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| author | Mark Brown <broonie@kernel.org> | 2015-03-26 17:50:42 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-03-26 17:50:42 -0700 |
| commit | 1be38e041f8eaa935f370aa0f34dd7a2fe39b1d8 (patch) | |
| tree | 2d89734fc831593784bd411be03a1b9649de4c9d /mm/memory.c | |
| parent | 6935224da2482a261c786501fbccb1dc4a675225 (diff) | |
| parent | bc465aa9d045feb0e13b4a8f32cc33c1943f62d6 (diff) | |
Merge tag 'v4.0-rc5' into spi-bcm2835
Linux 4.0-rc5
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/mm/memory.c b/mm/memory.c index 8068893697bb..411144f977b1 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3072,8 +3072,13 @@ static int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma, * Avoid grouping on DSO/COW pages in specific and RO pages * in general, RO pages shouldn't hurt as much anyway since * they can be in shared cache state. + * + * FIXME! This checks "pmd_dirty()" as an approximation of + * "is this a read-only page", since checking "pmd_write()" + * is even more broken. We haven't actually turned this into + * a writable page, so pmd_write() will always be false. */ - if (!pte_write(pte)) + if (!pte_dirty(pte)) flags |= TNF_NO_GROUP; /* |