On Thu, Sep 17, 2020 at 10:10:45AM +0200, Oscar Salvador wrote: > Aristeu Rozanski reported that a customer test case started > to report -EBUSY after the hwpoison report patchset. > > There is a race window between spotting a free page and taking it off > its buddy freelist, so it might be that by the time we try to take it off, > the page has been already allocated. > > This patch tries to handle such race window by trying to handle the new > type of page again if the page was allocated under us. > > After this patch, Aristeu said the test cases work properly. > > Signed-off-by: Oscar Salvador <[email protected]> > Reported-by: Aristeu Rozanski <[email protected]>
Tested-by: Aristeu Rozanski <[email protected]> -- Aristeu
