On Wed, Apr 06, 2022 at 08:05:12AM +0200, Christoph Hellwig wrote: > Add a helper to query the number of sectors support per each discard bio > based on the block device and use this helper to stop various places from > poking into the request_queue to see if discard is supported and if so how > much. This mirrors what is done e.g. for write zeroes as well. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> > --- > block/blk-core.c | 2 +- > block/blk-lib.c | 2 +- > block/ioctl.c | 3 +-- > drivers/block/drbd/drbd_main.c | 2 +- > drivers/block/drbd/drbd_nl.c | 12 +++++++----- > drivers/block/drbd/drbd_receiver.c | 5 ++--- > drivers/block/loop.c | 9 +++------ > drivers/block/rnbd/rnbd-srv-dev.h | 6 +----- > drivers/block/xen-blkback/xenbus.c | 2 +- > drivers/md/bcache/request.c | 4 ++-- > drivers/md/bcache/super.c | 2 +- > drivers/md/bcache/sysfs.c | 2 +- > drivers/md/dm-cache-target.c | 9 +-------- > drivers/md/dm-clone-target.c | 9 +-------- > drivers/md/dm-io.c | 2 +- > drivers/md/dm-log-writes.c | 3 +-- > drivers/md/dm-raid.c | 9 ++------- > drivers/md/dm-table.c | 4 +--- > drivers/md/dm-thin.c | 9 +-------- > drivers/md/dm.c | 2 +- > drivers/md/md-linear.c | 4 ++-- > drivers/md/raid0.c | 2 +- > drivers/md/raid1.c | 6 +++--- > drivers/md/raid10.c | 8 ++++---- > drivers/md/raid5-cache.c | 2 +- > drivers/target/target_core_device.c | 8 +++----- For > fs/btrfs/extent-tree.c | 4 ++-- > fs/btrfs/ioctl.c | 2 +- Acked-by: David Sterba <dsterba@xxxxxxxx>