Updated patch header to also point out the fix: Remove 'discards_supported' from the dm_table structure. The same information can be easily discovered from the table's target(s) in dm_table_supports_discards(). This change fixes an issue with per-target 'discards_supported' being ineffective, at insuring the final DM device advertises discard support, due to a different target not having 'num_discard_requests' > 0 -- this resulted in the overall table's 'discards_supported' being set to 0. Also DMWARN if a target sets 'discards_supported' override but forgets to set 'num_discard_requests'. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
