On 4/14/22 21:52, Christoph Hellwig wrote: > Just use a non-zero max_discard_sectors as an indicator for discard > support, similar to what is done for write zeroes. > > The only places where needs special attention is the RAID5 driver, > which must clear discard support for security reasons by default, > even if the default stacking rules would allow for it. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> > Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> > Acked-by: Christoph Böhmwalder <christoph.boehmwalder@xxxxxxxxxx> [drbd] > Acked-by: Jan Höppner <hoeppner@xxxxxxxxxxxxx> [s390] > Acked-by: Coly Li <colyli@xxxxxxx> [bcache] > Acked-by: David Sterba <dsterba@xxxxxxxx> [btrfs] > --- Looks good. Reviewed-by: Chaitanya Kulkarni <kch@xxxxxxxxxx> -ck
