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Commit b5e063a2 authored Jun 30, 2017 by Javier González Committed by Jens Axboe Jun 30, 2017

lightnvm: pblk: add initialization check



Add a sanity check to the pblk initialization sequence in order to
ensure that enough LUNs have been allocated to store the line metadata.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent ee8d5c1a

drivers/lightnvm/pblk-init.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -716,6 +716,12 @@ static int pblk_lines_init(struct pblk *pblk)
		lm->emeta_bb = geo->nr_luns - i;
		lm->min_blk_line = 1 + DIV_ROUND_UP(lm->smeta_sec + lm->emeta_sec[0],
		geo->sec_per_blk);
		if (lm->min_blk_line > lm->blk_per_line) {
		pr_err("pblk: config. not supported. Min. LUN in line:%d\n",
		lm->blk_per_line);
		ret = -EINVAL;
		goto fail;
		}

		ret = pblk_lines_alloc_metadata(pblk);
		if (ret)