lib/string_helpers: Add flags param to string_get_size()

The new flags parameter allows controlling
 - Whether or not the units suffix is separated by a space, for
   compatibility with sort -h
 - Whether or not to append a B suffix - we're not always printing
   bytes.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Jens Axboe <axboe@kernel.dk>

1 files changed, 5 insertions, 6 deletions

diff --git a/include/linux/string_helpers.h b/include/linux/string_helpers.h
index 6bd494cfa95e..1cc137402830 100644
--- a/include/linux/string_helpers.h
+++ b/include/linux/string_helpers.h
@@ -17,14 +17,13 @@ static inline bool string_is_terminated(const char *s, int len)
 	return memchr(s, '\0', len) ? true : false;
 }
 
-/* Descriptions of the types of units to
- * print in */
-enum string_size_units {
-	STRING_UNITS_10,	/* use powers of 10^3 (standard SI) */
-	STRING_UNITS_2,		/* use binary powers of 2^10 */
+enum string_size_flags {
+	STRING_SIZE_BASE2	= (1 << 0),
+	STRING_SIZE_NOSPACE	= (1 << 1),
+	STRING_SIZE_NOBYTES	= (1 << 2),
 };
 
-int string_get_size(u64 size, u64 blk_size, enum string_size_units units,
+int string_get_size(u64 size, u64 blk_size, enum string_size_flags flags,
 		    char *buf, int len);
 
 int parse_int_array_user(const char __user *from, size_t count, int **array);