On Tue, 13 Feb 2007 13:48:53 +1100 Nick Piggin wrote:
> Andrew Morton wrote:
> >>On Mon, 12 Feb 2007 14:50:40 -0800 Randy Dunlap <[email protected]> wrote:
> >>2.6.20-git8 on x86_64:
> >>
> >>
> >> LD init/built-in.o
> >> LD .tmp_vmlinux1
> >>mm/built-in.o: In function `sys_mincore':
> >>(.text+0xe584): undefined reference to `swapper_space'
> >>make: *** [.tmp_vmlinux1] Error 1
> >
> >
> > oops. CONFIG_SWAP=n, I assume?
> >
>
> Hmm, OK. Hugh can strip me of my bonus point now...
>
> Hugh, you can strip me of my bonus point now... How about your other
> suggestion to just remove the stats from lookup_swap_cache? (and should
> we also rename it to find_get_swap_page?)
I need a fix for this. It's killing my daily/automated builds.
So here is an ifdeffery-fix.
BUT: what is <present> used for in that loop? or is it used?
---
From: Randy Dunlap <[email protected]>
Don't check for pte swap entries when CONFIG_SWAP=n.
mm/built-in.o: In function `sys_mincore':
(.text+0xe584): undefined reference to `swapper_space'
Signed-off-by: Randy Dunlap <[email protected]>
---
mm/mincore.c | 4 ++++
1 file changed, 4 insertions(+)
--- linux-2.6.20-git8.orig/mm/mincore.c
+++ linux-2.6.20-git8/mm/mincore.c
@@ -111,6 +111,7 @@ static long do_mincore(unsigned long add
present = mincore_page(vma->vm_file->f_mapping, pgoff);
} else { /* pte is a swap entry */
+#ifdef CONFIG_SWAP
swp_entry_t entry = pte_to_swp_entry(pte);
if (is_migration_entry(entry)) {
/* migration entries are always uptodate */
@@ -119,6 +120,9 @@ static long do_mincore(unsigned long add
pgoff = entry.val;
present = mincore_page(&swapper_space, pgoff);
}
+#else
+ present = 0;
+#endif
}
}
pte_unmap_unlock(ptep-1, ptl);
-
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