diff options
| author | Javier González <jg@lightnvm.io> | 2017-06-30 18:56:41 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-06-30 20:08:18 +0300 |
| commit | b5e063a2861a3af00fe3770e5fb85f936facbf42 (patch) | |
| tree | 461030bb83c92c026791b7db9de55e100d38aa0c /drivers | |
| parent | ee8d5c1ad54e48ec44b6ae9cf91144fcab6ebf83 (diff) | |
| download | linux-b5e063a2861a3af00fe3770e5fb85f936facbf42.tar.xz | |
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>
Diffstat (limited to 'drivers')
| -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) |