btrfs-progs: Introduce kernel sizes to cleanup large intermediate number

Large numbers like (1024 * 1024 * 1024) may cost reader/reviewer to
waste one second to convert to 1G.

Introduce kernel include/linux/sizes.h to replace any intermediate
number larger than 4096 (not including 4096) to SZ_*.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/cmds-filesystem.c b/cmds-filesystem.c
index e7d31364..7174891a 100644
--- a/cmds-filesystem.c
+++ b/cmds-filesystem.c
@@ -1030,7 +1030,7 @@ static int cmd_filesystem_defrag(int argc, char **argv)
 	 * better results and is independent of the kernel default. We have to
 	 * use the v2 defrag ioctl.
 	 */
-	thresh = 32 * 1024 * 1024;
+	thresh = SZ_32M;
 
 	defrag_global_errors = 0;
 	defrag_global_verbose = 0;