"pcc", /* 0x1000 */
"plain_layout", /* 0x2000 */
"async_discard", /* 0x4000 */
+ "client_encryption", /* 0x8000 */
NULL
};
case 'p':
case 'P':
units <<= 10;
+ /* fallthrough */
case 't':
case 'T':
units <<= 10;
+ /* fallthrough */
case 'g':
case 'G':
units <<= 10;
+ /* fallthrough */
case 'm':
case 'M':
units <<= 10;
+ /* fallthrough */
case 'k':
case 'K':
units <<= 10;
* have a unit as the last character. The function handles overflow/underflow
* of the signed integer.
*/
-static int str_to_s64_internal(const char __user *buffer, unsigned long count,
- __s64 *val, __u64 def_mult, bool allow_units)
+int lu_str_to_s64(char *buffer, unsigned long count, __s64 *val, char defunit)
{
- char kernbuf[22];
+ __u64 mult = 1;
__u64 tmp;
unsigned int offset = 0;
int signed sign = 1;
__u64 max = LLONG_MAX;
int rc = 0;
- if (count > (sizeof(kernbuf) - 1))
- return -EINVAL;
-
- if (copy_from_user(kernbuf, buffer, count))
- return -EFAULT;
-
- kernbuf[count] = '\0';
+ if (defunit != '1') {
+ rc = get_mult(defunit, &mult);
+ if (rc)
+ return rc;
+ }
/* keep track of our sign */
- if (*kernbuf == '-') {
+ if (*buffer == '-') {
sign = -1;
offset++;
/* equivalent to max = -LLONG_MIN, avoids overflow */
max++;
}
- rc = str_to_u64_parse(kernbuf + offset, count - offset,
- &tmp, def_mult, allow_units);
+ rc = str_to_u64_parse(buffer + offset, count - offset,
+ &tmp, mult, true);
if (rc)
return rc;
return 0;
}
+EXPORT_SYMBOL(lu_str_to_s64);
/* identical to s64 version, but does not handle overflow */
static int str_to_u64_internal(const char __user *buffer, unsigned long count,
int lprocfs_str_with_units_to_s64(const char __user *buffer,
unsigned long count, __s64 *val, char defunit)
{
- __u64 mult = 1;
- int rc;
+ char kernbuf[22];
- if (defunit != '1') {
- rc = get_mult(defunit, &mult);
- if (rc)
- return rc;
- }
+ if (count > (sizeof(kernbuf) - 1))
+ return -EINVAL;
+
+ if (copy_from_user(kernbuf, buffer, count))
+ return -EFAULT;
+
+ kernbuf[count] = '\0';
- return str_to_s64_internal(buffer, count, val, mult, true);
+ return lu_str_to_s64(kernbuf, count, val, defunit);
}
EXPORT_SYMBOL(lprocfs_str_with_units_to_s64);