提交 b5e063a2 编写于 作者: J Javier González 提交者: Jens Axboe

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: NJavier González <javier@cnexlabs.com>
Signed-off-by: NMatias Bjørling <matias@cnexlabs.com>
Signed-off-by: NJens Axboe <axboe@kernel.dk>
上级 ee8d5c1a
......@@ -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)
......
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