bcachefs: time_stats: add larger units

Filesystems can stay mounted for a very long time, so add some larger
units.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Author: Darrick J. Wong

fs/bcachefs/time_stats.c

@@ -17,6 +17,9 @@ static const struct time_unit time_units[] = {
 	{ "s",		NSEC_PER_SEC	 },
 	{ "m",          (u64) NSEC_PER_SEC * 60},
 	{ "h",          (u64) NSEC_PER_SEC * 3600},
+	{ "d",          (u64) NSEC_PER_SEC * 3600 * 24},
+	{ "w",          (u64) NSEC_PER_SEC * 3600 * 24 * 7},
+	{ "y",          (u64) NSEC_PER_SEC * ((3600 * 24 * 7 * 365) + (3600 * (24 / 4) * 7))}, /* 365.25d */
 	{ "eon",        U64_MAX          },
 };