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btrfs: Introduce new bits for device allocation tree

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Rather than hijacking the existing defines let's just define new bits,
with more descriptive names. Instead of using yet more (currently at 18)
bits for the new flags, use the fact those flags will be specific to
the device allocation tree so define them using existing EXTENT_* flags.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2019-03-25 14:31:26 +02:00 committed by David Sterba
parent 39e264a40d
commit 930b090729
1 changed files with 3 additions and 0 deletions
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3
fs/btrfs/extent_io.h
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@ -27,6 +27,9 @@
EXTENT_CLEAR_DATA_RESV)
#define EXTENT_CTLBITS (EXTENT_DO_ACCOUNTING)
/* Redefined bits above which are used only in the device allocation tree */
#define CHUNK_ALLOCATED EXTENT_DIRTY
/*
* flags for bio submission. The high bits indicate the compression
* type for this bio