match_string() returns the index of an array for a matching string,
which can be used intead of open coded implementation.
Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx>
---
mm/mempolicy.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 2e76a8f..cfd26d7 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2711,12 +2711,11 @@ void numa_default_policy(void)
int mpol_parse_str(char *str, struct mempolicy **mpol)
{
struct mempolicy *new = NULL;
- unsigned short mode;
unsigned short mode_flags;
nodemask_t nodes;
char *nodelist = strchr(str, ':');
char *flags = strchr(str, '=');
- int err = 1;
+ int err = 1, mode;
if (nodelist) {
/* NUL-terminate mode or flags string */
@@ -2731,12 +2730,8 @@ int mpol_parse_str(char *str, struct mempolicy **mpol)
if (flags)
*flags++ = '\0'; /* terminate mode string */
- for (mode = 0; mode < MPOL_MAX; mode++) {
- if (!strcmp(str, policy_modes[mode])) {
- break;
- }
- }
- if (mode >= MPOL_MAX)
+ mode = match_string(policy_modes, MPOL_MAX, str);
+ if (mode < 0)
goto out;
switch (mode) {
--
1.7.12.4
