diff options
Diffstat (limited to 'drivers/md/dm-table.c')
| -rw-r--r-- | drivers/md/dm-table.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index a37c7b763643..0e833a154b31 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -1005,7 +1005,7 @@ bool dm_table_request_based(struct dm_table *t) return __table_type_request_based(dm_table_get_type(t)); } -static int dm_table_supports_poll(struct dm_table *t); +static bool dm_table_supports_poll(struct dm_table *t); static int dm_table_alloc_md_mempools(struct dm_table *t, struct mapped_device *md) { @@ -1027,7 +1027,7 @@ static int dm_table_alloc_md_mempools(struct dm_table *t, struct mapped_device * per_io_data_size = max(per_io_data_size, ti->per_io_data_size); min_pool_size = max(min_pool_size, ti->num_flush_bios); } - poll_supported = !!dm_table_supports_poll(t); + poll_supported = dm_table_supports_poll(t); } t->mempools = dm_alloc_md_mempools(md, type, per_io_data_size, min_pool_size, @@ -1547,9 +1547,20 @@ static int count_device(struct dm_target *ti, struct dm_dev *dev, return 0; } -static int dm_table_supports_poll(struct dm_table *t) +static bool dm_table_supports_poll(struct dm_table *t) { - return !dm_table_any_dev_attr(t, device_not_poll_capable, NULL); + struct dm_target *ti; + unsigned i = 0; + + while (i < dm_table_get_num_targets(t)) { + ti = dm_table_get_target(t, i++); + + if (!ti->type->iterate_devices || + ti->type->iterate_devices(ti, device_not_poll_capable, NULL)) + return false; + } + + return true; } /* |