For modern filesystems such as btrfs, t/p/e size level operations are common. add size unit t/p/e parsing to memparse
Signed-off-by: Gui Hecheng <guihc.f...@cn.fujitsu.com> --- lib/cmdline.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/lib/cmdline.c b/lib/cmdline.c index eb67911..20a55b0 100644 --- a/lib/cmdline.c +++ b/lib/cmdline.c @@ -119,11 +119,17 @@ char *get_options(const char *str, int nints, int *ints) * @retptr: (output) Optional pointer to next char after parse completes * * Parses a string into a number. The number stored at @ptr is - * potentially suffixed with %K (for kilobytes, or 1024 bytes), - * %M (for megabytes, or 1048576 bytes), or %G (for gigabytes, or - * 1073741824). If the number is suffixed with K, M, or G, then + * potentially suffixed with + * %K (for kilobytes, or 1024 bytes), + * %M (for megabytes, or 1048576 bytes), + * %G (for gigabytes, or 1073741824), + * %T (for terabytes, or 1099511627776), + * %P (for petabytes, or 1125899906842624 bytes), + * %E (for exabytes, or 1152921504606846976 bytes). + * If the number is suffixed with K, M, G, T, P, E, then * the return value is the number multiplied by one kilobyte, one - * megabyte, or one gigabyte, respectively. + * megabyte, one gigabyte, one terabyte, one petabyte, one exabyte, + * respectively. */ unsigned long long memparse(const char *ptr, char **retptr) @@ -133,6 +139,15 @@ unsigned long long memparse(const char *ptr, char **retptr) unsigned long long ret = simple_strtoull(ptr, &endptr, 0); switch (*endptr) { + case 'E': + case 'e': + ret <<= 10; + case 'P': + case 'p': + ret <<= 10; + case 'T': + case 't': + ret <<= 10; case 'G': case 'g': ret <<= 10; -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/