btrfs-progs: mkfs: print in summary if compression is used

$ mkfs.btrfs --compress zlib:9 --rootdir Documentation img ... Rootdir from: /path/Documentation Compress: zlib:9 Shrink: no ... Signed-off-by: David Sterba <[email protected]>
kdave · Jan 23, 2025 · dfee618 · dfee618
1 parent 4a5e3fa
commit dfee618
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/mkfs/main.c b/mkfs/main.c
@@ -2051,6 +2051,15 @@ int BOX_MAIN(mkfs)(int argc, char **argv)
 			goto out;
 		}
 
+		pr_verbose(LOG_DEFAULT, "  Compress:         %s%s%s\n",
+			   compression == BTRFS_COMPRESS_ZSTD ? "zstd" :
+			   compression == BTRFS_COMPRESS_LZO ? "lzo" :
+			   compression == BTRFS_COMPRESS_ZLIB ? "zlib" : "no",
+			   compression_level > 0 ? ":" : "",
+			   compression_level > 0 ?
+				   pretty_size_mode(compression_level, UNITS_RAW) :
+				   "");
+
 		ret = btrfs_mkfs_fill_dir(trans, source_dir, root,
 					  &subvols, compression,
 					  compression_level);