diff options
| author | Javier González <javier@javigon.com> | 2018-10-09 14:11:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-24 10:20:50 +0300 |
| commit | d56fe8f59a236845ed3c90deba063780282ec2ba (patch) | |
| tree | 65453483beab9c2584aa2a341313a74afef75943 | |
| parent | c7e49f73152f246925285814a8b7dee5abbe944f (diff) | |
| download | linux-d56fe8f59a236845ed3c90deba063780282ec2ba.tar.xz | |
lightnvm: pblk: guarantee emeta on line close
[ Upstream commit 9cc85bc761f83da41935cdd6edcdb7c122bc90bf ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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 fd322565fb0f..8dce31dbf2cb 100644 --- a/drivers/lightnvm/pblk-core.c +++ b/drivers/lightnvm/pblk-core.c @@ -1773,6 +1773,17 @@ 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)); @@ -1790,8 +1801,6 @@ 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) |