Messages in this thread | | | Date | Wed, 03 Mar 2004 07:46:32 -0800 | From | "Martin J. Bligh" <> | Subject | Re: 230-objrmap fixes for 2.6.3-mjb2 |
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--Andrew Morton <akpm@osdl.org> wrote (on Wednesday, March 03, 2004 02:58:20 -0800):
> Andrea Arcangeli <andrea@suse.de> wrote: >> >> --- sles-objrmap/mm/rmap.c.~1~ 2004-03-03 06:45:38.995594456 +0100 >> +++ sles-objrmap/mm/rmap.c 2004-03-03 07:01:39.200621104 +0100 >> @@ -470,7 +470,7 @@ try_to_unmap_obj_one(struct vm_area_stru >> if (!pte) >> goto out; >> >> - if (vma->vm_flags & VM_LOCKED) { >> + if (vma->vm_flags & (VM_LOCKED|VM_RESERVED)) { >> ret = SWAP_FAIL; >> goto out_unmap; > > I keep on wanting to put that in there too. But pages in a VM_RESERVED vma > should not find their way onto the LRU. Maybe we should be checking for > that in do_no_page().
There was talk at one point of moving the "unswappable" state down into the struct page. Is that still realistic? It would seem rather more efficient, but I forget what problem we ran into with it.
M.
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