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| author | Sean Paul <seanpaul@chromium.org> | 2018-03-30 12:35:45 -0400 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2018-03-30 12:35:45 -0400 |
| commit | 83fd26c3f32afe38bb2ab8cc00e313ec5c2edbce (patch) | |
| tree | b2d2719c998bc2bcba99f2ecf2d164ee9b7ad75a /mm/khugepaged.c | |
| parent | 4165791d29f64e01860a064f3c649447dbac41c3 (diff) | |
| parent | 694f54f680f7fd8e9561928fbfc537d9afbc3d79 (diff) | |
| download | op-kernel-dev-83fd26c3f32afe38bb2ab8cc00e313ec5c2edbce.zip op-kernel-dev-83fd26c3f32afe38bb2ab8cc00e313ec5c2edbce.tar.gz | |
Merge airlied/drm-next into drm-misc-next
Backmerging to pick up a fix from drm-misc-next-fixes.
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'mm/khugepaged.c')
| -rw-r--r-- | mm/khugepaged.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/mm/khugepaged.c b/mm/khugepaged.c index b7e2268..e425682 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -530,7 +530,12 @@ static int __collapse_huge_page_isolate(struct vm_area_struct *vma, goto out; } - VM_BUG_ON_PAGE(PageCompound(page), page); + /* TODO: teach khugepaged to collapse THP mapped with pte */ + if (PageCompound(page)) { + result = SCAN_PAGE_COMPOUND; + goto out; + } + VM_BUG_ON_PAGE(!PageAnon(page), page); /* @@ -960,7 +965,9 @@ static void collapse_huge_page(struct mm_struct *mm, goto out_nolock; } - if (unlikely(mem_cgroup_try_charge(new_page, mm, gfp, &memcg, true))) { + /* Do not oom kill for khugepaged charges */ + if (unlikely(mem_cgroup_try_charge(new_page, mm, gfp | __GFP_NORETRY, + &memcg, true))) { result = SCAN_CGROUP_CHARGE_FAIL; goto out_nolock; } @@ -1319,7 +1326,9 @@ static void collapse_shmem(struct mm_struct *mm, goto out; } - if (unlikely(mem_cgroup_try_charge(new_page, mm, gfp, &memcg, true))) { + /* Do not oom kill for khugepaged charges */ + if (unlikely(mem_cgroup_try_charge(new_page, mm, gfp | __GFP_NORETRY, + &memcg, true))) { result = SCAN_CGROUP_CHARGE_FAIL; goto out; } |
