On Thu, Sep 26, 2019 at 04:49:23PM +0300, Kirill A. Shutemov wrote: > It happens if the VMA got unmapped under us while we dropped mmap_sem > and inode got freed. > > Pinning the file if we drop mmap_sem fixes the issue. > > Signed-off-by: Kirill A. Shutemov <[email protected]> > Reported-by: [email protected] > Cc: Hillf Danton <[email protected]> > Cc: Matthew Wilcox <[email protected]> > Cc: Hugh Dickins <[email protected]>
Reviewed-by: Matthew Wilcox (Oracle) <[email protected]>
