Commit 25da852d authored Feb 22, 2024 by Qu Wenruo Committed by David Sterba Mar 05, 2024

btrfs: compression: remove dead comments in btrfs_compress_heuristic()



Since commit a440d48c ("Btrfs: heuristic: implement sampling
logic"), btrfs_compress_heuristic() is no longer a simple "return true",
but more complex to determine if we should compress.

Thus the comment is dead and can be confusing, just remove it.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

parent b086c5bd

fs/btrfs/compression.c

+0 −5

Original line number	Diff line number	Diff line
		@@ -1476,11 +1476,6 @@ static void heuristic_collect_sample(struct inode *inode, u64 start, u64 end,
		/*
		* Compression heuristic.
		*
		* For now is's a naive and optimistic 'return true', we'll extend the logic to
		* quickly (compared to direct compression) detect data characteristics
		* (compressible/incompressible) to avoid wasting CPU time on incompressible
		* data.
		*
		* The following types of analysis can be performed:
		* - detect mostly zero data
		* - detect data with low "byte set" size (text, etc)