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btrfs: compression: attach workspace manager to the ops

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There's a lot of indirection when the generic code calls into
algo-specific callbacks to reach the private workspace manager structure
and back to the generic code.

To simplify that, export the workspace manager for heuristic, LZO and
ZLIB, while ZSTD is going to use it's own manager.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2019-10-02 00:53:31 +02:00
parent 1e4eb74654
commit be95104531
5 changed files with 6 additions and 0 deletions
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1
fs/btrfs/compression.h
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@ -140,6 +140,7 @@ struct btrfs_compress_op {
void (*free_workspace)(struct list_head *workspace);
struct workspace_manager *workspace_manager;
/* Maximum level supported by the compression algorithm */
unsigned int max_level;
unsigned int default_level;