diff options
| author | Gui Hecheng <guihc.fnst@cn.fujitsu.com> | 2014-08-06 16:09:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 18:01:25 -0700 |
| commit | e004f3c7780de32fa822f292ebadd985bcadb1e0 (patch) | |
| tree | 6e555319c67560cfcec912d6f067bdead3fabaf8 /lib/cmdline.c | |
| parent | 428ac5fc056e06dc0b4ed82d5979add9a8c62b35 (diff) | |
| download | lwn-e004f3c7780de32fa822f292ebadd985bcadb1e0.tar.gz lwn-e004f3c7780de32fa822f292ebadd985bcadb1e0.zip | |
lib/cmdline.c: add size unit t/p/e to memparse
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.fnst@cn.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Reviewed-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/cmdline.c')
| -rw-r--r-- | lib/cmdline.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/lib/cmdline.c b/lib/cmdline.c index d4932f745e92..76a712e6e20e 100644 --- a/lib/cmdline.c +++ b/lib/cmdline.c @@ -121,11 +121,7 @@ EXPORT_SYMBOL(get_options); * @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 - * the return value is the number multiplied by one kilobyte, one - * megabyte, or one gigabyte, respectively. + * potentially suffixed with K, M, G, T, P, E. */ unsigned long long memparse(const char *ptr, char **retptr) @@ -135,6 +131,15 @@ 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; |