homework: default to btrfs compression

This follows what Fedora did with 34: enables compression by default,
lowering IO bandwidth and reducing disk space use, at the price of
slightly higher CPU use.

https://fedoraproject.org/wiki/Changes/BtrfsTransparentCompression

diff --git a/src/home/homework-mount.c b/src/home/homework-mount.c
index 82b461a9873616aed05e7ec71a7a78d6f54edbec..d73a908f1cfcde07c2d449b08690ef7d3c0bfa09 100644 (file)
--- a/src/home/homework-mount.c
+++ b/src/home/homework-mount.c
@@ -25,7 +25,7 @@ static const char *mount_options_for_fstype(const char *fstype) {
         if (streq(fstype, "xfs"))
                 return "noquota";
         if (streq(fstype, "btrfs"))
-                return "noacl";
+                return "noacl,compress=zstd:1";
         return NULL;
 }