btrfs: drop btrfs_device::can_discard to query directly

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We can query the bdev directly when needed at btrfs_discard_extent()
so drop btrfs_device::can_discard.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Suggested-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Anand Jain 2017-11-29 18:53:43 +08:00 • committed by David Sterba

parent ccc8dc758d

commit 38b5f68e98

3 changed files with 4 additions and 10 deletions

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5

fs/btrfs/extent-tree.c

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8

fs/btrfs/volumes.c

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1

fs/btrfs/volumes.h

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