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| author | Kirill A. Shutemov <[email protected]> | 2017-11-27 06:21:25 +0300 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2017-11-27 12:26:29 -0800 |
| commit | a8f97366452ed491d13cf1e44241bc0b5740b1f0 (patch) | |
| tree | 088b53c38a80b46fb6d46c49dc521dfa54e3a87b /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323 (diff) | |
mm, thp: Do not make page table dirty unconditionally in touch_p[mu]d()
Currently, we unconditionally make page table dirty in touch_pmd().
It may result in false-positive can_follow_write_pmd().
We may avoid the situation, if we would only make the page table entry
dirty if caller asks for write access -- FOLL_WRITE.
The patch also changes touch_pud() in the same way.
Signed-off-by: Kirill A. Shutemov <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Hugh Dickins <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions