diff options
Diffstat (limited to 'drivers/md/persistent-data/dm-space-map-metadata.c')
| -rw-r--r-- | drivers/md/persistent-data/dm-space-map-metadata.c | 40 |
1 files changed, 31 insertions, 9 deletions
diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c index 1c959684caef..536782e3bcb7 100644 --- a/drivers/md/persistent-data/dm-space-map-metadata.c +++ b/drivers/md/persistent-data/dm-space-map-metadata.c @@ -384,12 +384,16 @@ static int sm_metadata_new_block(struct dm_space_map *sm, dm_block_t *b) struct sm_metadata *smm = container_of(sm, struct sm_metadata, sm); int r = sm_metadata_new_block_(sm, b); - if (r) - DMERR("unable to allocate new metadata block"); + if (r) { + DMERR_LIMIT("unable to allocate new metadata block"); + return r; + } r = sm_metadata_get_nr_free(sm, &count); - if (r) - DMERR("couldn't get free block count"); + if (r) { + DMERR_LIMIT("couldn't get free block count"); + return r; + } check_threshold(&smm->threshold, count); @@ -604,20 +608,38 @@ static int sm_metadata_extend(struct dm_space_map *sm, dm_block_t extra_blocks) * Flick into a mode where all blocks get allocated in the new area. */ smm->begin = old_len; - memcpy(&smm->sm, &bootstrap_ops, sizeof(smm->sm)); + memcpy(sm, &bootstrap_ops, sizeof(*sm)); /* * Extend. */ r = sm_ll_extend(&smm->ll, extra_blocks); + if (r) + goto out; /* - * Switch back to normal behaviour. + * We repeatedly increment then commit until the commit doesn't + * allocate any new blocks. */ - memcpy(&smm->sm, &ops, sizeof(smm->sm)); - for (i = old_len; !r && i < smm->begin; i++) - r = sm_ll_inc(&smm->ll, i, &ev); + do { + for (i = old_len; !r && i < smm->begin; i++) { + r = sm_ll_inc(&smm->ll, i, &ev); + if (r) + goto out; + } + old_len = smm->begin; + + r = sm_ll_commit(&smm->ll); + if (r) + goto out; + } while (old_len != smm->begin); + +out: + /* + * Switch back to normal behaviour. + */ + memcpy(sm, &ops, sizeof(*sm)); return r; } |