From 3c9f3681d0b4af09c1cbf04f92fdfb72bd81ad7b Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sun, 31 Aug 2008 10:13:54 -0500 Subject: [SCSI] lib: add generic helper to print sizes rounded to the correct SI range This patch adds the ability to print sizes in either units of 10^3 (SI) or 2^10 (Binary) units. It rounds up to three significant figures and can be used for either memory or storage capacities. Oh, and I'm fully aware that 64 bits is only 16EiB ... the Zetta and Yotta units are added for future proofing against the day we have 128 bit computers ... [fujita.tomonori@lab.ntt.co.jp: fix missed unsigned long long cast] Signed-off-by: James Bottomley --- include/linux/string_helpers.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 include/linux/string_helpers.h (limited to 'include/linux/string_helpers.h') diff --git a/include/linux/string_helpers.h b/include/linux/string_helpers.h new file mode 100644 index 00000000000..a3eb2f65b65 --- /dev/null +++ b/include/linux/string_helpers.h @@ -0,0 +1,16 @@ +#ifndef _LINUX_STRING_HELPERS_H_ +#define _LINUX_STRING_HELPERS_H_ + +#include + +/* 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 */ +}; + +int string_get_size(u64 size, enum string_size_units units, + char *buf, int len); + +#endif -- cgit v1.2.3