The patch titled
Subject: mm/mempolicy.c: use match_string() helper to simplify the code
has been added to the -mm tree. Its filename is
mm-use-match_string-helper-to-simplify-the-code.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-use-match_string-helper-to-simplify-the-code.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-use-match_string-helper-to-simplify-the-code.patch
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------------------------------------------------------
From: zhong jiang <zhongjiang@xxxxxxxxxx>
Subject: mm/mempolicy.c: use match_string() helper to simplify the code
match_string() returns the index of an array for a matching string, which
can be used intead of open coded implementation.
Link: http://lkml.kernel.org/r/1536988365-50310-1-git-send-email-zhongjiang@xxxxxxxxxx
Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mempolicy.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
--- a/mm/mempolicy.c~mm-use-match_string-helper-to-simplify-the-code
+++ a/mm/mempolicy.c
@@ -2711,12 +2711,11 @@ static const char * const policy_modes[]
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 mem
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) {
_
Patches currently in -mm which might be from zhongjiang@xxxxxxxxxx are
ocfs2-fix-a-gcc-compiled-warning.patch
mm-use-match_string-helper-to-simplify-the-code.patch
mm-page_owner-align-with-pageblock_nr-pages.patch
radix-tree-use-div_round_up-instead-of-reimplementing-its-function.patch
lib-sg_pool-remove-unnecessary-null-check-when-free-the-object.patch
