Conform the layout, informational and status messages to TAP. No functional change is intended other than the layout of output messages.
Signed-off-by: Muhammad Usama Anjum <[email protected]> --- tools/testing/selftests/mm/khugepaged.c | 3 +- tools/testing/selftests/mm/thp_settings.c | 123 ++++++++-------------- tools/testing/selftests/mm/thp_settings.h | 4 +- 3 files changed, 47 insertions(+), 83 deletions(-) diff --git a/tools/testing/selftests/mm/khugepaged.c b/tools/testing/selftests/mm/khugepaged.c index d51fdaee7dc6a..3f202da0867c5 100644 --- a/tools/testing/selftests/mm/khugepaged.c +++ b/tools/testing/selftests/mm/khugepaged.c @@ -152,8 +152,7 @@ static void get_finfo(const char *dir) major(path_stat.st_dev), minor(path_stat.st_dev)) >= sizeof(path)) ksft_exit_fail_msg("%s: Pathname is too long\n", __func__); - if (read_file(path, buf, sizeof(buf)) < 0) - ksft_exit_fail_msg("read_file(read_num): %s\n", strerror(errno)); + read_file(path, buf, sizeof(buf)); if (strstr(buf, "DEVTYPE=disk")) { /* Found it */ diff --git a/tools/testing/selftests/mm/thp_settings.c b/tools/testing/selftests/mm/thp_settings.c index a4163438108ec..273a95d025285 100644 --- a/tools/testing/selftests/mm/thp_settings.c +++ b/tools/testing/selftests/mm/thp_settings.c @@ -5,7 +5,9 @@ #include <stdlib.h> #include <string.h> #include <unistd.h> +#include <errno.h> +#include "../kselftest.h" #include "thp_settings.h" #define THP_SYSFS "/sys/kernel/mm/transparent_hugepage/" @@ -42,58 +44,45 @@ static const char * const shmem_enabled_strings[] = { NULL }; -int read_file(const char *path, char *buf, size_t buflen) +void read_file(const char *path, char *buf, size_t buflen) { int fd; ssize_t numread; fd = open(path, O_RDONLY); if (fd == -1) - return 0; + ksft_exit_fail_msg("%s open failed: %s\n", path, strerror(errno)); numread = read(fd, buf, buflen - 1); if (numread < 1) { close(fd); - return 0; + ksft_exit_fail_msg("No data read\n"); } buf[numread] = '\0'; close(fd); - - return (unsigned int) numread; } -int write_file(const char *path, const char *buf, size_t buflen) +void write_file(const char *path, const char *buf, size_t buflen) { int fd; ssize_t numwritten; fd = open(path, O_WRONLY); - if (fd == -1) { - printf("open(%s)\n", path); - exit(EXIT_FAILURE); - return 0; - } + if (fd == -1) + ksft_exit_fail_msg("%s open failed\n", path); numwritten = write(fd, buf, buflen - 1); close(fd); - if (numwritten < 1) { - printf("write(%s)\n", buf); - exit(EXIT_FAILURE); - return 0; - } - - return (unsigned int) numwritten; + if (numwritten < 1) + ksft_exit_fail_msg("write failed (%s)\n", buf); } const unsigned long read_num(const char *path) { char buf[21]; - if (read_file(path, buf, sizeof(buf)) < 0) { - perror("read_file()"); - exit(EXIT_FAILURE); - } + read_file(path, buf, sizeof(buf)); return strtoul(buf, NULL, 10); } @@ -103,10 +92,7 @@ void write_num(const char *path, unsigned long num) char buf[21]; sprintf(buf, "%ld", num); - if (!write_file(path, buf, strlen(buf) + 1)) { - perror(path); - exit(EXIT_FAILURE); - } + write_file(path, buf, strlen(buf) + 1); } int thp_read_string(const char *name, const char * const strings[]) @@ -117,30 +103,22 @@ int thp_read_string(const char *name, const char * const strings[]) int ret; ret = snprintf(path, PATH_MAX, THP_SYSFS "%s", name); - if (ret >= PATH_MAX) { - printf("%s: Pathname is too long\n", __func__); - exit(EXIT_FAILURE); - } + if (ret >= PATH_MAX) + ksft_exit_fail_msg("%s: Pathname is too long\n", __func__); - if (!read_file(path, buf, sizeof(buf))) { - perror(path); - exit(EXIT_FAILURE); - } + read_file(path, buf, sizeof(buf)); c = strchr(buf, '['); - if (!c) { - printf("%s: Parse failure\n", __func__); - exit(EXIT_FAILURE); - } + if (!c) + ksft_exit_fail_msg("%s: Parse failure\n", __func__); c++; memmove(buf, c, sizeof(buf) - (c - buf)); c = strchr(buf, ']'); - if (!c) { - printf("%s: Parse failure\n", __func__); - exit(EXIT_FAILURE); - } + if (!c) + ksft_exit_fail_msg("%s: Parse failure\n", __func__); + *c = '\0'; ret = 0; @@ -150,8 +128,8 @@ int thp_read_string(const char *name, const char * const strings[]) ret++; } - printf("Failed to parse %s\n", name); - exit(EXIT_FAILURE); + ksft_exit_fail_msg("Failed to parse %s\n", name); + return -1; } void thp_write_string(const char *name, const char *val) @@ -160,15 +138,10 @@ void thp_write_string(const char *name, const char *val) int ret; ret = snprintf(path, PATH_MAX, THP_SYSFS "%s", name); - if (ret >= PATH_MAX) { - printf("%s: Pathname is too long\n", __func__); - exit(EXIT_FAILURE); - } + if (ret >= PATH_MAX) + ksft_exit_fail_msg("%s: Pathname is too long\n", __func__); - if (!write_file(path, val, strlen(val) + 1)) { - perror(path); - exit(EXIT_FAILURE); - } + write_file(path, val, strlen(val) + 1); } const unsigned long thp_read_num(const char *name) @@ -177,10 +150,9 @@ const unsigned long thp_read_num(const char *name) int ret; ret = snprintf(path, PATH_MAX, THP_SYSFS "%s", name); - if (ret >= PATH_MAX) { - printf("%s: Pathname is too long\n", __func__); - exit(EXIT_FAILURE); - } + if (ret >= PATH_MAX) + ksft_exit_fail_msg("%s: Pathname is too long\n", __func__); + return read_num(path); } @@ -190,10 +162,9 @@ void thp_write_num(const char *name, unsigned long num) int ret; ret = snprintf(path, PATH_MAX, THP_SYSFS "%s", name); - if (ret >= PATH_MAX) { - printf("%s: Pathname is too long\n", __func__); - exit(EXIT_FAILURE); - } + if (ret >= PATH_MAX) + ksft_exit_fail_msg("%s: Pathname is too long\n", __func__); + write_num(path, num); } @@ -275,29 +246,26 @@ void thp_write_settings(struct thp_settings *settings) struct thp_settings *thp_current_settings(void) { - if (!settings_index) { - printf("Fail: No settings set"); - exit(EXIT_FAILURE); - } + if (!settings_index) + ksft_exit_fail_msg("Fail: No settings set\n"); + return settings_stack + settings_index - 1; } void thp_push_settings(struct thp_settings *settings) { - if (settings_index >= MAX_SETTINGS_DEPTH) { - printf("Fail: Settings stack exceeded"); - exit(EXIT_FAILURE); - } + if (settings_index >= MAX_SETTINGS_DEPTH) + ksft_exit_fail_msg("Fail: Settings stack exceeded\n"); + settings_stack[settings_index++] = *settings; thp_write_settings(thp_current_settings()); } void thp_pop_settings(void) { - if (settings_index <= 0) { - printf("Fail: Settings stack empty"); - exit(EXIT_FAILURE); - } + if (settings_index <= 0) + ksft_exit_fail_msg("Fail: Settings stack empty\n"); + --settings_index; thp_write_settings(thp_current_settings()); } @@ -335,14 +303,11 @@ unsigned long thp_supported_orders(void) for (i = 0; i < NR_ORDERS; i++) { ret = snprintf(path, PATH_MAX, THP_SYSFS "hugepages-%ukB/enabled", (getpagesize() >> 10) << i); - if (ret >= PATH_MAX) { - printf("%s: Pathname is too long\n", __func__); - exit(EXIT_FAILURE); - } + if (ret >= PATH_MAX) + ksft_exit_fail_msg("%s: Pathname is too long\n", __func__); - ret = read_file(path, buf, sizeof(buf)); - if (ret) - orders |= 1UL << i; + read_file(path, buf, sizeof(buf)); + orders |= 1UL << i; } return orders; diff --git a/tools/testing/selftests/mm/thp_settings.h b/tools/testing/selftests/mm/thp_settings.h index 71cbff05f4c7f..04a6a7bbd08f8 100644 --- a/tools/testing/selftests/mm/thp_settings.h +++ b/tools/testing/selftests/mm/thp_settings.h @@ -56,8 +56,8 @@ struct thp_settings { struct hugepages_settings hugepages[NR_ORDERS]; }; -int read_file(const char *path, char *buf, size_t buflen); -int write_file(const char *path, const char *buf, size_t buflen); +void read_file(const char *path, char *buf, size_t buflen); +void write_file(const char *path, const char *buf, size_t buflen); const unsigned long read_num(const char *path); void write_num(const char *path, unsigned long num); -- 2.42.0
