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gfs2: Fix loop in gfs2_rbm_find
Fix the resource group wrap-around logic in gfs2_rbm_find that commite579ed4f44
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>
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@ -1780,9 +1780,9 @@ static int gfs2_rbm_find(struct gfs2_rbm *rbm, u8 state, u32 *minext,
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goto next_iter;
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}
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if (ret == -E2BIG) {
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n += rbm->bii - initial_bii;
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rbm->bii = 0;
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rbm->offset = 0;
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n += (rbm->bii - initial_bii);
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goto res_covered_end_of_rgrp;
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}
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return ret;
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