
Link: https://lkml.kernel.org/r/20220704132201.14611-1-linmiaohe@huawei.com
Link: https://lkml.kernel.org/r/20220704132201.14611-2-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Zach O'Keefe <zokeefe@google.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/huge_memory.c')
| -rw-r--r-- | mm/huge_memory.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 8e1b3d9f7ebf..627b98dfd51e 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1749,7 +1749,7 @@ bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr, pmd = move_soft_dirty_pmd(pmd); set_pmd_at(mm, new_addr, new_pmd, pmd); if (force_flush) - flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE); + flush_pmd_tlb_range(vma, old_addr, old_addr + PMD_SIZE); if (new_ptl != old_ptl) spin_unlock(new_ptl); spin_unlock(old_ptl); |