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SubjectRe: Writing to the swap space
Pavel Machek wrote:
>
> Hi!
>
> For swsusp, I need to write to the swap space.
>

Ah. That's some left-over code. Reads will be OK, but
writes will be unexpectedly asynchronous. Nothing in
the kernel uses that function for writes so it didn't show up.

--- linux-2.5.14/mm/page_io.c Tue Apr 30 17:56:30 2002
+++ 25/mm/page_io.c Mon May 6 15:24:09 2002
@@ -117,9 +117,6 @@ void rw_swap_page_nolock(int rw, swp_ent
page->mapping = &swapper_space;
if (!rw_swap_page_base(rw, entry, page))
unlock_page(page);
- if (rw == WRITE)
- wait_on_page_writeback(page);
- else
- wait_on_page_locked(page);
+ wait_on_page_locked(page);
page->mapping = NULL;
}

-
-
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