Commit e18333a7 authored by David Sterba's avatar David Sterba
Browse files

btrfs: define compression levels statically 



The maximum and default levels do not change and can be defined
directly. The set_level callback was a temporary solution and will be
removed.

Reviewed-by: default avatarNikolay Borisov <nborisov@suse.com>
Reviewed-by: default avatarAnand Jain <anand.jain@oracle.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent efad8a85

fs/btrfs/compression.h

+4 −0
Original line number Diff line number Diff line
@@ -162,6 +162,10 @@ struct btrfs_compress_op { 
	 * if the level is out of bounds or the default if 0 is passed in.

	 */

	unsigned int (*set_level)(unsigned int level);



	/* Maximum level supported by the compression algorithm */

	unsigned int max_level;

	unsigned int default_level;

};



/* The heuristic workspaces are managed via the 0th workspace manager */

fs/btrfs/lzo.c

+2 −0
Original line number Diff line number Diff line
@@ -523,4 +523,6 @@ const struct btrfs_compress_op btrfs_lzo_compress = { 
	.decompress_bio		= lzo_decompress_bio,

	.decompress		= lzo_decompress,

	.set_level		= lzo_set_level,

	.max_level		= 1,

	.default_level		= 1,

};

fs/btrfs/zlib.c

+2 −0
Original line number Diff line number Diff line
@@ -437,4 +437,6 @@ const struct btrfs_compress_op btrfs_zlib_compress = { 
	.decompress_bio		= zlib_decompress_bio,

	.decompress		= zlib_decompress,

	.set_level              = zlib_set_level,

	.max_level		= 9,

	.default_level		= BTRFS_ZLIB_DEFAULT_LEVEL,

};

fs/btrfs/zstd.c

+2 −0
Original line number Diff line number Diff line
@@ -729,4 +729,6 @@ const struct btrfs_compress_op btrfs_zstd_compress = { 
	.decompress_bio = zstd_decompress_bio,

	.decompress = zstd_decompress,

	.set_level = zstd_set_level,

	.max_level	= ZSTD_BTRFS_MAX_LEVEL,

	.default_level	= ZSTD_BTRFS_DEFAULT_LEVEL,

};