diff options
| author | Hans Holmberg <hans.holmberg@cnexlabs.com> | 2018-03-30 00:04:50 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-03-29 17:29:09 -0600 |
| commit | cfe1c9e2e2a34ccaf2ba01d2c435d65207335ca1 (patch) | |
| tree | cbcade11c13c78fdef2535b7f35e7cf09ed3621e /drivers/lightnvm | |
| parent | 8f37d1913f096b530242f7815ac0be3c20888ef9 (diff) | |
| download | linux-cfe1c9e2e2a34ccaf2ba01d2c435d65207335ca1.tar.bz2 | |
lightnvm: pblk: handle bad sectors in the emeta area correctly
Unless we check if there are bad sectors in the entire emeta-area
we risk ending up with valid bitmap / available sector count inconsistency.
This results in lines with a bad chunk at the last LUN marked as bad,
so go through the whole emeta area and mark up the invalid sectors.
Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm')
| -rw-r--r-- | drivers/lightnvm/pblk-core.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c index 0487b9340c1d..9027cf2ed1d8 100644 --- a/drivers/lightnvm/pblk-core.c +++ b/drivers/lightnvm/pblk-core.c @@ -1021,6 +1021,7 @@ static int pblk_line_init_bb(struct pblk *pblk, struct pblk_line *line, int nr_bb = 0; u64 off; int bit = -1; + int emeta_secs; line->sec_in_line = lm->sec_per_line; @@ -1055,18 +1056,18 @@ static int pblk_line_init_bb(struct pblk *pblk, struct pblk_line *line, /* Mark emeta metadata sectors as bad sectors. We need to consider bad * blocks to make sure that there are enough sectors to store emeta */ - off = lm->sec_per_line - lm->emeta_sec[0]; - bitmap_set(line->invalid_bitmap, off, lm->emeta_sec[0]); - while (nr_bb) { + emeta_secs = lm->emeta_sec[0]; + off = lm->sec_per_line; + while (emeta_secs) { off -= geo->sec_per_pl; if (!test_bit(off, line->invalid_bitmap)) { bitmap_set(line->invalid_bitmap, off, geo->sec_per_pl); - nr_bb--; + emeta_secs -= geo->sec_per_pl; } } - line->sec_in_line -= lm->emeta_sec[0]; line->emeta_ssec = off; + line->sec_in_line -= lm->emeta_sec[0]; line->nr_valid_lbas = 0; line->left_msecs = line->sec_in_line; *line->vsc = cpu_to_le32(line->sec_in_line); |