On 3/5/21 2:55 PM, Jeffle Xu wrote:
> Similar to commit a4c8dd9c2d09 ("dm table: fix iterate_devices based
> device capability checks"), fix partial completion capability check and
> invert logic of the corresponding iterate_devices_callout_fn so that all
> devices' partial completion capabilities are properly checked.
>
> Signed-off-by: Jeffle Xu <jefflexu@xxxxxxxxxxxxxxxxx>
> Fixes: 22c11858e800 ("dm: introduce DM_TYPE_NVME_BIO_BASED")
Similarly, the code this patch fixes, i.e., commit 22c11858e800 ("dm:
introduce DM_TYPE_NVME_BIO_BASED"), was removed since commit
9c37de297f65 ("dm: remove special-casing of bio-based immutable
singleton target on NVMe") in v5.10. Thus the code base doesn't exist in
the latest master branch.
It needs Mike's review.
--
Thanks,
Jeffle
> ---
> drivers/md/dm-table.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
> index 5a94e6dc0b70..1f745d371957 100644
> --- a/drivers/md/dm-table.c
> +++ b/drivers/md/dm-table.c
> @@ -1772,18 +1772,18 @@ static int queue_no_sg_merge(struct dm_target *ti, struct dm_dev *dev,
> return q && test_bit(QUEUE_FLAG_NO_SG_MERGE, &q->queue_flags);
> }
>
> -static int device_no_partial_completion(struct dm_target *ti, struct dm_dev *dev,
> +static int device_is_partial_completion(struct dm_target *ti, struct dm_dev *dev,
> sector_t start, sector_t len, void *data)
> {
> char b[BDEVNAME_SIZE];
>
> /* For now, NVMe devices are the only devices of this class */
> - return (strncmp(bdevname(dev->bdev, b), "nvme", 4) == 0);
> + return (strncmp(bdevname(dev->bdev, b), "nvme", 4) != 0);
> }
>
> static bool dm_table_does_not_support_partial_completion(struct dm_table *t)
> {
> - return dm_table_all_devices_attribute(t, device_no_partial_completion);
> + return !dm_table_any_dev_attr(t, device_is_partial_completion);
> }
>
> static int device_not_write_same_capable(struct dm_target *ti, struct dm_dev *dev,
>
