diff options
| author | Miaohe Lin <linmiaohe@huawei.com> | 2021-05-04 18:33:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-05 11:27:20 -0700 |
| commit | 588d01f918d42d2d453d8cd5af6bf2c2e1072a47 (patch) | |
| tree | 63077971b0e6a5166c1ea3b76f1c477d31298014 /net/lapb/lapb_timer.c | |
| parent | 0edf61e5ee5c334f33bb7bf95d1b470f01ae9fec (diff) | |
khugepaged: reuse the smp_wmb() inside __SetPageUptodate()
smp_wmb() is needed to avoid the copy_huge_page writes to become visible
after the set_pmd_at() write here. But we can reuse the smp_wmb() inside
__SetPageUptodate() to remove this redundant one.
Link: https://lkml.kernel.org/r/20210306032947.35921-3-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions