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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-04-14 21:28:32 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-04-14 21:28:32 (GMT) |
| commit | 4b2f8838479eb2abe042e094f7d2cced6d5ea772 (patch) | |
| tree | 5ef3236b354a494c8d71a572896283e44989c696 /mm/memory.c | |
| parent | c848791f0336914a3081ea3fe029cf177d81de81 (diff) | |
| parent | 9fd85eb502a78bd812db58bd1f668b2a06ee30a5 (diff) | |
| download | linux-4b2f8838479eb2abe042e094f7d2cced6d5ea772.tar.xz | |
Merge branch 'devel-stable' into for-next
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 8068893..411144f 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; /* |