summaryrefslogtreecommitdiffstats
path: root/drivers/lightnvm
diff options
context:
space:
mode:
authorJavier González <javier@javigon.com>2018-10-09 13:11:45 +0200
committerJens Axboe <axboe@kernel.dk>2018-10-09 08:25:06 -0600
commit9cc85bc761f83da41935cdd6edcdb7c122bc90bf (patch)
tree5dcd03a5affc93a3bdfa7c989a436e56f3635882 /drivers/lightnvm
parent7a7d6f9b48cce82a1a666ec958125f257e5786fc (diff)
downloadblackbird-obmc-linux-9cc85bc761f83da41935cdd6edcdb7c122bc90bf.tar.gz
blackbird-obmc-linux-9cc85bc761f83da41935cdd6edcdb7c122bc90bf.zip
lightnvm: pblk: guarantee emeta on line close
If a line is recovered from open chunks, the memory structures for emeta have not necessarily been properly set on line initialization. When closing a line, make sure that emeta is consistent so that the line can be recovered on the fast path on next reboot. Also, remove a couple of empty lines at the end of the function. Signed-off-by: Javier González <javier@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.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index 36ac9eff8ebd..a31417682c90 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -1775,6 +1775,17 @@ void pblk_line_close_meta(struct pblk *pblk, struct pblk_line *line)
wa->pad = cpu_to_le64(atomic64_read(&pblk->pad_wa));
wa->gc = cpu_to_le64(atomic64_read(&pblk->gc_wa));
+ if (le32_to_cpu(emeta_buf->header.identifier) != PBLK_MAGIC) {
+ emeta_buf->header.identifier = cpu_to_le32(PBLK_MAGIC);
+ memcpy(emeta_buf->header.uuid, pblk->instance_uuid, 16);
+ emeta_buf->header.id = cpu_to_le32(line->id);
+ emeta_buf->header.type = cpu_to_le16(line->type);
+ emeta_buf->header.version_major = EMETA_VERSION_MAJOR;
+ emeta_buf->header.version_minor = EMETA_VERSION_MINOR;
+ emeta_buf->header.crc = cpu_to_le32(
+ pblk_calc_meta_header_crc(pblk, &emeta_buf->header));
+ }
+
emeta_buf->nr_valid_lbas = cpu_to_le64(line->nr_valid_lbas);
emeta_buf->crc = cpu_to_le32(pblk_calc_emeta_crc(pblk, emeta_buf));
@@ -1792,8 +1803,6 @@ void pblk_line_close_meta(struct pblk *pblk, struct pblk_line *line)
spin_unlock(&l_mg->close_lock);
pblk_line_should_sync_meta(pblk);
-
-
}
static void pblk_save_lba_list(struct pblk *pblk, struct pblk_line *line)
OpenPOWER on IntegriCloud