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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-20 11:27:18 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-20 11:27:18 +0100
commit4958134df54c2c84e9c22ea042761d439164d26e (patch)
tree503177afab11f7d25b12a84ce25b481d305c51ba /drivers/md/dm-table.c
parentc4f528795d1add8b63652673f7262729f679c6c1 (diff)
parentc698ca5278934c0ae32297a8725ced2e27585d7f (diff)
Merge 4.16-rc6 into tty-next
We want the serial/tty fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/md/dm-table.c')
-rw-r--r--drivers/md/dm-table.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 5fe7ec356c33..7eb3e2a3c07d 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -942,17 +942,12 @@ static int dm_table_determine_type(struct dm_table *t)
if (t->type != DM_TYPE_NONE) {
/* target already set the table's type */
- if (t->type == DM_TYPE_BIO_BASED)
- return 0;
- else if (t->type == DM_TYPE_NVME_BIO_BASED) {
- if (!dm_table_does_not_support_partial_completion(t)) {
- DMERR("nvme bio-based is only possible with devices"
- " that don't support partial completion");
- return -EINVAL;
- }
- /* Fallthru, also verify all devices are blk-mq */
+ if (t->type == DM_TYPE_BIO_BASED) {
+ /* possibly upgrade to a variant of bio-based */
+ goto verify_bio_based;
}
BUG_ON(t->type == DM_TYPE_DAX_BIO_BASED);
+ BUG_ON(t->type == DM_TYPE_NVME_BIO_BASED);
goto verify_rq_based;
}
@@ -985,6 +980,7 @@ static int dm_table_determine_type(struct dm_table *t)
}
if (bio_based) {
+verify_bio_based:
/* We must use this table as bio-based */
t->type = DM_TYPE_BIO_BASED;
if (dm_table_supports_dax(t) ||
@@ -1755,7 +1751,7 @@ static int device_no_partial_completion(struct dm_target *ti, struct dm_dev *dev
char b[BDEVNAME_SIZE];
/* For now, NVMe devices are the only devices of this class */
- return (strncmp(bdevname(dev->bdev, b), "nvme", 3) == 0);
+ return (strncmp(bdevname(dev->bdev, b), "nvme", 4) == 0);
}
static bool dm_table_does_not_support_partial_completion(struct dm_table *t)