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| author |   Miaohe Lin <linmiaohe@huawei.com> | 2021-05-04 18:37:39 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-05 11:27:24 -0700 |
| commit | 3e96b6a2e9ad929a3230a22f4d64a74671a0720b (patch) | |
| tree | 855d56c528bc6166cef1dc7eb08997d72db4753a /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | ksm: remove redundant VM_BUG_ON_PAGE() on stable_tree_search() (diff) | |
| download | linux-dev-3e96b6a2e9ad929a3230a22f4d64a74671a0720b.tar.xz linux-dev-3e96b6a2e9ad929a3230a22f4d64a74671a0720b.zip | |
ksm: use GET_KSM_PAGE_NOLOCK to get ksm page in remove_rmap_item_from_tree()
It's unnecessary to lock the page when get ksm page if we're going to
remove the rmap item as page migration is irrelevant in this case. Use
GET_KSM_PAGE_NOLOCK instead to save some page lock cycles.
Link: https://lkml.kernel.org/r/20210330140228.45635-3-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions