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| author | Nick Piggin <nickpiggin@yahoo.com.au> | 2005-09-03 15:54:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-05 00:05:43 -0700 |
| commit | c3dce2d89c269d5373a120d4a22fc2426ec992b0 (patch) | |
| tree | d4a52e35751484935a15f3b95e84bd28d6662b18 /mm/rmap.c | |
| parent | 6e21c8f145f5052c1c2fb4a4b41bee01c848159b (diff) | |
| download | lwn-c3dce2d89c269d5373a120d4a22fc2426ec992b0.tar.gz lwn-c3dce2d89c269d5373a120d4a22fc2426ec992b0.zip | |
[PATCH] mm: comment rmap
Just be clear that VM_RESERVED pages here are a bug, and the test is not there
because they are expected.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/rmap.c')
| -rw-r--r-- | mm/rmap.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/rmap.c b/mm/rmap.c index 28c6cf96d3c4..f5a6966b7eb0 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -527,6 +527,8 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma) * If the page is mlock()d, we cannot swap it out. * If it's recently referenced (perhaps page_referenced * skipped over this mm) then we should reactivate it. + * + * Pages belonging to VM_RESERVED regions should not happen here. */ if ((vma->vm_flags & (VM_LOCKED|VM_RESERVED)) || ptep_clear_flush_young(vma, address, pte)) { |