tree 72c5dadc442b18ce267b58ceda5f93a5dda326f4
parent 02b03b2c3059483156ecaa0393f040cdbe8bb1ac
author Andreas Gruenbacher <agruenba@redhat.com> 1543932387 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1547370232 +0100

gfs2: Fix loop in gfs2_rbm_find

commit 2d29f6b96d8f80322ed2dd895bca590491c38d34 upstream.

Fix the resource group wrap-around logic in gfs2_rbm_find that commit
e579ed4f44 broke.  The bug can lead to unnecessary repeated scanning of the
same bitmaps; there is a risk that future changes will turn this into an
endless loop.

Fixes: e579ed4f44 ("GFS2: Introduce rbm field bii")
Cc: stable@vger.kernel.org # v3.13+
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>