diff options
| author | Javier González <javier@javigon.com> | 2018-10-09 13:11:45 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-10-09 08:25:06 -0600 |
| commit | 9cc85bc761f83da41935cdd6edcdb7c122bc90bf (patch) | |
| tree | 5dcd03a5affc93a3bdfa7c989a436e56f3635882 | |
| parent | 7a7d6f9b48cce82a1a666ec958125f257e5786fc (diff) | |
| download | linux-9cc85bc761f83da41935cdd6edcdb7c122bc90bf.tar.bz2 | |
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>
| -rw-r--r-- | drivers/lightnvm/pblk-core.c | 13 |
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) |