Btrfs: separate DISCARD from __btrfs_map_block

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Since DISCARD is not as important as an operation like write, we don't
copy it to target device during replace, and it makes __btrfs_map_block
less complex.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Liu Bo 2017-03-14 13:33:56 -07:00 • committed by David Sterba

parent 592d92eeab

commit 0b3d4cd371

1 changed files with 175 additions and 114 deletions

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289

fs/btrfs/volumes.c

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