btrfs: Introduce btrfs_io_geometry infrastructure

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Add a structure that holds various parameters for IO calculations and a
helper that fills the values. This will help further refactoring and
reduction of functions that in some way open-coded the calculations.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Nikolay Borisov 2019-06-03 12:05:03 +03:00 • committed by David Sterba

parent c9d713d5b5

commit 5f1411265e

2 changed files with 113 additions and 0 deletions

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96

fs/btrfs/volumes.c

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17

fs/btrfs/volumes.h

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