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| H A D | mmap.c | diff 4c1bbf1ba631d7db61ce3462349a3f5d14ae3009 Mon Oct 06 10:59:55 CEST 2008 Tao Ma <tao.ma@oracle.com> ocfs2: return 0 in page_mkwrite to let VFS retry.
In ocfs2_page_mkwrite, we return -EINVAL when we found the page mapping
isn't updated, and it will cause the user space program get SIGBUS and
exit. The reason is that during race writeable mmap, we will do
unmap_mapping_range in ocfs2_data_downconvert_worker. The good thing is
that if we reuturn 0 in page_mkwrite, VFS will retry fault and then
call page_mkwrite again, so it is safe to return 0 here.
Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
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