diff options
| author |   Javier González <jg@lightnvm.io> | 2017-06-30 17:56:41 +0200 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2017-06-30 11:08:18 -0600 |
| commit | b5e063a2861a3af00fe3770e5fb85f936facbf42 (patch) | |
| tree | 461030bb83c92c026791b7db9de55e100d38aa0c | |
| parent | lightnvm: pblk: remove target using async. I/Os (diff) | |
| download | wireguard-linux-b5e063a2861a3af00fe3770e5fb85f936facbf42.tar.xz wireguard-linux-b5e063a2861a3af00fe3770e5fb85f936facbf42.zip | |
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>
| -rw-r--r-- | drivers/lightnvm/pblk-init.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c index 025d8fe52154..1b0f61233c21 100644 --- a/drivers/lightnvm/pblk-init.c +++ b/drivers/lightnvm/pblk-init.c @@ -716,6 +716,12 @@ add_emeta_page: 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) |