On Mon, Dec 11, 2017 at 01:14:20PM -0200, Thiago Rafael Becker wrote: > In testing, we found that nfsd threads may call set_groups in parallel for > the same entry cached in auth.unix.gid, racing in the call of groups_sort, > corrupting the groups for that entry and leading to permission denials for > the client. > > This patch: > - Make groups_sort globally visible. > - Move the call to groups_sort to the modifiers of group_info > - Remove the call to groups_sort from set_groups > > Signed-off-by: Thiago Rafael Becker <thiago.becker@xxxxxxxxx> Reviewed-by: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
