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| author |   Mike Snitzer <snitzer@redhat.com> | 2015-04-27 16:37:50 -0400 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2015-05-29 14:18:57 -0400 |
| commit | cbc4e3c1350beb47beab8f34ad9be3d34a20c705 (patch) | |
| tree | 443ef957c07dd59b979057be737f733e5142b2d3 /drivers/md/dm-table.c | |
| parent | Merge remote-tracking branch 'jens/for-4.2/core' into dm-4.2 (diff) | |
| download | linux-dev-cbc4e3c1350beb47beab8f34ad9be3d34a20c705.tar.xz linux-dev-cbc4e3c1350beb47beab8f34ad9be3d34a20c705.zip | |
dm: do not allocate any mempools for blk-mq request-based DM
Do not allocate the io_pool mempool for blk-mq request-based DM
(DM_TYPE_MQ_REQUEST_BASED) in dm_alloc_rq_mempools().
Also refine __bind_mempools() to have more precise awareness of which
mempools each type of DM device uses -- avoids mempool churn when
reloading DM tables (particularly for DM_TYPE_REQUEST_BASED).
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-table.c')
| -rw-r--r-- | drivers/md/dm-table.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index a5f94125ad01..85e1d39e9a38 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -964,8 +964,8 @@ static int dm_table_alloc_md_mempools(struct dm_table *t, struct mapped_device * return -EINVAL; } - if (!t->mempools) - return -ENOMEM; + if (IS_ERR(t->mempools)) + return PTR_ERR(t->mempools); return 0; } |