diff options
Diffstat (limited to 'mm/vmpressure.c')
| -rw-r--r-- | mm/vmpressure.c | 35 |
1 files changed, 7 insertions, 28 deletions
diff --git a/mm/vmpressure.c b/mm/vmpressure.c index 85350ce2d25d7..4854584ec436e 100644 --- a/mm/vmpressure.c +++ b/mm/vmpressure.c @@ -342,26 +342,6 @@ void vmpressure_prio(gfp_t gfp, struct mem_cgroup *memcg, int prio) vmpressure(gfp, memcg, true, vmpressure_win, 0); } -static enum vmpressure_levels str_to_level(const char *arg) -{ - enum vmpressure_levels level; - - for (level = 0; level < VMPRESSURE_NUM_LEVELS; level++) - if (!strcmp(vmpressure_str_levels[level], arg)) - return level; - return -1; -} - -static enum vmpressure_modes str_to_mode(const char *arg) -{ - enum vmpressure_modes mode; - - for (mode = 0; mode < VMPRESSURE_NUM_MODES; mode++) - if (!strcmp(vmpressure_str_modes[mode], arg)) - return mode; - return -1; -} - #define MAX_VMPRESSURE_ARGS_LEN (strlen("critical") + strlen("hierarchy") + 2) /** @@ -390,27 +370,26 @@ int vmpressure_register_event(struct mem_cgroup *memcg, char *token; int ret = 0; - spec_orig = spec = kzalloc(MAX_VMPRESSURE_ARGS_LEN + 1, GFP_KERNEL); + spec_orig = spec = kstrndup(args, MAX_VMPRESSURE_ARGS_LEN, GFP_KERNEL); if (!spec) { ret = -ENOMEM; goto out; } - strncpy(spec, args, MAX_VMPRESSURE_ARGS_LEN); /* Find required level */ token = strsep(&spec, ","); - level = str_to_level(token); - if (level == -1) { - ret = -EINVAL; + level = match_string(vmpressure_str_levels, VMPRESSURE_NUM_LEVELS, token); + if (level < 0) { + ret = level; goto out; } /* Find optional mode */ token = strsep(&spec, ","); if (token) { - mode = str_to_mode(token); - if (mode == -1) { - ret = -EINVAL; + mode = match_string(vmpressure_str_modes, VMPRESSURE_NUM_MODES, token); + if (mode < 0) { + ret = mode; goto out; } } |