diff options
Diffstat (limited to 'testcases/kernel/mem/tunable')
| -rw-r--r-- | testcases/kernel/mem/tunable/max_map_count.c | 27 | ||||
| -rw-r--r-- | testcases/kernel/mem/tunable/min_free_kbytes.c | 16 | ||||
| -rw-r--r-- | testcases/kernel/mem/tunable/overcommit_memory.c | 20 |
3 files changed, 15 insertions, 48 deletions
diff --git a/testcases/kernel/mem/tunable/max_map_count.c b/testcases/kernel/mem/tunable/max_map_count.c index caf8972e0..f33095473 100644 --- a/testcases/kernel/mem/tunable/max_map_count.c +++ b/testcases/kernel/mem/tunable/max_map_count.c @@ -53,26 +53,6 @@ #define MAP_COUNT_DEFAULT 1024 #define MAX_MAP_COUNT 65536L -static long old_max_map_count = -1; -static long old_overcommit = -1; - -static void setup(void) -{ - SAFE_ACCESS(PATH_SYSVM "max_map_count", F_OK); - - old_max_map_count = get_sys_tune("max_map_count"); - old_overcommit = get_sys_tune("overcommit_memory"); - set_sys_tune("overcommit_memory", 0, 1); -} - -static void cleanup(void) -{ - if (old_overcommit != -1) - set_sys_tune("overcommit_memory", old_overcommit, 0); - if (old_max_map_count != -1) - set_sys_tune("max_map_count", old_max_map_count, 0); -} - /* This is a filter to exclude map entries which aren't accounted * for in the vm_area_struct's map_count. */ @@ -210,7 +190,10 @@ static void max_map_count_test(void) static struct tst_test test = { .needs_root = 1, .forks_child = 1, - .setup = setup, - .cleanup = cleanup, .test_all = max_map_count_test, + .save_restore = (const struct tst_path_val[]) { + {"/proc/sys/vm/overcommit_memory", "0", TST_SR_TBROK}, + {"/proc/sys/vm/max_map_count", NULL, TST_SR_TBROK}, + {} + }, }; diff --git a/testcases/kernel/mem/tunable/min_free_kbytes.c b/testcases/kernel/mem/tunable/min_free_kbytes.c index eab6c8b2e..19da409e8 100644 --- a/testcases/kernel/mem/tunable/min_free_kbytes.c +++ b/testcases/kernel/mem/tunable/min_free_kbytes.c @@ -41,7 +41,6 @@ volatile int end; static long default_tune = -1; -static long orig_overcommit = -1; static unsigned long total_mem; static void test_tune(unsigned long overcommit_policy); @@ -217,15 +216,6 @@ static void setup(void) total_mem = SAFE_READ_MEMINFO("MemTotal:") + SAFE_READ_MEMINFO("SwapTotal:"); default_tune = get_sys_tune("min_free_kbytes"); - orig_overcommit = get_sys_tune("overcommit_memory"); -} - -static void cleanup(void) -{ - if (default_tune != -1) - set_sys_tune("min_free_kbytes", default_tune, 0); - if (orig_overcommit != -1) - set_sys_tune("overcommit_memory", orig_overcommit, 0); } static struct tst_test test = { @@ -233,6 +223,10 @@ static struct tst_test test = { .forks_child = 1, .max_runtime = TST_UNLIMITED_RUNTIME, .setup = setup, - .cleanup = cleanup, .test_all = min_free_kbytes_test, + .save_restore = (const struct tst_path_val[]) { + {"/proc/sys/vm/overcommit_memory", NULL, TST_SR_TBROK}, + {"/proc/sys/vm/min_free_kbytes", NULL, TST_SR_TBROK}, + {} + }, }; diff --git a/testcases/kernel/mem/tunable/overcommit_memory.c b/testcases/kernel/mem/tunable/overcommit_memory.c index 7fe8fe14c..ffb7a6d9d 100644 --- a/testcases/kernel/mem/tunable/overcommit_memory.c +++ b/testcases/kernel/mem/tunable/overcommit_memory.c @@ -70,7 +70,6 @@ #define EXPECT_FAIL 1 static char *R_opt; -static long old_overcommit_memory = -1; static long old_overcommit_ratio = -1; static long overcommit_ratio; static long sum_total; @@ -90,16 +89,11 @@ static void setup(void) long mem_total, swap_total; struct rlimit lim; - if (access(PATH_SYSVM "overcommit_memory", F_OK) == -1 || - access(PATH_SYSVM "overcommit_ratio", F_OK) == -1) - tst_brk(TCONF, "system doesn't support overcommit_memory"); - if (R_opt) overcommit_ratio = SAFE_STRTOL(R_opt, 0, LONG_MAX); else overcommit_ratio = DEFAULT_OVER_RATIO; - old_overcommit_memory = get_sys_tune("overcommit_memory"); old_overcommit_ratio = get_sys_tune("overcommit_ratio"); mem_total = SAFE_READ_MEMINFO("MemTotal:"); @@ -128,14 +122,6 @@ static void setup(void) tst_res(TINFO, "TotalBatchSize is %ld kB", total_batch_size); } -static void cleanup(void) -{ - if (old_overcommit_memory != -1) - set_sys_tune("overcommit_memory", old_overcommit_memory, 0); - if (old_overcommit_ratio != -1) - set_sys_tune("overcommit_ratio", old_overcommit_ratio, 0); -} - static void overcommit_memory_test(void) { @@ -269,6 +255,10 @@ static struct tst_test test = { {} }, .setup = setup, - .cleanup = cleanup, .test_all = overcommit_memory_test, + .save_restore = (const struct tst_path_val[]) { + {"/proc/sys/vm/overcommit_memory", NULL, TST_SR_TBROK}, + {"/proc/sys/vm/overcommit_ratio", NULL, TST_SR_TBROK}, + {} + }, }; |